Concorde 4500 Servicing Guide

Transcription


Concorde•4500
Servicing Guide
This document was created with FrameMaker 4.0.4
Copyright  1996: PictureTel Corporation—Printed in U.S.A.
PictureTel Corporation, 100 Minuteman Road, Andover, MA 01810
Telephone number: 508-292-5000
PictureTel is a registered trademark of PictureTel Corporation. The PictureTel logo, Concorde, PowerCam,
PowerMic, Look-At-Me-Button, LAMB, WorldCart, QuickPad, SG3, SG4, PT724, M-8000, GroupShare, and
Link-64E are trademarks of PictureTel Corporation.
Bose is a registered trademark of Bose Corporation.
VPN is a registered trademark of Sprint.
The information contained in this document is subject to change without notice. PictureTel assumes no
responsibility for technical or editorial errors or omissions that may appear in this document or for the use of
this material. Nor does PictureTel make any commitment to update the information contained in this
document. This document contains proprietary information which is protected by copyright. All rights
reserved. No part of this document may be photocopied or reproduced in any form without the prior written
consent of PictureTel Corporation.
Edition: 800-0631-01/A
Customer order number: DOC-S4500-SERV
Note: In this document, the term “monitor” is used to refer to the NTSC or PAL television (TV) broadcast
receiver that is part of the Concorde•4500 system. These receivers are governed by different regulations
than computer monitors.
The PictureTel Concorde•4500 complies with EEC Directives 89/336/EEC, 93/68/EEC and European
standards EN 55022B, EN 50082-1, and EN 60950. Consequently, the Concorde•4500 is eligible to display
the following marking:
CC168 X
Warning: Changes or modifications to this unit not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant
to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference when the equipment is operated in a commercial environment. This equipment generates,
uses, and can radiate radio frequency energy and, if not installed, operated, and maintained in
accordance with PictureTel Corporation guides and manuals, may cause harmful interference to radio
communications. Operation of this equipment in a residential area is likely to cause harmful interference
in which case the user will be required to correct the interference at his own expense.
Shielded cables must be used with this unit to ensure compliance with the Class A FCC limits.
Bescheinigung Des Herstellers/Importeurs
Hiermit wird bescheinigt, daß das Concorde•4500 in Übereinstimmung mit den Bestimmungen
der Vfg 1046/1984 funkenstört ist.
Der Deutschen Bundespost wurde das Inverkehrbringen dieses Geräts angezeigt und die Berechtigung zur
Überprüfung der Serie auf Einhaltung der Bestimmungen eingeräumt. Dieses Gerät wurde sowohl einzeln
als auch in einer Anlage, die dem normalen Anwendungsfall entspricht, auf die Einhaltung der
Funkentstörbestimmungen geprüft. Es ist jedoch möglich, daß die Funkentstörbestimmungen unter
ungünstigen Umständen bei anderen Gerätekombinationen nicht eingehalten werden. Für die Einhaltung
der Funkentstörbestimmungen der gesamten Anlage, in der dieses Gerät betrieben wird, ist der Betreiber
verantwortlich.
Notice to Users of Public DATAPHONE Digital Service
The following instructions are provided to ensure that you comply with FCC Rules, Part 68.
1.
All direct connections to DDS lines must be made through standard plugs and jacks furnished by the
telephone company. No connections can be made to party lines or coin lines. Before connecting your
unit, you must do the following:
a.
Tell your local telephone company that you have an FCC registered device and that you wish to
connect to the company’s line. Provide them with the 14-digit FCC registration number listed on the
device’s label. They will also need to know the facility interface code and service code to connect
the necessary service. For your unit, the facility interface code is 04DU5-56 for 56 kbps service. The
service code is 6.0Y.
b.
Inform the local telephone company of the jack arrangement you want to use, which is RJ-48S.
c.
Connect the channel service unit (CSU) with the appropriate cable after the telephone company has
installed the requested jack.
2.
If the unit appears to be malfunctioning, it should be disconnected from the telephone line until you learn
if your equipment or the telephone line is the source of the trouble. If your equipment needs repair, it
should not be reconnected until it is repaired.
3.
The CSU is designed to prevent harm to the DDS network. If the telephone company finds that the
equipment exceeds tolerance parameters, the telephone company can temporarily disconnect service,
although they will attempt to give you advance notice if possible.
4.
Under FCC Rules, no customer is authorized to repair this equipment. This restriction applies regardless
of whether the equipment is in or out of warranty.
5.
If the telephone company alters their equipment or operations in a manner that will affect use of this
device, they must give you advance warning so as to give you the opportunity for uninterrupted service.
You will be advised of your right to file a complaint with the FCC.
6.
In the event of equipment malfunction, all repairs should be performed by PictureTel Corporation or an
authorized agent. It is the responsibility of the users requiring service to report the need for service to
our company or to one of our authorized agents.
Note: It is illegal to export a Concorde•4500 system that contains the encryption option from the United
States without approval from the United States Department of State. See your PictureTel sales
representative for details.
Notice to Canadian Users
This digital apparatus does not exceed the Class A limits for radio noise emissions from digital apparatus set
out in the Radio Interference Regulations of the Canadian Department of Communications (DOC).
Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les limites applicables aux
appareils numériques de la class A prescrites dans le Réglement sur le brouillage radioélectrique édicté par
le ministère des Communications du Canada.
The Canadian Department of Communications label identifies certified equipment. This certification means
that the equipment meets certain telecommunications network protective, operational, and safety
requirements. The Department does not guarantee the equipment will operate to the user’s satisfaction.
Before installing this equipment, users should ensure that it is permissible to be connected to the facilities of
the local telecommunications company. The equipment must also be installed using an acceptable method
of connection. In some cases, the company’s inside wiring associated with a single line individual service
may be extended by means of a certified connector assembly (telephone extension cord). The customer
should be aware that compliance with the above conditions may not prevent degradation of service in some
situations. Repairs to certified equipment should be made by an authorized Canadian maintenance facility
designated by the supplier. Any repairs or alterations made by the user to this equipment, or equipment
malfunctions, may give the telecommunications company cause to request the user to disconnect the
equipment. Users should ensure, for their own protection, that the electrical ground connections of the power
utility, telephone lines, and internal metallic water pipe system, if present, are connected together. This
precaution may be particularly important in rural areas.
DOC Load Number (LN) = 6
Caution: Users should not attempt to make such connections themselves, but should contact the
appropriate electric inspection authority, or electrician, as appropriate.
FCC Part 68 Notice (U.S.)
The Load Number (LN) assigned to each terminal device denotes the percentage of the total load to be
connected to a telephone loop which is used by the device, to prevent overloading. The termination on a loop
may consist of any combination of devices subject only to the requirement that the total of the Load Numbers
of all the devices does not exceed 100.
Ringer Equivalence Number (REN) = .6B
Connection To United Kingdom Telecommunications Network
The PictureTel Concorde•4500 (if applicable) is approved to connect to the following United Kingdom (UK)
Public Telecommunications Operator (PTO) network services:
❑
Indirect connection to PTO-provided digital switched and point-to-point services through suitable
approved branch systems.
This includes the following types of connections:
❑
Indirect connection to basic rate ISDN services (for example, British Telecom’s ISDN2 service) through
approved terminal adaptors, multiplexers, or PABXs.
❑
Indirect connection to digital leased lines (for example, British Telecom’s Kilostream and Megastream
services) through approved equipment, such as multiplexers or PABXs.
The Approval Number is: NS/3832/1/M/602676
Warning: The Concorde•4500 must not be connected directly to any UK PTO provided services.
The Concorde•4500 as approved above is comprised of the following elements:
❑
Electronics module
❑
Keypad
❑
Line-in microphones
❑
Microphones
❑
X.21 (V.11) connecting cables
All other equipment shipped as part of a Concorde•4500 (for example, cameras or monitors) is approved to
connect indirectly to the UK PTO networks when connected through the Concorde•4500 electronics module
under the terms of General Approval Number NS/G/1234/J/100003.
Contents
About This Guide ............................................................................................................................ xxi
Chapter 1
Concorde¥4500 System Overview
Introducing the Concorde¥4500 ................................................................................................... 1-1
Concorde¥4500 System Block Diagram....................................................................................... 1-3
Electronics Module ......................................................................................................................... 1-6
Software Cartridge ................................................................................................................ 1-8
Power Supply......................................................................................................................... 1-8
Fans........................................................................................................................................ 1-11
Monitors ......................................................................................................................................... 1-12
Cameras.......................................................................................................................................... 1-12
PowerCam100 ...................................................................................................................... 1-12
Auxiliary Camera ................................................................................................................ 1-13
Document Camera .............................................................................................................. 1-14
Microphones .................................................................................................................................. 1-14
Lapel Microphone ............................................................................................................... 1-16
Tabletop Microphone.......................................................................................................... 1-16
Keypads.......................................................................................................................................... 1-16
Wireless Keypad.................................................................................................................. 1-16
QuickPad .............................................................................................................................. 1-17
Wired Keypad ...................................................................................................................... 1-19
Look-At-Me-Button ...................................................................................................................... 1-19
vii
Chapter 2
Understanding the Electronics Module
Backplane..........................................................................................................................................2-1
Communications Board ..................................................................................................................2-9
Control Ports A and B ...........................................................................................................2-9
Video Board....................................................................................................................................2-11
Graphics Daughter Board ...................................................................................................2-12
Audio Board ...................................................................................................................................2-14
Telephone Interface Daughter Board................................................................................2-16
Data Interface Board .....................................................................................................................2-18
Modem Control Signals................................................................................................................2-21
Chapter 3
Network Interfaces
Concorde¥4500 Network Interfaces .............................................................................................3-2
X.21 Network Interface .........................................................................................................3-4
Switched-56 Network Interface ...........................................................................................3-5
V.35 Network Interface .........................................................................................................3-6
RS-449 Network Interface .....................................................................................................3-7
V.25 bis Network Interface ...................................................................................................3-8
Call Setup Using Nondialed and Dialed Devices.......................................................................3-9
Call Setup Using the RS-366A Dialing Procedure.............................................................3-9
V.35, RS-449, and Switched-56 Call Setup with Auto Answering .........................................3-12
Dialed Call Setup with Auto Answering..........................................................................3-12
Nondialed Call Setup with Auto Answering ..................................................................3-13
Call Setup with Manual Answering ...........................................................................................3-13
V.35, RS-449, and Switched-56 Call Disconnect........................................................................3-13
X.21 Call Setup and Disconnect...................................................................................................3-14
Placing a Dialed Call with X.21 Data Circuit-Terminating Equipment (DCE) ...........3-14
Receiving a Dialed Call from an X.21 DCE ......................................................................3-17
Placing a Nondialed Call with an X.21 DCE....................................................................3-19
viii
Receiving a Nondialed Call from an X.21 DCE .............................................................. 3-20
V.25 bis Call Setup and Disconnect............................................................................................ 3-21
Placing a Dialed Call with a V.25 bis Interface ............................................................... 3-22
Receiving a Dialed Call from a V.25 bis Data Unit......................................................... 3-23
Dialing from a V.25 bis Data Unit Keypad ...................................................................... 3-25
Throughput Limitations............................................................................................................... 3-26
Chapter 4
Troubleshooting
Safety Requirements....................................................................................................................... 4-1
Required Tools and Test Equipment............................................................................................ 4-2
Diagnostic Procedures.................................................................................................................... 4-3
Verifying Power-On ....................................................................................................................... 4-4
Pass-Fail Status ...................................................................................................................... 4-4
Fault Log ................................................................................................................................. 4-5
Board Replacements.............................................................................................................. 4-6
Basic Troubleshooting Procedures ............................................................................................... 4-6
No System Power .................................................................................................................. 4-7
No Display on the Monitor .................................................................................................. 4-9
No Audio .............................................................................................................................. 4-11
Network or Communications Failure .............................................................................. 4-13
Peripheral Failure ................................................................................................................ 4-16
Warning Messages........................................................................................................................ 4-21
Verifying Electrical Voltage......................................................................................................... 4-24
Installation Checklist .................................................................................................................... 4-26
Technical Tips................................................................................................................................ 4-26
Isolating a Problem with Port 1 and Port 2...................................................................... 4-30
Loopback Tests .............................................................................................................................. 4-31
Running the Local Video/Audio Loopback Test ........................................................... 4-34
Running the Local Channel Loopback Test..................................................................... 4-35
Running the Remote Video/Audio Loopback Test ....................................................... 4-36
Running the Remote CSU Loopback Test........................................................................ 4-37
ix
Chapter 5
Ordering and Returning Components
Ordering Components ....................................................................................................................5-1
Field Replaceable Units ..................................................................................................................5-1
Returning Components ..................................................................................................................5-5
Appendix A
Concorde¥4500 Specifications
Physical Specifications ...................................................................................................................A-1
Electrical Specifications .................................................................................................................A-2
Environmental Specifications .......................................................................................................A-3
Video Specifications .......................................................................................................................A-4
Audio Specifications ......................................................................................................................A-6
Network Specifications..................................................................................................................A-6
Appendix B
Pin Assignments
PowerCam 100 Cable ..................................................................................................................... B-1
Document Camera Cable .............................................................................................................. B-3
Wired Keypad Interface Connector ............................................................................................. B-4
PowerMic 100 Cable....................................................................................................................... B-5
Lapel and Tabletop Microphone Connectors ............................................................................. B-6
PC Serial Data Cable ...................................................................................................................... B-6
Switched-56 Network
Interface............................................................................................................................................ B-8
V.35 Network Interface.................................................................................................................. B-9
RS-449 Network Interface............................................................................................................ B-11
X.21 Network Interface ................................................................................................................ B-13
V.25 bis Network Interface.......................................................................................................... B-15
RS-366A Network Dialing Port .................................................................................................. B-18
x
Appendix C
Electronics Module Connections
Network Interface Connections ....................................................................................................C-1
Audio and Video Board Connections ..........................................................................................C-5
Audio Board Connections....................................................................................................C-6
Video Board Connections.....................................................................................................C-8
Audio and Video Board Cabling.......................................................................................C-10
Appendix D
Control and Data Port Communications
Word Length and Parity ............................................................................................................... D-1
Synchronous and Asynchronous Communication ................................................................... D-2
Baud Rate ........................................................................................................................................ D-3
Data Port End-to-End Delay......................................................................................................... D-4
Response Times and Buffer Space............................................................................................... D-4
Flow Control Between DTE Devices ........................................................................................... D-5
Hardware Flow Control ...................................................................................................... D-6
Software Flow Control......................................................................................................... D-8
Appendix E
Connecting a VCR
Connecting One VCR ..................................................................................................................... E-1
Connecting Two VCRs ................................................................................................................... E-3
Connecting a Stereo VCR............................................................................................................... E-5
Appendix F
Frequently Asked Questions
Algorithms ....................................................................................................................................... F-2
Peripherals ....................................................................................................................................... F-3
Miscellaneous .................................................................................................................................. F-3
xi
Appendix G
Important Information ..................................................................................................................G-1
Glossary ................................................................................................................................. Glossary-1
Index .............................................................................................................................................Index-1
xii
Figures
Figure 1-1:
Concorde¥4500 System ............................................................................................. 1-3
Figure 1-2:
Concorde¥4500 System Block Diagram.................................................................. 1-4
Figure 1-2:
Concorde¥4500 System Block Diagram (continued) ............................................ 1-5
Figure 1-3:
WorldCart and the Electronics Module.................................................................. 1-6
Figure 1-4:
Concorde¥4500 Functional Block Diagram ........................................................... 1-7
Figure 1-5:
Software Cartridge..................................................................................................... 1-8
Figure 1-6:
Power Supply ............................................................................................................. 1-9
Figure 1-7:
Concorde¥4500 Fans ............................................................................................... 1-11
Figure 1-8:
PowerCam 100 Camera........................................................................................... 1-12
Figure 1-9:
PowerMic Microphone............................................................................................ 1-15
Figure 1-10:
Wireless Keypad ...................................................................................................... 1-17
Figure 1-11:
QuickPad................................................................................................................... 1-18
Figure 1-12:
Look-At-Me-Button ................................................................................................. 1-19
Figure 2-1:
Voltage Test Points on the Backplane ..................................................................... 2-3
Figure 2-2:
System Boards ............................................................................................................ 2-4
Figure 2-3:
HAP-6 Board............................................................................................................... 2-7
Figure 2-4:
HAP-4 Board............................................................................................................... 2-8
Figure 2-5:
Communications Board .......................................................................................... 2-10
Figure 2-6:
Video Board .............................................................................................................. 2-12
Figure 2-7:
Graphics Daughter Board....................................................................................... 2-14
Figure 2-8:
Audio Board ............................................................................................................. 2-16
Figure 2-9:
Data Interface Board................................................................................................ 2-20
xiii
Figure 3-1:
Electronics Module and Network Boards...............................................................3-3
Figure 3-2:
RS-366A Call Setup (Part 1).....................................................................................3-10
Figure 3-2:
RS-366A Call Setup (Part 2).....................................................................................3-11
Figure 3-3:
X.21 Dialed Outgoing Call ......................................................................................3-16
Figure 3-4:
X.21 Dialed Incoming Call ......................................................................................3-18
Figure 3-5:
X.21 Nondialed Outgoing Call ...............................................................................3-19
Figure 3-6:
X.21 Nondialed Incoming Call ...............................................................................3-21
Figure 3-7:
V.25 bis Dialed Outgoing Call ................................................................................3-23
Figure 3-8:
V.25 bis Dialed Incoming Call ................................................................................3-24
Figure 3-9:
V.25 bis Dialing from the Data Unit Keypad........................................................3-25
Figure 4-1:
System Power-On Procedure....................................................................................4-8
Figure 4-2:
DIP Switches for Wireless Keypad ........................................................................4-20
Figure 4-3:
Near-End Tests Menu ..............................................................................................4-32
Figure 4-4:
Far-End Tests Menu .................................................................................................4-33
Figure 4-5:
Local Video/Audio Loopback Test .......................................................................4-35
Figure 4-6:
Local Channel Loopback Test.................................................................................4-36
Figure 4-7:
Remote Video/Audio Loopback Test ...................................................................4-36
Figure 4-8:
Remote CSU Loopback Test....................................................................................4-37
Figure B-1:
8-Pin Mini DIN Connector ....................................................................................... B-2
Figure B-2:
Document Camera Cables........................................................................................ B-3
Figure B-3:
RJ-11 Jack .................................................................................................................... B-4
Figure B-4:
7-Pin Mini DIN Connector ....................................................................................... B-6
Figure B-5:
RJ-48S Interface Jack.................................................................................................. B-8
Figure B-6:
V.35 Interface DC-37 Connector on the Electronics Module............................... B-9
Figure B-7:
Adapter Cable and Connection Panel for a V.35 Network Interface............... B-11
Figure B-8:
EIA RS-449 Interface DC-37 Connector on the Electronics Module................. B-11
Figure B-9:
X.21 Interface Connector on the Electronics Module ......................................... B-15
Figure B-10:
Cable Between the V.25 bis Network Connection Panel
and a Data Unit ........................................................................................................ B-16
Figure C-2:
Back Panel for V.35 (or RS-449) Connection.......................................................... C-3
Figure C-3:
Back Panel for X.21 (or V.25 bis) Connection ........................................................ C-4
Figure C-4:
Connections to the Audio and Video Boards........................................................ C-5
xiv
Figure C-5:
Cabling for the Audio and Video Boards.............................................................C-10
Figure D-1:
Asynchronous Data Format Examples .................................................................. D-2
Figure D-2:
Synchronous and Asynchronous Data Patterns................................................... D-3
Figure D-3:
Typical Devices Involved in End-to-End Communication................................. D-5
Figure D-4:
Typical End-to-End Data with Flow Control........................................................ D-7
Figure E-1:
Connecting a VCR...................................................................................................... E-2
Figure E-2:
Connecting Two VCRs .............................................................................................. E-4
Figure E-3:
Connecting a Stereo VCR.......................................................................................... E-5
xv
Tables
Table 1-1:
Power Supply Input .................................................................................................. 1-9
Table 1-2:
Power Supply Output Voltages and Currents .................................................... 1-10
Table 1-3:
PowerCam 100 Features.......................................................................................... 1-13
Table 1-4:
Document Camera Features ................................................................................... 1-14
Table 1-5:
PowerMic Features .................................................................................................. 1-15
Table 1-6:
Physical Specifications for the Wireless Keypad................................................. 1-17
Table 1-7:
Physical Specifications for the QuickPad ............................................................. 1-18
Table 1-8:
Physical Specifications for the LAMB................................................................... 1-19
Table 2-1:
Backplane Features .................................................................................................... 2-2
Table 2-2:
System Board Locations............................................................................................ 2-4
Table 2-3:
Functions of the AP Boards ...................................................................................... 2-6
Table 2-4:
Control Port Data Rates ............................................................................................ 2-9
Table 2-5:
Telephone Interface Board...................................................................................... 2-17
Table 2-6:
Data Interface Port Speeds...................................................................................... 2-19
Table 3-1:
Signal Flow for the Switched-56 Network Interface Board ................................. 3-5
Table 3-2:
RS-449 Interface Maximum Cable Lengths ............................................................ 3-8
Table 3-3:
Timeout Values ........................................................................................................ 3-12
Table 3-4:
Bandwidth Limitations ........................................................................................... 3-26
Table 4-1:
System Fault Codes ................................................................................................... 4-5
Table 4-2:
No System Power Checklist ..................................................................................... 4-7
Table 4-3:
No Display on the Monitor Checklist ..................................................................... 4-9
Table 4-4:
No Audio Checklist ................................................................................................. 4-11
xvii
Table 4-5:
Network or Communications Failure Checklist ..................................................4-13
Table 4-6:
Peripheral Failure Checklist....................................................................................4-16
Table 4-7:
System Warning Messages......................................................................................4-21
Table 4-8:
Installation Checklist................................................................................................4-26
Table 4-9:
Technical Tips ...........................................................................................................4-26
Table 4-10:
Loopback Tests .........................................................................................................4-33
Table 5-1:
List of Field Replaceable Units .................................................................................5-1
Table A-1:
Physical Specifications ..............................................................................................A-1
Table A-2:
Electrical Specifications ............................................................................................A-2
Table A-3:
Environmental Specifications ..................................................................................A-3
Table A-4:
Video Specifications ..................................................................................................A-4
Table A-5:
Audio Specifications .................................................................................................A-6
Table A-6:
Network Specifications.............................................................................................A-6
Table B-1:
Pin Assignments for the PowerCam 8-Pin Connector ......................................... B-1
Table B-2:
Pin Assignments for the RJ-11 Modular Jack Interface Connector .................... B-4
Table B-3:
Pin Assignments for PowerMic Cable.................................................................... B-5
Table B-4:
Pin Assignments for Lapel and Tabletop Microphone Connectors................... B-6
Table B-5:
Pin Assignments for the PC Serial Data Cable...................................................... B-7
Table B-6:
Pin Assignments for Four-Wire CSDC Interface Connector............................... B-8
Table B-7:
Pin Assignments for V.35 Network Data Port
(DC-37 Male) Adapter Cable ................................................................................... B-9
Table B-8:
Pin Assignments for EIA RS-449 Network Data Port
Using a Belden 9737 Cable ..................................................................................... B-12
Table B-9:
Pin Assignments for EIA RS-449 Network Data Port
Using a Belden 9731 Cable ..................................................................................... B-13
Table B-10:
Pin Assignments for X.21 Network Data Port..................................................... B-13
Table B-11:
Pin Assignments for Signal Flow Between the
DA-15 and M-34 Connectors ................................................................................. B-16
Table B-12:
Pin Assignments for RS-366A Network
Dialing Port .............................................................................................................. B-18
Table C-1:
Audio Board Connections ........................................................................................ C-6
Table C-2:
Video Board Connections......................................................................................... C-8
Table D-1:
Summary of Supported Flow Control Methods ...................................................D-6
xviii
Table D-2:
Modem Control Signals ........................................................................................... D-8
Table F-1:
Compression Induced Delay.................................................................................... F-2
Table G-1:
Your Technical Support Information ..................................................................... G-2
xix
About This Guide
This guide explains how to service and maintain a
Concorde¥4500 videoconferencing system.
You should be familiar with the technical aspects of a
Concorde¥4500 videoconferencing system to use this guide.
xxi
Concorde¥4500
System Overview
This chapter discusses the Concorde¥4500
❑
Electronics module
❑
System boards
❑
Software cartridge
❑
Power supply and fans
❑
Cameras, microphones, and keypads
1
Concorde¥4500
System Overview
This chapter presents an overview of the major components of a
PictureTel Concorde¥4500 videoconferencing system.
Introducing the
Concorde•4500
The Concorde¥4500 is a high-performance videoconferencing
system. What makes this a quality performing system is the way it
digitizes and compresses analog video and audio input. This
process signiÞcantly lowers the data rates for the transmission of
video and sound.
The sending system converts the analog video and audio signals to
digital form, compresses the digital data and places it onto the
telephone network. The receiving system decompresses the signal
and displays an image along with sound.
The system can receive video from:
❑
Any one of three pan-tilt-zoom (PTZ) cameras, such as the
PowerCam 100
❑
A VCR
❑
A document camera
A Concorde¥4500 system can receive audio from:
❑
A PowerMic
❑
A wired keypad (which is not standard with the
Concorde¥4500) and up to two additional microphones
attached to it
❑
External tabletop, or lapel microphones
❑
A VCR
1-1
CONCORDE¥4500 SYSTEM OVERVIEW
❑
A line-level audio input
❑
Telephone interface board
Through the keypad you select the video inputs for transmission
and display. The picture-in-picture window (PIP) on a main monitor
displays what is being transmitted to the far-end site while the main
screen displays the video image from the far-end site.
An optional second monitor (which does not have a PIP) can display
freeze-frame graphics from the near or far-end site. This additional
monitor can also display a full-screen preview of any near-end
video or graphic source. Without the second monitor, the main
monitor can still display graphics.
The following components are standard on a Concorde¥4500
system:
❑
PowerCam 100 (pan-tilt-zoom) main camera
❑
Main monitor
❑
PowerMic
❑
Wireless keypad
❑
Look-At-Me-Button
❑
Electronics module
❑
WorldCart
The following are optional components:
❑
QuickPad
❑
Graphics monitor
❑
Lapel or tabletop microphone
❑
Additional PTZ cameras (up to three)
❑
VCR
The following sections brießy describe the standard and optional
components. For more detailed information on how these
components are used, see the Concorde¥4500 UserÕs Guide. For
information on how to replace any of these components, see the
documentation that came with each Field Replaceable Unit (FRU).
For a complete list of FRUs, see Chapter 5, ÒOrdering and Replacing
Components.Ó
1-2
Concorde¥4500 System Block Diagram
The following illustration shows the Concorde¥4500 system.
Power Cam 100
Monitor
Speaker
PowerMIc
QuickPad
HELP
STATUS
SETUP
PRINT
ABC
1
DEF
2
GHI
CALL/ADD
Look-At-Me-Button
3
JKL
4
5
PQRS
TUV
7
8
MNO
6
WXYZ
9
0
#
HANG UP
CANCEL
ENTER
VIEW
FAR END
NEAR END
SNAPSHOT
PIP
DOC
VCR
SNAPSHOT
SEND
MAIN
1
2
PRESETS
SHOW ROOM
SET
ADJUST
FAR END
NEAR END
ZOOM
MUTE
POINT
VOLUME
Wireless
Keypad
WorldCart
Figure 1-1: Concorde•4500 System
Concorde•4500
System Block
Diagram
To get an overview of what all of the system boards look like, refer
to the following block diagram.
1-3
Video Board
Motion video input
Main camera
Auxiliary camera
Graphics camera
Document camera
VCR in
Video
matrix
Send vidio
Input
frame
store
DMA channel
Far-end video
Graphics video
VCR out
Monitor 2
Monitor 1
Merge
Motion video output
PIP
Text overlay
memory
Merge
DMA channel
Output
frame store
Graphics video output
Annotation
memory
Merge
Graphics image
frame store
Wireless
keypad
or Quick Pad
Main camera control
Auxiliary camera control
Graphics camera control
Camera
and keypad
control
System control bus
Audio Board
2-wire
analog
phone line
Phone line
echo
cancelation
Phone-add
board
(2-wire)
Keypad
Audio
bridge
VCR out
External
keypad
microphones
M
i
x
Microphone
1 2 MIC
3A
External
External
4 5 MIC
6B
Line in
7 8mic 9
Power
*
0
VCR in
C
o
n
t
r
o
l
Line out
Room
echo
cancelation
M
i
x
e
r
#
System
control
bus
External MIC A
External MIC B
Line in
Power mic
Keypad
control
Audio
compression
Audio
decompression
System control bus
Figure 1-2: Concorde•4500 System Block
Diagram
1-4
Concorde¥4500 System Block Diagram
= Option
HAP
DMA
channels
HAP4
Coder/decoder
Data Interface
Port A
Communications
Port B
Port C
Port D
CTRL A
CTRL B
Encryption
Transmit
to
channel
Decryption
Receive
from
network
Network
interface
module
Dual
CSU
System
control
System control bus
Backplane
Cartridge
interface
Software
cartridge
System
clocks
System
control
bus
DC
power
Power supply
Figure 1-2: Concorde•4500 System Block Diagram
(continued)
1-5
Electronics
Module
The electronics module is a self-contained, custom made unit that
includes the system electronics, the system software cartridge, and
the power supply. The electronics module sits in the bottom of the
WorldCart.
The Backplane, which sits on the bottom of the electronics module,
provides the signal connections for the system boards to
communicate. For more information on the electronics unit, the
Backplane, and the system boards, see Chapter 2.
Electronics module
Figure 1-3: WorldCart and the Electronics Module
The following Þgure describes the functions of the components that
make up the electronics module.
1-6
Electronics Module
Microphones
Audio Board
Audio I/O
VCR Audio
MultiBus
Audio compression PT724, G.7xx
Echo cancelation, AGC, ANS
DMA Busses
Power Mic
Phone add-on
IR Keypad
Video Board
Video I/O
Video switching, overlays, PIP I/O
Snapshot
Video I/O
PTZ Camera
Doc Camera
VCR Video
Data Interface
DTE Device
Flow control
RS 232
RS 449 and V.35
Communications
Application control
User Interface control
Communications and
Encryption control
Network Interface
SW56
V.35 with RS-366A
RS-449 with RS-366A
X.21 BRI
V.25-bis
Serial I/O
Modem
Control Port A
Control Port B
Network
Interfaces
Array Processors
H.261 video compression
SG4 video compression
SG3 video/audio compression
Figure 1-4: Concorde•4500 Functional Block Diagram
1-7
Software Cartridge
The software cartridge Þts into a pull-out tray that is located on the
back of the electronics module. This cartridge contains the
proprietary software that runs the Concorde¥4500. The following
illustration shows the software cartridge in the pull-out tray.
Software cartridge
Figure 1-5: Software Cartridge
Power Supply
The power supply plugs directly into the Backplane to supply
power to the system boards and the fans. The power supply
includes:
1-8
❑
Power switch
❑
International European Community (IEC) inlet
❑
Line Þlters
❑
Fuses (not accessible to user)
❑
Switched outlet for the monitor
❑
Ground outlet (used in Japan)
Electronics Module
The following illustration shows the power supply.
Power
supply
Figure 1-6: Power Supply
The power supply accepts either 110 volts AC (VAC) or 220 volts
VAC without using a switch or jumper. The following table
describes the acceptable minimum and maximum input voltages for
the power supply.
Table 1-1: Power Supply Input
Maximum
Voltage
Maximum InRush Current
Input Voltage
Minimum Voltage
Input voltage in
110-volt mode
85 volts root mean
square (Vrms)
132 Vrms
35 amps
Input voltage in
220-volt mode
180 Vrms
264 Vrms
(Not applicable)
The frequency range of the power supply is 47 Hertz (Hz) to 63 Hz.
1-9
FF.Y.I.
YI
The power supply is capable of operating at input voltages
of below 85 Vrms or between 132 and 180 Vrms without
damage. However, at these voltages it is possible for the
power supply to shut down.
The power supply has three output voltages which can be either
switched or nonswitched. The following table lists the available
power supply output voltages.
Table 1-2: Power Supply Output Voltages
and Currents
Output
Voltage
Minimum
Voltage
Maximum
Voltage
Minimum
Current
Maximum
Current
Output Ripple
+5 volts (V)
+4.75 V
+5.25 V
5.00 amps
50.00 amps
100 millivolts (mV)
peak-to-peak
+12 V
+11.40 V
+12.60 V
0.25 amps
7.00 amps
(Not applicable)
-12 V
-11.40 V
-12.60 V
0.25 amps
5.25 amps
(Not applicable)
FF.Y.I.
YI
If the power supply should shut down, restart it by turning
the system off and then on.
Any output can indeÞnitely withstand a short circuit without
damage or stress to the power supply. However, a short circuit
causes the power supply to shut down. When a short circuit occurs
it must be removed. By powering down the system, the AC input
voltage is recycled. When the system is powered on, normal
operation can be resumed.
1-10
Electronics Module
Fans
The electronics module uses two fans to exhaust heat from the inside
of the module. The set of two fans is enclosed in a bezel that Þts on
the front of the electronics module. Power is supplied to the fans
through the backplane from the power supply. The following
illustration shows the two fans.
Fans
Figure 1-7: Concorde•4500 Fans
FF.Y.I.
YI
Air enters the codec from the front fan enclosure and
exhausts to the rear. Do not block the fan enclosure because
it will cause the unit to overheat and act erratically.
1-11
Monitors
The Concorde¥4500 is preconÞgured to operate with one monitor;
however, a second monitor can be installed. The main monitor
displays far-end and near-end videoconferencing sites while the
second monitor is used for displaying snapshots and still images.
Monitor displays can be either 27Ó- 35 Ó(in the United States) or
29Ó - 34Ó (in Europe). They are available in the following video
interface standards:
Cameras
❑
NTSC (National Television Standards Committee)
❑
PAL (Phase Alternate Line)
The Concorde¥4500 uses the PowerCam 100 as the main camera
source. Besides this camera, you have the option of using up to three
auxiliary cameras: two pan-tilt-zoom cameras similar to the
PowerCam 100 and a document camera.
PowerCam100
The PowerCam 100 is a compact, modular, pan-tilt-zoom (PTZ)
style camera with an infrared signal receiver that enables you to
control a videoconference from the wireless keypad. The camera is
mounted on the top of the monitor and is a standard feature of the
Concorde¥4500. The PowerCam 100 is available in either NTSC or
PAL format.
Infrared signal
receiver
Figure 1-8: PowerCam 100 Camera
1-12
Cameras
The following table describes the features of the PowerCam 100.
Table 1-3: PowerCam 100 Features
Feature
Description
Field of view
66 degrees
Pan range
+/Ð 100o
Tilt range
+ 15o - 30o
Horizontal resolution
Minimum 420 lines
Zoom range
10x
Minimum illumination
7 lux
Automatic focus
6 inch (minimum) to inÞnity
Supported on optional
tripod
Mounts on a tripod that supports at
least 20 kilograms (9 pounds)
Video
Supports NTSC and PAL video
standards
Type
1/3-inch color Charge Couple
Device (CCD)
As explained in Installing the PowerCam 100, you plug the
PowerCam 100 camera into the top connector on the video board on
the back of the electronics module. This connector supports PTZ
features.
Auxiliary Camera
Auxiliary cameras can be used to show additional views of a
meeting room or scenes outside of the meeting room that the main
camera cannot capture. The pan-tilt-zoom style camera, which has
the same features as the PowerCam 100, is usually mounted on a
tripod.
1-13
Document Camera
A document camera is capable of transferring a video image of any
document from its viewing stage to the Concorde¥4500. Document
cameras can display paper or small three-dimensional objects.
Photographic slides and negatives can also be displayed when they
are lighted from a separate back lit source.
Table 1-4: Document Camera Features
Microphones
Feature
Description
Power-zoom lens
12x power zoom lens used for close-up
viewing
Power focus
Auto and manually controlled focus
allows you to zero in on your target
Horizontal and
vertical resolution
Horizontal resolution is greater than
450 lines and vertical resolution is
greater than 350 lines
Output to codec
Composite or S-Video
Input selection
Allows you to use one external piece of
equipment, such as a scanner, VCR, or
another document camera, as a
secondary input
Operating
environment
Temperature: 41o F -95o F (+5 - +35o C)
Relative humidity: 20% - 85% (no
condensation)
The Concorde¥4500 uses a PowerMic microphone, a domed circular
tabletop microphone, that connects to the back of the electronics
module.
The associated audio suite of software equalizes sound. Loud
voices, soft voices, and even whispers can be picked up and
transmitted to the far end at approximately the same volume.
1-14
Microphones
Figure 1-9: PowerMic Microphone
The following table describes the features of the PowerMic
microphone.
Table 1-5: PowerMic Features
FF.Y.I.
YI
Feature
Description
Frequency response
50 - 7000 Hz
Audio coverage
360 o
Audio levels
Maintained up to 12 feet
Daisy chaining
Up to four PowerMics can be
daisy chained, using either a
10 foot or 25-foot extension
cable.
You can have a maximum of 4 daisy-chained PowerMics.
If you are using the wired keypad and you are using more than one
PowerMic, be sure to place the Þrst microphone at least 76
centimeters (30 inches) from the keypad and as far away from the
1-15
next PowerMic as possible. This helps to avoid sound interference
with the internal microphone on the wired keypad.
If you are using the wireless keypad it does not matter where you
place the keypad in relation to the PowerMic. The wireless keypad
does not have an internal microphone like the wired keypad, so
there is no potential for sound interference.
Lapel Microphone
For individuals who choose to walk around during a
videoconference, an optional lapel microphone can be attached to
the front of your shirt or lapel.
The lapel microphone uses a 3-pin female cord plug on a 7.58 meter
(25-foot), permanently attached, miniature shielded twisted pair
cable. The lapel microphone cable uses a 3-pin male connector to
plug into the Audio board.
See Appendix B for information on pin assignments.
Tabletop Microphone
You can connect up to two additional tabletop microphones into the
electronics module as long as there are no other microphones
plugged into either of the connections on the Audio board.
The tabletop microphone uses a 3-pin female plug with a 1.2 or 7.6
meter (4 or 25-foot) detachable miniature shielded twisted-pair
cable. Like the lapel microphone, this microphone uses the same
3-pin male connector to plug into the Audio board.
See Appendix B for information on pin assignments.
Keypads
The Concorde¥4500 comes standard with a wireless keypad. An
optional QuickPad can be ordered at an additional cost. The older
wired keypad can also be used with the Concorde¥4500.
Wireless Keypad
The wireless keypad is used to communicate with the
videoconferencing system through an infrared (IR) remote
controlled signal. Using the wireless keypad, sound can be adjusted,
camera views altered, and video images sent from a camera.
1-16
Keypads
2
FAR
END
3
1
LOW BATTERY
4
BROWSE
SET
SETUP
1
ABC
DEF
2
3
?
RECEiVE
GHI
HELP
JKL
MNO
4
5
6
PQRS
TUV
WXYZ
7
8
9
0
#
CALL / ADD
VIEW
FAR END
CHOOSE
SEND
STATUS
HANG UP
A
B
AUX
AUX
SEND
SNAPSHOT
PREVIEW
MAIN
ENTER
DOC
CANCEL
VCR
RECALL
SNAPSHOT
SET
1
4
2
MUTE
3
NEAR
END
PIP
Figure 1-10: Wireless Keypad
The following table describes speciÞcations for the wireless keypad.
Table 1-6: Physical Specifications for the Wireless Keypad
Size
333 mm
(13 in.)
length
Range
15 m (50 ft.) line of sight
220o
40o
horizontal
Weight
563 grams
(1 lb., 4 oz.)
Power
Four 1.5 volt AA alkaline
batteries
vertical up from table
For more information on the wireless keypad, see the Concorde¥4500
UserÕs Guide.
QuickPad
The QuickPad is a small, wireless device that functions similarly to
the wireless keypad. Like the wireless keypad, the QuickPad uses an
IR signal to control a videoconference. The QuickPad allows more
participants in a videoconference to have some control over the
videoconference.
The QuickPad looks similar to a remote control television device.
1-17
HELP
STATUS
SETUP
PRINT
ABC
CALL/ADD
DEF
1
2
3
GHI
JKL
MNO
4
5
6
PQRS
TUV
WXYZ
7
8
9
0
#
HANG UP
CANCEL
ENTER
VIEW
FAR END
NEAR END
SNAPSHOT
PIP
VCR
SNAPSHOT
SEND
MAIN
DOC
1
2
PRESETS
SHOW ROOM
SET
ADJUST
FAR END
NEAR END
ZOOM
POINT
MUTE
VOLUME
Figure 1-11: QuickPad
The following table describes speciÞcations for the QuickPad.
Table 1-7: Physical Specifications for the QuickPad
Size
Range
Weight
209 mm
(8.2 in.) length
6 meters (20 feet) line of sight
150o horizontal
75o vertical up from table
164 grams
(7 ozs.)
Power
Four 1.5 volt AAA alkaline
batteries
70 mm
(2.75 in.) width
For more information about the QuickPad buttons and their
operation, refer to the Concorde¥4500 UserÕs Guide and the
Concorde¥4500 AdministratorÕs Guide.
1-18
Look-At-Me-Button
Wired Keypad
Although the wireless keypad is standard for the Concorde¥4500,
some users prefer the older wired keypad. The wired keypad
supports all the features on the wireless keypad except help menus
and status messages. The wired keypad has an internal microphone.
Look-At-MeButton
The Look-At-Me-Button (LAMB) is a wireless device used for
presetting camera views with a Concorde¥4500. A LAMB can be
mounted on a whiteboard or placed on a conference room table. The
LAMB allows more people in a videoconference to control the
videoconferencing session.
BA
W
LO
M
U
TE
TT
ER
Y
OW
SH OOM
R
Figure 1-12: Look-At-Me-Button
The following table describes speciÞcations for the LAMB.
Table 1-8: Physical Specifications for the LAMB
Size
Range
135 mm
(5.3 in.) length
15 meters (50 feet)
line of sight
109 mm
(4.3 in.) width
180o horizontal
+/- 20o vertical
Weight
Power
143 grams
(6.1 ozs.)
Three 1.5 volt AAA alkaline
batteries
1-19
Understanding the
Electronics Module
❑
Backplane
❑
Array Processor boards
❑
Communications board
❑
Video and Graphics daughter board
❑
Audio board
❑
Data Interface board
2
Understanding the
Electronics Module
The electronics module is a self-contained unit that includes the
system electronics, system boards, system software cartridge, and
the power supply. The electronics module sits in the bottom of the
WorldCart.
This chapter focuses mainly on the system electronics, system
boards, and data ports.
Backplane
The Backplane, which sits on the bottom of the electronics module,
provides the essential signal connections that are necessary for the
system boards to communicate. From the power supply, which
plugs into the backplane, power is distributed to the system boards
and to the fans. The backplane also carries the circuitry for
interfacing with the software cartridge and for generating the
master clocks for the system.
The Backplane accommodates eight system boards, each of which
has a speciÞc slot. Functions for the backplane are mapped into the
system memory and reside in the ninth slot.
2-1
UNDERSTANDING THE ELECTRONICS MODULE
Table 2-1: Backplane Features
Feature
Description
96-pin DIN 42612
type-C
Euroconnectors
Connects each of eight system boards
to the Backplane. Female connectors are
located on the backplane; male
connectors are on each board, which
connect perpendicular to the
backplane.
48-pin DIN 41612
type-F Euroconnector
Connects the power and ground
connections directly to the Backplane.
Euroconnector
Carries the power rail sense wires and
the TTL level signal that together
activate the courtesy outlet.
DC power
Through connector pins on the
Backplane, DC power is supplied to the
fans.
64-pin right-angle
female DIN
connector
Enables a parallel connection between
the Backplane and the software
cartridge.
Test pins
Each of the power supply voltages is
monitored to provide diagnostic test
results. See Figure 2-1.
The following illustration shows the voltage test points on the
Backplane. Using a voltage test meter, each test point can be
individually tested to see whether the board it relates to is
functioning properly.
2-2
Backplane
Slot: 8
AI
7
Empty
6
5
VI
DI
4
3
2
1
Communications Empty
Full
HAP
HAP 4
optional
Power
supply
TP1
GND
TP4
VCC
TP5
-12V
TP2
+12V
TP3
-5V
Test points
Figure 2-1: Voltage Test Points on the Backplane
FF.Y.I.
YI
If you are using an older revision of the Backplane, the test
points may be different.
2-3
The following illustration shows the system boards as they are
viewed from the rear panel of the electronics unit.
KEYPAD
CONTROLES
PAVE DE CONTR
NUMERISCHER
TASTENBLOCK
MAIN CAMERA
CAMERA PRINC
CAMERA PRINC
HAUPTKAMERA
V.35 (RS-449)
RS-449/RS-232
8
EXP AUDIO
AUDIO AMP
AUDIO AMP
ERW. AUDIO
AUX VIDEO
VIDEO AUX
VIDEO AUX
ZUS. VIDEO
A
7
PORT 1
PORT
C
CHAN
8
A
MIC A
MICRO A
MICRO A
MIKRO A
AUX GRAPHICS
GRAFICOS AUX
GRAPHIQUES AUX
ZUS. GRAFIK
B
MIC B
MICRO B
MICRO B
MIKRO B
DOC CAMERA
CAMERA DOCS
CAMERA DOC
DOK.-KAMERA
PORT
A
B
CTRL
A
DIAL
8
LINE IN
ENTRADA
ENTREE
LIETUNG EIN
VCR IN
ENTRADA VIDEO
MAGNETO ENTREE
VIDEO EIN
VCR IN
ENTRADA VIDEO
MAGNETO ENTREE
VIDEO EIN
VCR OUT
SALIDA VIDEO
MAGNETO SORTIE
VIDEO AUS
VCR OUT
SALIDA VIDEO
MAGNETO SORTIE
VIDEO AUS
LINE OUT
SALIDA
SORTIE
LIETUNG AUS
MAIN MONITOR
MONITOR PRINC
MONITEUR PRINC
HAUPTBILDSCHIRM
PHONE WALL
TELEFONO PARED
PRISE TELEPHONE
TEL.-WAND
AUV MONITOR
MONITOR AUX
MONITEUR AUX
ZUS. BILDSCHIRM
PORT 2
PORT
D
CHAN
PORT
B
P5
REMOTE
ON/OFF
CTRL
B
DIAL
A
POWER
S
OW
U I
T T
PC
UH
T E
D
B
PHONE SET
TELEFONO
TELEPHONE
TEL.-APPARAT
Slot
Board
8
6
AUDIO
5
4
VIDEO DATA INTERFACE
COMMUNICATIONS
3
2
100-120/200-240VAC
50-60HZ
I
N
P
U
T
5A RMS MAX
1
ARRAY PROCESSOR
Array Processor boards
Data Interface board
Video board
Audio board
Figure 2-2: System Boards
The following table describes the system board locations.
Table 2-2: System Board Locations
Board
2-4
Location
HAP-4 (optional)
Slot 1
HAP-8 or HAP-6
Slot 2
Backplane
Table 2-2: System Board Locations (Continued)
Board
Location
Empty
Slot 3
Communications
Slot 4
Data Interface
Slot 5
Video
Slot 6
Graphics a
Slot 7
Audio
Slot 8
Empty
Slot 9
Wired keypad
Slot 10
Camera b
Slots 11, 12, 13
a. The Graphics board is a daughter board attached to the Video board.
It shows up in Slot 7 when the system is powered-up, even though
the slot is physically empty.
b. Slots 11 and 12 are reserved for additional cameras. Slots 9-13
represent peripherals. The slot designations do not physically exist
on the backplane. They are only used for consistency of the POST
display.
FF.Y.I.
YI
When you run the power-up diagnostics, you can see the
slot number for each board in the electronics module.
Array Processor Boards
There are three types of Array Processor Boards (AP), referred to as
HAP-8, HAP-6, and HAP-4. These boards are responsible for
executing full motion video coding and decoding algorithms. The
number designation, 4, 6, or 8, represents the number of processors
on the board.
2-5
In a Concorde¥4500 there are two possible conÞgurations using the
HAP boards:
❑
A single HAP-6 or HAP-8 board with a maximum speed of
15 frames per second (fps).
❑
Both a single HAP-6 or HAP-8 board and a HAP-4 board, with a
maximum of 30 fps.
The following table describes the functions of the HAP boards.
Table 2-3: Functions of the AP Boards
Type of
system
Two board
system
Single
board
system
Name
of
board
Processors
being
used
Slot
Number(s) a
Function
HAP-6
or
HAP-8
2
Encoder
30 fps
PR0, PR1,
PR2, PR3,
PR6, PR7,
HAP-4
1
Decoder
30 fps
PR0,PR1,
PR2, PR3
HAP-6
or
HAP-8
2
Encoder
15 fps
PR0, PR1,
PR2, PR3
HAP-6
or
HAP-8
2
Decoder
15fps
PR6, PR7
Speed
Note: The HAP-8 board does not use processors PR4 and PR5.
2-6
Backplane
The following are block diagrams of the HAP-6 and HAP-4 boards.
PR0-3
multibus
address
decode
PR3
PR7
PR0-3
multibus
arbiter
PR2
PR6
Clock
and
reset
ID reg
Internal PR6-7 data bus_0
Processors 0-3 multibus address
PR0
PR4-7
multibus
arbiter
PR4-7
multibus
address
decode
PR1
Interrupt
request
register
DMA bus_1
DMA bus_0
Multibus data
Multibus address
Figure 2-3: HAP-6 Board
2-7
PR0-3
multibus
address
decode
PR3
PR0-3
multibus
arbiter
PR2
Clock
and
reset
PR0
ID reg
DMA bus_1
DMA bus_0
Multibus data
Multibus address
Figure 2-4: HAP-4 Board
2-8
PR1
Interrupt
request
register
Communications Board
Communications
Board
The Communications board (CP) is located in slot 4 on the
backplane. The Communications board supports all network
communications and loads and executes the system software that
controls the operation of the electronics module. This board also
controls all power-up and user-selectatable diagnostics.
The CP board performs the following system control functions:
❑
Controls DMA data transfers between the VI board and the
HAP boards.
❑
Coordinates coding (compression) of video, audio, and graphic
data for network transmission and decoding (decompression)
of data for the VI, AI, and graphics boards.
❑
Sends encoded (compressed) video, audio, graphic, and
transparent data for encryption, packetization, queueing, and
transmission.
❑
Receives data and coordinates depacketization and decryption
of data. Once done, the data is sent to its destination.
❑
Controls network interface dialing.
❑
Coordinates control ports A and B for data and control
application.
Control Ports A and B
The control ports A and B on the back of the Communication board
(CP) and Data Interface board (DI) support RS-232C data interfaces
at the data rates listed in the following table.
Table 2-4: Control Port Data Rates
Control Port
Interface
Data Rate (kbps)
Control Port A
RS-232C
1.2 - 9.6 async (for controlling the
Concorde¥4500)
Control Port B
RS-232C
1.2 - 9.6 async (for controlling the
Concorde¥4500)
0.3 - 38.4 async (for passing transparent data)
2-9
For the CP board, control port A is used only for controlling
the Concorde¥4500 and cannot be used to transport
transparent data.
FF.Y.I.
YI
The following illustration shows a block diagram of the
Communications board.
= Option
Control port A
Control port B
Encryption
Transmit
to
channel
Decryption
Receive
from
network
Network
interface
module
System
control
System control bus
Figure 2-5: Communications Board
The Communications board has one of Þve available network
interface modules, which are contained on a daughter board. The
daughter board attaches to the Communications board. The Þve
network interfaces are:
❑
V.25 bis
❑
V.35
❑
X.21
❑
RS-449
❑
Switched-56
For more information on these network interfaces, see Chapter 3.
2-10
Video Board
Video Board
The Video board (VI) is located in slot 6 on the backplane. This board
provides an interface to the electronics module for video
equipment.The VI board is responsible for capturing motion and
still video.
The Video board has a Graphics daughter board which is
responsible for converting and Þltering graphics video.
See Appendix C for cabling information for this board.
The VI board supports the following functions:
❑
Accepts analog video input from various video sources, such as
the PowerCam 100, document cameras, and a VCR.
❑
Digitizes and stores analog video signals in an input buffer.
❑
Accepts decompressed digital signals from the HAP board and
stores them in an output buffer.
❑
Provides graphics overlay for on-screen messages that are
displayed on the near-end monitor.
❑
Enables a preview of the near-end camera source while the farend image is displayed on the main monitor.
❑
Provides three rear camera control interface ports for pan, tilt,
and zoom control cameras, such as the PowerCam 100.
❑
Generates a digital color bar image and implements loopback
audio and video for diagnostic tests.
❑
Provides video output for a VCR to record a videoconference
and accepts video input from a VCR for use in a
videoconference.
2-11
The following illustration shows a block diagram of the VI board.
DMA bus
Camera
control
Main
camera
Aux
camera A
Video
matrix
control
Multibus DMA bus
Input
frame
store
Send
video
8x6
video
matrix
Luma
Y/C
separator
Luma
A/D
Graphics
overlay
frame
store
Output
frame
store
AVIGA
AVOGA
Luma
D/A
Far-end
video
R-Y
Chroma
decoder B-Y
Chroma
A/D
Chroma
D/A
Valid
video
detector
Aux
camera B
Composite
doc. cam.
VCR play
VCR record
Graphics
daughtercard
Aux monitor
Main pix
Sub pix
Picture
in picture
Main monitor
Color
black
generator
Figure 2-6: Video Board
Graphics Daughter Board
The Graphics daughter board is attached directly to the Video
board.
FF.Y.I.
YI
2-12
When you power on a Concorde¥4500, the Graphics
daughter board is assigned to slot 7, even though slot 7 is
physically empty.
Video Board
The Graphics daughter board performs the following functions:
❑
Lets you capture and display a still image, snapshot, or graphic.
❑
Accepts decompressed digital graphics data from the Array
Processor boards and stores the data in an output buffer.
❑
Converts digital data to analog video.
❑
Implements test patterns with the VI board.
2-13
The following illustration shows a block diagram of the Graphics
board.
Output
framestore
0
PG 4
AVIA<11:01>
Graphics
calibration
constant
EEPROM
Graphics
overlay
Output
framestore
1
PG 3
PG 6
PG 4
GAGSD<15:00>
GOFSD0<15:00>
GRAFIXCS
GRXDONE_L
GOFSD0<15:00>
GAVAIA<15:0>
AVIA<19:17>
GAVOGA
Luma
D/A
converter
LUMOUT
LDACLK_L
VGIA20_L
PG 2
CHROUT
CDACLK
5 MHZ
lowpass
(SINX/X)
PG 2
Chroma
D/A
converter
PG 2
Chroma
bandpass
filter
PG 2
PG 2
GAVAIA<15:0>
CSYNC
CSYNC
CDACLK
GAVAIA<15:0>
PG 2
LDACLKX2
LHREF_L
PG 3
SN2
filter
PG 3
PG 7
SCHREF_L
PG 7
20 MHZ
PLL
PG 2
PP 4,5,8
AVIA<16:01>
DATA_L<15:00>
DMAO<15:00>
DMAO<15:00>
GRAFIXCS
J721
PG 9
CDACLK
GRXDONE_L
J878
Interconnect to video board
PG 9
Interconnect to video board
Figure 2-7: Graphics Daughter Board
Audio Board
The Audio board (AI) is located in slot 8 on the Backplane. This
board provides an interface to the electronics module for external
audio equipment such as a VCR, the monitorÕs audio ampliÞer, and
the wired keypad.
The AI board supports an optional telephone interface daughter
board that provides an interface for a telephone line and extension
telephone. This telephone line can be used for audio-only
conferencing or to add telephone users as audio-only participants in
a videoconference.
2-14
Audio Board
The AI board also performs the following functions:
❑
Provides the interface for audio to the monitor.
❑
Controls and mixes the audio input to the keypad
microphone(s), PowerMic, optional tabletop or lapel
microphones, line-level input (from an external microphone
mixer) or a VCR.
❑
Provides acoustic echo cancelation for the combined conference
room signal and telephone line signal.
❑
Implements the conference control keypad interface for the
wired keypad.
❑
Controls and mixes the audio outputs (line out for room audio
and a VCR).
❑
Provides line echo cancelation for the telephone interface
board.
❑
Supports Automatic Noise Suppression.
❑
Supports Automatic Gain Control.
❑
Converts analog audio inputs to digital representation.
❑
Controls digital audio compression and decompression.
❑
Supports digital to analog audio conversion.
2-15
The following illustration shows a block diagram of the AI board.
Keypad
interface
and control
Keypad
I2 C
control
Local registers
DSP1610 only
Mic
input 1
PIO
Mic
input 2
Switch
Input
mixer
Line
IN
Line
OUT
SIO
DSP
1610
Bank 0
16k x 16 SRAM
Bank 1
16k x 16 SRAM
1610_Data<15..0>
Local registers
C31#1 only
Remote
loopback
VCR bypass
Audio I/O
with I2 C
interface
Stereo
codec
DSP
C31
#1
SRAM
32 K x 32
Switch
1_Data<31..0>
VCR
bypass
VCR
play/IN
VCR
record/
OUT
SIO
DSP
C31
#2
Local registers
C31#2 only
SRAM
32 K x 32
Switch
2_Data<31..0>
Interface
to POTs
daughter card
Codec;
DTMF;
POTs
control
MULTIBUS registers;
misc functions;
and DMA control
MULTIBUS buffering,
address decoding; misc
MULTIBUS
DMA interface
16-b
DMA0
16-b
DMA1
Figure 2-8: Audio Board
Telephone Interface Daughter Board
The optional telephone interface daughter board has two parts:
2-16
❑
Two-wire and four-wire network connection
❑
Port for attaching an extension telephone or an extension ringer
Audio Board
Table 2-5: Telephone Interface Board
Feature
Function
Description
Network
connection
Provides a direct
connection to the
public switched
telephone network in
the United States,
Canada, and Europe.
RJ-11 modular jack is used to
connect the interface to the
network. Also offers a loopthrough port for the
connection of a standard twowire telephone set.
Dialing interface
Facilitates connection
to the network
Uses dual-tone multiple
frequency (DTMF) method.
Extension
telephone
Used to answer an
incoming audio call
Acts as a normal telephone
when there is no audio call.
When an audio call is in
progress, the extension
telephone is disconnected from
the call. The incoming audio
call can be answered at the
extension telephone or at the
Concorde¥4500.
Answering an audio
call
Using a wired keypad Ð If an
audio call is picked up at the
extension telephone, it can be
transferred to the keypad by
pressing the Audio Call button.
This allows other participants
in the room to hear the call.
Using a wireless keypad Ð Use
the Call/Add button to transfer
an audio call to the keypad.
2-17
Table 2-5: Telephone Interface Board (Continued)
Feature
Function
Description
Extension
telephone
Disconnecting a call
Using a wired keypad Ð If a call
gets disconnected when the
Audio Call button is pressed, the
call is transferred to the
extension telephone (as long as
it is off the hook.) The light
next to the Audio Call button is
on while the audio call is in
progress.
Using a wireless keypad ÐYou
can disconnect a call by
pressing the Hang Up button. If
you have both audio and video
calls open, select the call you
want to disconnect by pressing
the up or down CHOOSE
arrow. Press Hang Up.
Extension ringer
Data Interface
Board
NotiÞes you of an
incoming video call
Rings when a call comes in.
The Data Interface (DI) board, which is located in slot 5, is
conÞgured with four data interface ports. These ports enable the
system to communicate with external devices, such as a modem or
a personal computer. The connections for the ports are located on
the back edge of the board.
The Data Interface board performs the following functions:
2-18
❑
Receives data from data terminal equipment (DTE) devices that
are connected to any of the four ports and passes the data to the
CP board for transmission on the network.
❑
Uses modem control lines or the Xon/Xoff codes to start and
stop data ßow when ßow control is enabled.
❑
Passes data received from the network to the DTE devices that
are connected to any of the four ports on the board.
Data Interface Board
❑
Loops data output signals back into the data input circuit
during a remote video-audio loopback test initiated by the
far-end system.
The Data Interface board has two RS-232C serial ports, labeled A
and B. Two additional ports, C and D, are added as a pair selected
from one of the following interface types:
❑
RS-232C (data interface)
❑
RS-449 (network interface)
❑
V.35 (network interface)
Each port can be conÞgured for asynchronous or synchronous
communication. If you choose not to conÞgure a port, you can
disable it. The following table describes the speeds at which the
ports can operate.
Table 2-6: Data Interface Port Speeds
Port
Speed
Asynchronous and
synchronous RS-232
From 0.3 - 38.4 kilobits
per second (kbps)
Asynchronous RS-449
From 0.3 - 38.4 kbps
Synchronous RS-449
Asynchronous V.35
Synchronous V.35
2-19
The following illustration shows a block diagram of the Data
Interface board.
Port: A
B
C
D
Daughter
board
Z80300
SCC
Z8030C
SCC
80186
DMAC
B
DMAC
A
Multibus
Figure 2-9: Data Interface Board
2-20
Modem Control Signals
Modem Control
Signals
The Concorde¥4500 and the control port devices use modem control
signals to communicate with each other when they want to send or
receive information. This is referred to as handshaking.
For example, when a device wants to send data to data port B on the
Concorde¥4500, the following scenario takes place:
1. The device asserts the RTS signal on pin 4.
2. The Concorde•4500 responds that it is ready to receive the data by
raising the CTS signal on pin 5.
3. When the device senses that the CTS signal is asserted, it sends the
data on pin 2, TD.
This example is simpliÞed for illustrative purposes. Usually,
additional handshaking takes place before and after data is
exchanged.
2-21
Network
Interfaces
network interface ports and
❑
Network interface information
❑
Call setup and disconnect
❑
Throughput limitations
3
Network
Interfaces
This chapter describes the types of network interfaces supported by
the Concorde¥4500. It assumes that you are fairly knowledgeable
about networks, network interfaces, channel service units (CSUs)
and other network devices that can be connected to the
Concorde¥4500.
For more information about speciÞc networks, call your network
provider. For information on setting up a network, see the PictureTel
Network Planning Guide. For information on conÞguring networks,
see the Concorde¥4500 AdministratorÕs Guide.
3-1
NETWORK INTERFACES
Concorde•4500
Network
Interfaces
Network interfaces are standards that dictate how to connect
equipment to a network and allow the equipment to transmit data
over the network.
All network equipment used with a Concorde¥4500 must conform
to ITU-T or EIA standards. Equipment using networks interfaces
other than switched-56 (four-wire 56 kbps) must conform to the
following requirements:
❑
The appropriate mechanical and electrical network interface
must be present.
❑
All clocking signals must be generated by the equipment
(driven by the network).
To use the Switched-56 network interface, the Switched-56 networks
must conform to the following standards:
❑
AT&T Technical Reference: ACCUNET switched-56 Service to
Public Switched Digital Service-Interface Advisory (TR 61330)
❑
AT&T Technical Reference: Special Access Connections to the AT&T
Network (TR 41458)
❑
Sprint Virtual Private Network (VPN)
The Concord¥4500 supports the following network interfaces:
❑
ITU-T X.21
❑
Switched-56
❑
ITU-T V.35
❑
ITU-T V.25 bis
❑
EIA RS-449
Note: The minimum Bit Error Rate for the Concorde¥4500
is 10 -6.
3-2
Concorde¥4500 Network Interfaces
The following illustration shows the back of the electronics module
and the network interface boards.
KEYPAD
CONTROLES
PAVE DE CONTR
NUMERISCHER
TASTENBLOCK
MAIN CAMERA
CAMERA PRINC
CAMERA PRINC
HAUPTKAMERA
RS-449/RS-232
8
EXP AUDIO
AUDIO AMP
AUDIO AMP
ERW. AUDIO
AUX VIDEO
VIDEO AUX
VIDEO AUX
ZUS. VIDEO
A
7
PORT
C
8
A
MIC A
MICRO A
MICRO A
MIKRO A
AUX GRAPHICS
GRAFICOS AUX
GRAPHIQUES AUX
ZUS. GRAFIK
B
MIC B
MICRO B
MICRO B
MIKRO B
DOC CAMERA
CAMERA DOCS
CAMERA DOC
DOK.-KAMERA
PORT
A
B
8
LINE IN
ENTRADA
ENTREE
LIETUNG EIN
VCR IN
ENTRADA VIDEO
MAGNETO ENTREE
VIDEO EIN
VCR IN
ENTRADA VIDEO
MAGNETO ENTREE
VIDEO EIN
VCR OUT
SALIDA VIDEO
MAGNETO SORTIE
VIDEO AUS
VCR OUT
SALIDA VIDEO
MAGNETO SORTIE
VIDEO AUS
LINE OUT
SALIDA
SORTIE
LIETUNG AUS
MAIN MONITOR
MONITOR PRINC
MONITEUR PRINC
HAUPTBILDSCHIRM
PHONE WALL
TELEFONO PARED
PRISE TELEPHONE
TEL.-WAND
AUV MONITOR
MONITOR AUX
MONITEUR AUX
ZUS. BILDSCHIRM
PORT
D
P5
REMOTE
ON/OFF
PORT
B
A
POWER
S
OW
U I
T T
PC
UH
T E
D
B
PHONE SET
TELEFONO
TELEPHONE
TEL.-APPARAT
8
6
5
4
X.21
3
4 WIRE
SW-56
2
100-120/200-240VAC
50-60HZ
I
N
P
U
T
5A RMS MAX
1
V.35 (RS-449)
PSDN
PORT 1
CTRL
A
PORT
1
DTR
DCD
RTS
CTS
TXD
P RXD
O NS
R
T
CHAN
CTRL
A
CTRL
A
DIAL
1
PRIVATE
NETWORK
RS-449
PORT 2
CHAN
CTRL
B
PORT
2
PORT 2
CTRL
B
DIAL
CTRL
B
PSDN
DTR
DCD
RTS
CTS
TXD
RXD
NS
X.21
Switched-56
V.35/RS-449
Figure 3-1: Electronics Module and Network Boards
3-3
NETWORK INTERFACES
Depending on how a network interface is set up, you can have either
a switched or a dedicated network.
❑
A switched network is one in which there is a temporary
connection between two sites for the duration of a dialed call.
❑
A dedicated network, also referred to as a nondialed network, is a
permanent connection between two sites that is on all of the
time.
X.21 Network Interface
The ITU-T network interface is widely used in Europe. The X.21
network interface board uses a DA-15P connector for each of two
channel ports to send and receive dialing signals and channel data.
The following cable guidelines must be used when connecting an
X.21 network interface board to the network:
❑
The X.21 network interface transmits data signals and operates
from 56 to 768 kbps for dialed networks and from 56 to 768
kbps for nondialed networks.
❑
For networks at 64 kbps the maximum cable length is 1,200
meters (4,000 feet).
❑
For networks at 768 kpbs the maximum cable length is 250
meters (820 feet).
❑
Use a Belden 9732 (or equivalent) cable.
❑
Provide a DA-15 female connector to mate with the male DA-15
connector on the back of the electronics module (see Appendix
B).
Note: In Enhanced Dialed mode, operation up to 768 kbps is
allocated when using IMUX equipment.
See Appendix C, ÒElectronics Module Connections,Ó for
information on the X.21 network interface panel. Also, see
Appendix B, ÒPin Assignments,Ó for information on pin
assignments.
3-4
Switched-56 Network Interface
The switched-56 network is used in the United States only.
❑
The four-wire switched-56 communication interface operates at
a data rate of 56 kbps on each channel over distances of up to
107 meters (350 feet).
❑
This network interface uses two cables with RJ-45 eight pin
connectors.
information on the Switched-56 network interface panel. See
Appendix B for information on pin assignments.
Network companies that provide CSDC switched-56 service
include:
❑
AT&T ACCUNET
❑
US Sprint VPN
❑
MCI
❑
Regional Bell companies
The CSDC switched-56 network interface connection is a four-wire
interface that uses one RJ-48S modular jack for each of the two
channels. The interface uses pulse dialing, which is included in the
four-wire CSDC interface.
The switched-56 network interface board uses green LEDs located
along the back edge of the board to indicate when a network signal
is present. An amber LED indicates that there is no signal present.
The following table describes the signal ßow between a switched-56
network interface board and the network. The signals are listed in
the order in which they appear on the back edge of the board
Table 3-1: Signal Flow for the Switched-56 Network
Interface Board
Signal
Description
Direction of Flow
CSU board <---->CP
DTR
Data terminal ready
Ñ Ñ Ñ Ñ Ñ Ñ Ñ Ñ Ñ>
DCD
Data carrier detect
<Ñ Ñ Ñ Ñ Ñ Ñ Ñ Ñ Ñ
RTS
Request to send
ÐÑ Ñ Ñ Ñ Ñ Ñ Ñ Ñ Ñ>
3-5
NETWORK INTERFACES
Table 3-1: Signal Flow for the Switched-56 Network
Interface Board (Continued)
Signal
Description
Direction of Flow
CSU board <---->CP
CTS
Clear to send
TXD
Transmit data
ÐÑ Ñ Ñ Ñ Ñ Ñ Ñ Ñ Ñ>
RXD
Receive data
NS
No signal
V.35 Network Interface
ITU-T V.35 is one of the most commonly used network interfaces in
the United States. The V.35 network interface board has two V.35
data ports which are used for connecting to switched networks.
The ITU-T V.35 network interface operates at data rates from 56 to
768 kbps.
A Concorde¥4500 conÞgured with a V.35 interface supports
integrated services digital network (ISDN) terminal adaptors and
other networking terminating equipment, such as modular
processor data modules (MPDMs). Connections to high-speed
interface boards in T1 and other multiplexers are also supported.
The following are guidelines for connecting the V.35 network
interface board to the network:
❑
Cable length must not exceed 30.5 meters (100 feet) between the
system and the network (with any bit rate).
❑
Use a Belden type 9732 cable or equivalent.
❑
Provide an M-34 male connector.
❑
Use a DC-37P connector because of its superior EMI
suppression.
PictureTel provides RS-366 cables necessary for dialing with this
network interface, as well as the two female DC-37 to M-34
conversion adapter cables for the V.35 data ports. The adapter cables
are used to send and receive data for each of the two data ports. The
adapter cables are connected to the male DC-37 connectors on the
electronics module (see Appendix B.)
3-6
information on the V.35 network interface panel.
Note: This interface does not include a provision for dialing.
However, there are one or two RS-366A ports which can
be used to pass dialing information from the
videoconferencing system to the external network
device.
RS-449 Network Interface
The EIA RS-449 network interface is widely used in the United
States. The RS-449 network interface board uses the EIA RS-449
network interface ports to transmit data signals using the EIA
RS-422 balanced line data transmission standard. The EIA-449
interface uses a DC-37P connector for each of two network interface
ports to send and receive data and implement the RS-449 balanced
signal.
The RS-449 network interface operates at data rates from 56 to 768
kilobits.
The following are additional guidelines for the EIA RS-449 interface:
FF.Y.I.
YI
❑
A balanced line data transmission method allows for
communication over distances of up to 1216 meters (4000 feet).
❑
Supports transmit and receiver byte timing.
❑
Use a Belden 9737 (or equivalent) cable.
The EIA RS-449 network interface must be used for external
encryption.
3-7
NETWORK INTERFACES
The maximum cable length depends on the data rate being used, as
shown in the following table.
Table 3-2: RS-449 Interface Maximum Cable
Lengths
Data Rate
Maximum Cable Length
100,000
1,216 meters (4,000 feet)
200,000
758 meters (2,5000 feet)
300,000
400,000
Note: This interface, like the V.35, does not include a provision
for dialing. However, there are two associated RS-366A
ports used to pass dialing information from the
videoconference system to the external network device.
information on the RS-366 A dialing ports available for the EIA
RS-449 network interface.
V.25 bis Network Interface
The ITU-T V.25 bis network interface is a Northern Telecomcompatible V.25 bis interface that is designed to be used only with
Data Units that support the Northern Telecom V.25 bis subset, such
as Model NT4X25AG.
❑
The V.25 bis network interface uses a DA-15 pin connector on
one end and a 34-pin block connector on the other end (see
Appendix B).
❑
Use a Belden type 8108 cable or equivalent cable.
information on the V.25 bis network interface panel. For information
on pin assignments, see Appendix B.
3-8
Call Setup Using Nondialed and Dialed Devices
Call Setup Using
Nondialed and
Dialed Devices
The Concorde¥4500 operates with both dialed and nondialed network
devices. Dialed network calls are placed by pressing numbers on a
keypad or keyboard, which are then passed to the telephone
company, who in turn places the call depending on the type of
hardware and network conÞguration you have.
For a videoconferencing system to pass dialing information to the
external network interface device, RS-449 and V.35 devices must
have an RS-366A dialer port(s).
Nondialed network calls can be made immediately from place to
place or device to device because there is a dedicated line between
two pieces of equipment. When a call is made, there is no dialing
involved because the line is always open. The Concorde¥4500 uses
one of the following nondialed network interfaces:
❑
RS-449
❑
V.35
❑
X.21
Call Setup Using the RS-366A Dialing Procedure
For the Concorde¥4500 videoconferencing system to make a call
using the RS-366 A dialing procedure, signals in the Concorde¥4500
dialer port and channel data port on the RS-449 or V.35 interface
board must set up the call.
3-9
NETWORK INTERFACES
Figure 3-2, part 1 and part 2, and illustrate the sequence of events
involved in establishing dialed calls using the RS-366A dialing
protocol.
Note: See Appendix B for the RS-366A pin assignments.
Start
Dialing command received
from the keypad.
Concorde•4500 checks that PWI
is on and that PND, ACR,
DCS, and DLO are off.
Conditions met?
Concorde•4500 lowers CRQ,
TR, and RS and sends
“Unable to dial” message
to monitor.
No
PND active?
Yes
Concorde•4500 asserts CRQ,
TR, and RS.
No*
Yes
Concorde•4500 lowers DPR
DLO active?
No*
All digits and
EON sent?
Yes
Yes
PND active?
No*
1
Yes
Concorde•4500 places digit (or EON
in case of all phone digits sent) on
NB1, NB2, NB3, NB4. When all digit
signals present, Concorde•4500
asserts DPR.
Figure 3-2: RS-366A Call Setup (Part 1)
3-10
No*
Call Setup Using Nondialed and Dialed Devices
1
ACR present
No
DSC present?
Yes
Yes
Concorde•4500 lowers CRQ,
TR, and RS and sends
“Call not completed”
message to monitor.
No*
Concorde•4500 lowers CRQ
and checks for RR and
CTS from CSU
Start
RR and CS
present?
No*
Yes
Network call complete
Figure 3-2: RS-366A Call Setup (Part 2)
*Timeouts apply.
Table 3-3 lists the timeout values used by the Concorde¥4500 at the
various synchronization points in the RS-366A dialing protocol.
These values refer to the amount of time the Concorde¥4500 waits
for the indicated CSU event before abandoning a call. If a call cannot
be made, the monitor displays the message Unable to Dial.
3-11
NETWORK INTERFACES
Table 3-3: Timeout Values
CSU Event
V.35, RS-449, and
Switched-56 Call
Setup with Auto
Answering
Timeout
System waits for the Preset Next Digit (PND) signal
to be active after asserting the Call Request (CRQ)
signal.
4 seconds
System waits for the (PND) signal to be inactive
after asserting the Data Port Ready (DPR) signal.
2 seconds
System waits for the PND signal to be active after
deasserting the DPR signal.
2 seconds
System waits for either the Abandon Call and Retry
(ACR) or the Data Set Ready (DSR) signal after the
last digit is sent.
no timeout
System waits for both the Clear to Send (CTS) and
the Receiver Ready (RR) signals after receiving the
DSR signal from the Channel Service Unit (CSU).
30 seconds
To make a call, the Concorde¥4500 can operate with both dialed and
nondialed networks. Using a dialed network, the videoconferencing
system must dial the connecting number. Using a nondialed network,
the call can be made immediately because the line is always open.
Dialed Call Setup with Auto Answering
The Request to Send (RTS) and Data Terminal Ready (DTR) signals
are always asserted when the Concorde¥4500 is set for a dialed
network while in Auto Answer mode.
As soon as the network equipment detects the ring signal from the
network, it answers the call and asserts the RR and CTS signals to
the Concorde¥4500. The call is complete when the Concorde¥4500
detects the RR and CTS signals as active and completes any
necessary call setup exchange with the far end.
3-12
Call Setup with Manual Answering
Nondialed Call Setup with Auto Answering
The RS and TR signals are always asserted when the Concorde¥4500
is in PictureTel Ready mode and is set for a nondialed modem in
Auto Answer mode.
When the TA detects the data signals from the network, it passes
them to the Concorde¥4500 and the call is complete.
Call Setup with
Manual
Answering
The Request to Send (RTS) signal is always asserted when the
Concorde¥4500 is set for a dialed modem in Manual Answer mode.
As soon as the CSU detects the ring signal from the network, it
asserts the RI (ITU-T V.35) or IC (EIA RS-449) signal to the Concorde
4500.
The Concorde¥4500 rings a bell or buzzer. The Concorde¥4500 also
sends the Incoming call message to the monitor if on-screen messages
are enabled.
When the user answers the call (by pressing the Call/Add button), the
Concorde¥4500 asserts the TR signal and then waits for the RR and
CTS signals from the CSU.
When the Concorde¥4500 detects that the RR and CTS signals are
asserted, the call is complete.
V.35, RS-449, and
Switched-56 Call
Disconnect
The call disconnect process begins when someone terminates a
videoconference by pressing a HANG UP button (or similar button)
on the keypad. The videoconferencing systems exchange
information indicating that the call is being disconnected. The
monitor displays the message Call disconnected: near end / far end.
❑
For nondialed calls, the videoconferencing systems stop
exchanging data, deassert the RS signal, and disconnect the
call.
❑
For dialed calls, the disconnect process proceeds at the hardware
level. The protocol used for disconnecting depends on whether
the call was disconnected from the near end or the far end.
3-13
NETWORK INTERFACES
When a dialed call is disconnected from the near end:
❑
The Concorde¥4500 deasserts the TR and RS signals.
❑
The CSU deasserts the RR and CS signals.
❑
Then the call disconnect is complete.
When a dialed call is disconnected from the far-end:
X.21 Call Setup
and Disconnect
FF.Y.I.
YI
❑
The CSU deasserts the RR and CS signals.
❑
The Concorde¥4500 deasserts the TR and RS signals.
❑
Then the call disconnect is complete.
This section describes the call setup and disconnect processes used
when the Concorde¥4500 has an X.21 network interface.
For the X.21 interface, there are two types of signals: control
signals and data signals. Control signals can be either in the
on or in the off state. Asserting places the signal into the on
state, and deasserting places the signal into the off state.
Data signals carry data and consist of strings of binary ones
and zeros.
Placing a Dialed Call with X.21 Data Circuit-Terminating
Equipment (DCE)
This section describes the sequence of events that occurs when the
Concorde¥4500 initiates a dialed call and later disconnects the call.
1. The Concorde•4500 notifies the DCE (network) that it wants to make a
call by asserting its C signal and placing binary 0 on its T signal.
2. The DCE responds by sending at least two SYN characters followed by
a string of + characters on the R signal. This response signals the
Concorde•4500 to send the selection (dialing) information.
3. The Concorde•4500 sends the selection information, which consists of
at least two SYN characters followed by a string of IA5 (international
character set) characters and terminated with a + character. The IA5
characters provide the dialing information.
3-14
X.21 Call Setup and Disconnect
4. When the DCE detects the + character from the Concorde•4500, it
stops sending + characters to the Concorde•4500 and starts dialing the
number requested, and may send call progress signals to the
Concorde•4500. Call progress information identifies events such as
dialing and ringing.
5. The DCE follows the call progress information with information that can
indicate details such as charges, date and time, and type of call.
6. When the connection is established, the DCE asserts (on) the I signal,
thus notifying the Concorde•4500 that the DCE is ready to transfer data.
Both the Concorde•4500 and the DCE transfer their data.
7. The Concorde•4500 indicates a clear request to the DCE by
deasserting its C signal and placing binary 0 on its T signal. The DCE
confirms the clear request by deasserting its I signal and placing binary
0 on its R signal. Then the Concorde•4500 and the DCE return to the
Ready state by setting the T and R signals to binary 1.
The following illustration describes what takes place when a dialed
call is placed using the X.21 network interface.
3-15
NETWORK INTERFACES
Off
0
On
Call
request
Clear
request
Data
+
IA5
SYN
SYN
Selection
signal
1
0
Ready
Data
Transmit
Figure 3-3: X.21 Dialed Outgoing Call
3-16
Data
SYN
SYN
SYN
IA5
SYN
.
.
.
+
+.
SYN
SYN
Off
SYN
Indication
On
DCE
Call
Progress provided
signals
information Waiting
1
Receive
Control
Signals from the Concorde
Clear
confirmation
Ready for
data
Proceed to
select
Transmit
Signals from the DCE
Connection
in progress
Ready
Receiving a Dialed Call from an X.21 DCE
far-end videoconferencing system and the DCE initiate a dialed call
and later disconnect the call.
1. When the DCE detects an incoming call, it notifies the Concorde 4500
by sending at least two SYN characters followed by a string of BEL
characters on the R signal.
2. When the Concorde•4500 answers, it asserts the C signal. The
Concorde•4500 answers automatically or manually, depending on
whether it is in Auto Answer or Manual Answer mode.
3. When the DCE detects that the Concorde•4500 has answered, the DCE
may send DCE-provided information that can indicate details such as
charges, date, time, and the type of call.
4. When the connection is established, the DCE notifies the
Concorde•4500 that the DCE is ready to transfer data by setting the R
signal to binary 1 and asserting its I signal. Both the Concorde• 4500
and the DCE begin transferring their data.
5. When the DCE detects that the far end is disconnecting, the DCE sends
a clear indication by deasserting its I signal and placing binary 0 on its
R signal. The Concorde•4500 responds by deasserting its C signal and
placing binary 0 on its T signal.
6. The DCE and the Concorde•4500 return to the Ready state by placing
binary 1 on the T and R signals.
FF.Y.I.
YI
In Auto Answer mode, the Concorde¥4500 automatically
answers a call within 500 milliseconds. In Manual Answer
mode, a call is answered when it receives a signal from the
keyboard.
3-17
NETWORK INTERFACES
Off
On
Data
SYN
SYN
SYN
IA5
SYN
BEL
SYN
.
.
.
.
BEL
SYN
Off
SYN
Indication
0
On
1
Receive
Ready
Data
0
1
Clear
confirmation
Data
Transmit
Figure 3-4: X.21 Dialed Incoming Call
3-18
Clear
Indication
DCE
provided
information
Incoming
call
Control
Ready for
data
Call
accepted
Transmit
Connection
in progress
Ready
Placing a Nondialed Call with an X.21 DCE
This section describes the sequence of events that occurs when
the Concorde¥4500 initiates a nondialed call and later disconnects
the call.
1. The Concorde•4500 starts the call by transmitting data and asserting its
C signal.
2. When the far end answers and begins sending data, the DCE responds
by asserting its I signal and placing the far-end data on the R signal to
the Concorde•4500.
3. The Concorde•4500 disconnects the call by setting the T signal to
binary 1 and deasserting its C signal.
Off
Data
Data
Indication
On
1
0
Off
On
1
Call
requested
0
Receive
Control
Transmit
4. When the far end responds to the loss of data by disconnecting, the
DCE returns to the Ready state by placing binary 1 on its R signal and
deasserting its I signal.
Ready
Ready
Figure 3-5: X.21 Nondialed Outgoing Call
3-19
NETWORK INTERFACES
Receiving a Nondialed Call from an X.21 DCE
Concorde¥4500 automatically answers an incoming nondialed call.
1. When the Concorde•4500 detects incoming data from the far-end, it
answers immediately, asserts the I signal, and places data on the R
signal.
2. The Concorde•4500 responds by transmitting data on the T signal and
asserting the C signal. The connection is complete, and data transfer
continues until the call disconnects.
3. The far end disconnects the call by ending the flow of data. The nearend CSU responds by placing binary 1 on the R signal and deasserting
the I signal.
4. The Concorde•4500 detects the state of the R and I signals and returns
to the Ready state by placing binary 1 on the T signal and deasserting
the C signal.
3-20
Off
On
Data
1
0
Off
On
Receive
data
Ready
Data
1
0
Control
Transmit
Receive
Indication
V.25 bis Call Setup and Disconnect
Data
transmit
Ready
Send
data
Figure 3-6: X.21 Nondialed Incoming Call
V.25 bis Call
Setup and
Disconnect
This section describes the call setup and disconnect processes used
when the Concorde¥4500 has a V.25 bis network interface.
3-21
NETWORK INTERFACES
Placing a Dialed Call with a V.25 bis Interface
Concorde¥4500 initiates a dialed call and later disconnects the call.
1. The Concorde•4500 notifies the data unit that it wants to make a call by
asserting the DTR signal.
2. The data unit responds by asserting the CTS signal.
3. The Concorde•4500 sends the CRN + digits (telephone number).
4. The data unit deasserts the CTS signal.
5. When the far end answers, the data unit asserts the DSR signal. This
notifies the Concorde•4500 that the connection is established.
6. The data transfer phase begins; both the Concorde•4500 and the data
unit transfer their data.
7. The Concorde•4500 drops (or terminates) the call by deasserting the
DTR signal.
3-22
DTE - DCE
dialog
Data
Data
T-link
sync
0
1 On Off On
Off
Call
connected
On
Data
transfer
DTE
dropping
call
Data
SYN
ETX
Digits
*#
N
SYN
SYN
STX
C
R
1
DTE
ready
0
DTR
Transmit
Off
Receive
Indication
CTS
Dialing
command
CRN + digits
Figure 3-7: V.25 bis Dialed Outgoing Call
Receiving a Dialed Call from a V.25 bis Data Unit
far-end videoconferencing system initiates a dialed call and the near
end later disconnects the call.
1. The data unit sends an incoming call message (INC) to the
Concorde•4500.
2. The Concorde•4500 responds by sending the connect incoming call
(CIC) message to the data unit.
3. The data unit deasserts the CTS signal.
3-23
NETWORK INTERFACES
4. When the connection is established, the data unit asserts the DSR
signal.
Off
1 On Off On
Data
Data
C
ETX
SYN
SYN
STX
C
I
0
T-link
sync
Data
transfer
ETX
SYN
C
SYN
SYN
STX
C
I
Data
On
Incoming
call
1
0
DTR
Transmit
Off
Receive
Indication
CTS
6. When the far end disconnects, the data unit deasserts the DSR signal.
Connect incoming call
Figure 3-8: V.25 bis Dialed Incoming Call
3-24
Dialing from a V.25 bis Data Unit Keypad
This section describes the sequence of events that occurs during V.25
bis dialing from the data unit keypad.
1. When dialing is complete and the connection is established, the data
unit asserts the DSR signal.
Off
Off On
Data
1 On
0
On
Data
1
0
DTR
Transmit
Off
Receive
Indication
CTS
3. If the far end disconnects, the data unit deasserts the DSR signal.
Figure 3-9: V.25 bis Dialing from the Data Unit Keypad
3-25
NETWORK INTERFACES
Throughput
Limitations
The Concorde¥4500 functions as a multiplexer by using some of the
channel transmission bandwidth to carry the control port
information from one videoconferencing system to another. When
data is being transmitted, less bandwidth is available for video and
audio transmission. For this reason, ßow control should be used
whenever possible.
Since the Concorde¥4500 operates at channel bandwidths of 56 to
768 kbps, there are limitations on the aggregate data port
bandwidth.
Table 3-4 lists the recommended bandwidth limitations for the
channel and the control ports.
Table 3-4: Bandwidth Limitations
Network
Interface
RS-232
Channel
(Not applicable)
Control Port
1.2 - 9.6 async (A)
0.3 - 38.4 (B)
RS-449
1.2 - 768 kbps
(Not applicable)
V.25 bis
1.2 - 64 kbps (dialed)
(Not applicable)
V.35
1.2 - 768 kbps
(Not applicable)
X.21
1.2 - 768 kbps (nondialed)
(Not applicable)
1.2 - 768 (enhanced dialed)
1.2 - 64 kbps (dialed)
FF.Y.I.
YI
3-26
If you are using the H.320 protocol, the data rate must be in
multiples of 56 or 64 kbps.
Troubleshooting
This chapter provides technical tips and
describes how to
❑
Verify power-on
❑
Isolate and solve problems
❑
Interpret warning messages
❑
Verify electrical current
❑
Understand loopback tests
4
Troubleshooting
Using the procedures in this chapter, you can monitor system
functionality, discover where a problem exists, and initiate recovery
procedures to maintain the Concorde¥4500 and keep it running at
peak performance.
You will also Þnd background information explaining the various
types of loopback tests. For information on how to perform these
tests, see the Concorde¥4500 AdministratorÕs Guide.
Safety
Requirements
Before beginning any maintenance procedure, read this information
carefully and follow these guidelines whenever you are servicing
the Concorde¥4500.
A caution indicates an operating practice or procedure that you must
follow correctly to prevent damage to or destruction of equipment.
The Concorde¥4500 cautions are listed below.
4-1
TROUBLESHOOTING
Cautions
Wear a grounded wrist strap when you remove a board.
Wrist straps help prevent static electricity from damaging
sensitive chips.
Do not install substitute parts or modify or customize the
system.
Take care that nothing obstructs air ßow in and around the
electronics module.
Take care that small items do not fall into the electronics
module.
A warning indicates an operating practice or procedure that you
must follow correctly to prevent personal injury or loss of life. The
Concorde¥4500 warnings are listed below.
Warning
Before you remove the electronics module cover, make sure
you disconnect the AC power cable to the system. When
you are instructed to plug in the system power cord, make
sure that the electronics module is properly connected to an
electrical ground and the cable is plugged into an approved,
three-contact electrical outlet.
Required Tools
and Test
Equipment
You need the following tools to service a Concorde¥4500:
❑
Phillips screwdriver
❑
Grounded wrist strap
You should use a Volt ohmmeter to service a Concorde¥4500.
4-2
Diagnostic Procedures
Diagnostic
Procedures
The Concorde¥4500 system has three levels of diagnostic
procedures:
Type of Test
When Test Runs
System power-on self-tests
Automatically when the system
is powered on
Board-level tests
When you choose Run Automatic
Self-Test from the Near-End Tests
menu
Run-time and loopback tests
When you choose speciÞc tests
from the Near-End Tests menu or
the Far-End Tests menu
4-3
TROUBLESHOOTING
You can also run remote diagnostic tests (by entering remote
diagnostics mode), without traveling to a customer site. By
initiating the tests along with your customer at the customer site, the
test program can reboot the customerÕs system and send data back
through an external modem to a PC at your site, where you can
quickly analyze the data.
Refer to Chapter 3, ÒUsing the Diagnostic Menus,Ó in the
Concorde¥4500 AdministratorÕs Guide, for instructions on running any
of the diagnostic tests, including information on how to enter the
remote diagnostics mode mentioned above.
Verifying
Power-On
The power-on self-tests check the hardware and verify the presence
of system boards, cameras, and the wired keypad.
TI
P
If the system does not power on, if you see no video, or if
you hear no audio, refer to ÒBasic Troubleshooting
ProceduresÓ on page 4-6.
Pass-Fail Status
When a test cycle for a board completes, a PASS or FAIL status
message appears next to the board on the screen listing. If a board
fails a test, the remaining tests in the cycle for that board are then
abandoned, and the diagnostics continue with the next board test
cycle in an attempt to power on the system. After all of the boards
have been tested, if any of the boards failed, a message appears
asking you to press any key to continue system startup.
In addition, if a test or tests fail, the red LED on the failed board is lit
instead of the green LED.
FF.Y.I.
YI
4-4
When you run the power-on self test you can see the slot
number for each board listed next to the board name.
Verifying Power-On
Fault Log
If the system fails during normal operation, the software updates
the fault log. The fault log contains a history of system failures and
fault codes which identify the failing components. The fault codes
are grouped into ranges corresponding to the various components
described in the following table.
Table 4-1: System Fault Codes
Fault Code
Description
0000 through 3FFF
Communications board (CP)
4000 through 4FFF
Dual board failure. The last two digits
in the fault code indicate the failing
boards:
8 = HAP4
9 = HAP8
B = Video
C = Graphics daughter board
D = Audio
5000 through 5FFF
Software cartridge/Backplane
6000 through 6FFF
7000 through 7FFF
Data Interface board (DI)
8000 through 8FFF
Array Processor board (HAP)
9000 through 9FFF
Array Processor board
A000 through AFFF
Array Processor board
B000 through BFFF
Video board (VI)
C000 through CFFF
Graphics Daughter board
D000 through DFFF
Audio board (AI)
FFFF
Software change
4-5
TROUBLESHOOTING
TI
P
When a fault code appears, it does not always mean that
something is seriously wrong. Try rebooting the system if
you receive a fault code. This may correct the problem.
Board Replacements
If a power-on self-test fails after you have rebooted the system and
continues to indicate that a board is not functioning properly, you
should try reseating the board. If the board still fails to respond you
should replace the failing board.
Basic
Troubleshooting
Procedures
4-6
This section tells you how to troubleshoot these problems:
❑
No system power
❑
No video to monitor
❑
No audio
❑
Network or communications failure
❑
Peripheral failure
Basic Troubleshooting Procedures
No System Power
The following table summarizes the corrective actions that you can
follow if your system appears not to have power.
Table 4-2: No System Power Checklist
If you have these
symptoms...
The green LED on the power
supply is not lit.
The fans are not rotating.
No board LEDs are lit.
Do this...
1. Make sure that power is available to the facility and that the
circuit breakers supplying power to the system are not
tripped.
2. Make sure that the system power cable is plugged securely
into the wall outlet and into the electronics module.
3. Make sure that the line conditioner or noise suppressor
outlet is turned on, if your system plugs into one instead of
into a wall outlet.
4. Make sure that the main power switch is pressed to 1 (on).
If your Concorde¥4500 system is installed in the
WorldCart, make sure that the electronics module and
WorldCart power switches are pressed to 1 (on).
4-7
TROUBLESHOOTING
The power-on procedure is illustrated in the following Þgure.
Power on
Load
software
(POST)
Courtesy
outlet
clicks on
Yes
Print message
“Hit any key to
continue”
Fail
Fault
count <7
No
On-screen
(POST)
Display
“Maximum fault
count exceeded”
Display
PictureTel
logo
Halt
Print “System
initializing”
message
Display and
log fault
codes
Initialize
system
Failure
detected
Yes
No
Remove message
“System initializing”
All red
lights off
All green
LEDs on
System
operational
Figure 4-1: System Power-On Procedure
4-8
No Display on the Monitor
follow if your monitor displays no image.
Table 4-3: No Display on the Monitor Checklist
If you have these
symptoms...
No video image.
Do this...
1. Make sure that your system is not in standby mode by
pressing the VIEW FAR END button on the keypad.
If your system is in standby mode, pressing this button
makes the video image reappear.
2. Make sure that the power switches for the monitor,
electronics module, and cart are pressed to 1 (on).
3. Verify that you have selected a source that is connected and
powered-on for video display.
4. Make sure that ON/STANDBY on the monitor is pressed in.
5. Make sure that the power cable from the electronics module
to the monitor is securely plugged in.
6. Make sure that the video cable from the Video board to the
monitor is securely plugged in.
7. Make sure that the monitor is set to Video 1 or Ext 1 video
mode.
8. Isolate the problem by connecting an RCA cable from the
camera module directly to the monitor:
❑
If the monitor displays video, the problem is in the
electronics module.
❑
If the monitor does not display video, the problem is
with the camera module, monitor, or cable.
9. Isolate the problem to the camera module by having the farend site call you and report if they see the image from your
video source.
4-9
TROUBLESHOOTING
Table 4-3: No Display on the Monitor Checklist (Continued)
If you have these
symptoms...
No PictureTel Ready message
on the screen; the screen is
blank.
Do this...
10. Check to be sure the input cables on the back of the monitor
match.
The Video input 1 cable must be plugged into the Video
input 1 connector on the back of the monitor.
11. Check to be sure the monitor has only one video source.
No other video input port on the monitor should have
anything connected to it.
4-10
No Audio
follow if you have no audio.
Table 4-4: No Audio Checklist
If you have these
symptoms...
No system sound.
A video image is displayed
on the monitor.
Do this...
1. If the far-end keypad is a wired keypad, make sure that the
INT MIC switch on the back side of the keypad is set to ON.
2. Make sure all microphone inputs at the far end are
connected.
3. Check to see if the far end is muted.
4. Press the volume up/down button on the keypad.
5. Check the monitor volume.
6. Make sure that the Bose speaker cables are securely
connected to the electronics module. (This includes the
audio input and the power cable.)
7. Isolate the problem by performing a local channel loopback
test or a video-audio loopback test at both sites.
If no audio is heard at one of the sites the problem is at
that site.
8. Perform the Video-Audio Test Pattern at the failing site.
If you do not hear the tone, you may have a defective Audio
board. If you do hear the tone, you may have a defective
microphone.
The far end cannot hear you.
1. Check to be sure that the PowerMic and any additional
microphones are plugged in and enabled.
The PowerMic may be enabled and plugged in but the
additional microphones may be disabled.
2. Check to see that you are not muted.
3. Check to see if the far end is muted.
4-11
TROUBLESHOOTING
Table 4-4: No Audio Checklist (Continued)
If you have these
symptoms...
Echoing from the
microphones
Do this...
1. Make sure that the microphones are not placed directly in
front of or next to the speaker at both sites.
2. Try to isolate the problem to a single site. Perform a local
Channel Loopback test at both sites. If echo is heard at one
site then that site is the source of the problem.
3. Make sure that IDEC is enabled at each site. Check the IDEC
setting in the Audio Configuration menus.
4. Try moving the PowerMics further away from the speaker,
and then perform a Local Channel Loopback test. During the
test, talk continuously in a normal voice and walk slowly
around the PowerMics until a full circle has ben completed.
This procedure will train the PowerMic and IDEC
systems. After completing the procedure check for echo. If
it still exists, then there may be a faulty PowerMic or
Audio Interface board.
4-12
Network or Communications Failure
This table summarizes the corrective actions that you can follow if
you have network or communications failures.
Table 4-5: Network or Communications Failure Checklist
If you get
this
message...
No Channel
Connection
Type of
network
interface
V.35,
RS-449, X.21,
V.25 bis,
Switched-56,
nondialed
It means...
There may be a
problem with
the network,
Communications
board or the
cables. The
system is not
receiving clock
signals from the
DCE.
Do this...
1. Make sure that all network
connections to the electronics
module are securely attached.
2. Perform a local channel loopback
test: This test checks the audio,
video, and CP boards.
❑
If the test fails, and you know
that the audio and video
boards are working correctly,
you may need to replace the
CP board.
❑
If the test is successful,
continue with the next step.
3. Perform a local loopback test from
the near-end DCE to the
electronics module:
❑
If the test fails, continue with
step 4.
❑
If the test is successful, call
the network provider.
4-13
TROUBLESHOOTING
Table 4-5: Network or Communications Failure Checklist (Continued)
If you get
this
message...
Type of
network
interface
It means...
Do this...
4. Replace the network data cables
between the electronics module
and the DCE, and redo the local
loopback of the near-end DCE:
(continued)
No Channel
Connection
❑
If the test fails, replace the
DCE and go to step5.
❑
If the test is successful, then
it indicates that the original
cabling was at fault. Try to
make a call using the new
cables.
5. Perform another local channel
loopback test at the DCE.
No Channel
Connection
Network Not
Ready
Switched-56,
dialed
There may be a
problem in the
electronics
module.
Network Not Ready
may indicate a
problem with
the network or
with the cables.
4-14
❑
If the test fails, replace the
Communications Processor
board.
❑
If the test is successful, try
placing normal calls with the
new DCE.
1. Make sure that all network
connections to the electronics
module are securely attached.
2. Check the LEDs on the back of the
Communications board and make
sure that the DTR and DCD LEDs
for both ports are lighted and that
all other LEDs are out, as for a
normal idle condition.
Table 4-5: Network or Communications Failure Checklist (Continued)
If you get
this
message...
(continued)
No Channel
Connection
Type of
network
interface
It means...
Do this...
❑
If the NS LED is on for either
or both ports, this indicates
that the CSUs are not seeing
- 48 volts on the receive pair.
Continue with step 3.
❑
If the LEDs are in normal idle
condition, call the network
provider. If the provider
indicates that the network is
operational, try replacing the
Communications Processor
board.
Network Not
Ready
3. Disconnect the network cable
from the electronics module and
check pins 7 and 8 of RJ-48S with
respect to earth ground for - 48
volts.
If the check fails:
❑
Check the same pins at the
wall jack. If this check is
successful, replace the
cable(s).
❑
Perform the check at the
network providerÕs
demarcation point
(DEMARC). If the check is
successful, repair the wiring
between the wall jack and
the DEMARC.
❑
If your network is still not
ready, call the network
provider.
4-15
TROUBLESHOOTING
Peripheral Failure
This table summarizes the corrective actions that you can follow if
you have peripheral failures.
Table 4-6: Peripheral Failure Checklist
If you have these
symptoms...
No video and/or no camera
motion from your auxiliary
pan-tilt-zoom (PTZ) camera
Do this...
1. Press PREVIEW for the AUX A or B video source.
2. Make sure that the cables at the back of the camera are
securely connected.
3. Make sure that the cables from the camera to the back of the
Video board are correctly and securely connected.
4. Make sure that the camera is functioning properly by
connecting an RCA cable from the camera directly to the
monitor. Do not disconnect the 8-pin cable.
4-16
❑
If video is displayed, continue with step 6.
❑
If no video is displayed, power off the Concorde¥4500
and then repower it. Let the system initialize. If video
is displayed, check PTZ operation by previewing the
camera and attempting PTZ control. If PTZ control is
successful, then stop.
❑
If PTZ control is unsuccessful, remove the RCA cable.
Select Display Software Version from the Diagnostics
menu. Check for a valid software version, (5.0 or
greater) display for this camera. If an invalid version
or nothing is displayed for this camera then replace
the camera.
Table 4-6: Peripheral Failure Checklist (Continued)
If you have these
symptoms...
No video and/or no camera
motion from your auxiliary
pan-tilt-zoom (PTZ) camera
(Continued)
Do this...
5. Change the camera cable connection to the Video board:
Note: If you are using an older style PTZ camera, and a
wireless keypad, step 5 will not work.
a. Disconnect the cable from the AUX camera connection
on the Video board.
b. Plug the cable into the MAIN camera connection in place
of the main (room) camera.
c. Reboot the system.
d. Press PREVIEW MAIN on the keypad.
❑
If video is displayed, and PTZ operation is restored,
replace the Video board.
❑
If no video is displayed, continue with step 6.
6. Unplug the cables from the auxiliary camera while
maintaining their connection to the Video board, and plug
them into the main camera. Reboot the system and then
PREVIEW the camera.
No video from the document
camera or from the slide
Þlm-to-video camera
❑
If video is displayed, replace the auxiliary camera.
❑
If no video is displayed, replace the cable, and repeat
this procedure.
1. Make sure that the cables at the back of the camera are
securely connected.
2. Make sure that the cables from the camera to the back of the
Video board are correctly and securely connected.
3. Make sure the cameras are powered on.
Note: To use more than one connection on the document
camera, only the BNC/RCA connectors can be
used.
4-17
TROUBLESHOOTING
If you have these
symptoms...
No audio or video from the
VCR
Do this...
1. Make sure that the VCR tape has both audio and video on it.
2. Make sure the VCR is selected as either a SEND source or a
PREVIEW source.
3. Disconnect the VCR cables from the electronics module,
and plug them directly into the monitor.
4. If no video and/or audio is present, replace the VCR,
because it is not functioning.
5. If video and/or audio is present, reconnect the VCR to the
electronics module and check the VCR to see if it is set for
LINE LEVEL input.
Main monitor will not turn
off
Check to be sure the main monitor is plugged into the power
supply.
❑
Auxiliary monitor will not
turn on
Check to be sure the auxiliary monitor is plugged into the
power strip.
❑
4-18
If the main monitor is not plugged into the power
supply, it will not turn off when the system goes into
sleep mode.
If you have an auxiliary monitor, it should be plugged
into a power strip and turned off manually.
If you have these
symptoms...
System not responding to
wireless keypad keystrokes
Do this...
1. Hold the keypad up to the camera and then watch yourself
in the PIP. You should be able to see IR flashes when you
press a keypad key. Try moving the camera around and
press any key to see if the keypad responds. There could
possibly be a problem with the IR signal.
If the keypad does not respond, try turning out the lights
in the room or closing the drapes. Because the IR signal is
sensitive to light, the lighting in the room could be
affecting the keypad.
2. Check the DIP switch settings.
For information on how to set the DIP switch settings, see
Figure 4-2.
3. Make sure that the LOW BATTERY indicator on the keypad
is not flashing.
If the LOW BATTERY indicator is ßashing, change the
batteries in the keypad. See Installing the Wireless Keypad
for more information.
4. Press the HELP button on the keypad, and then try pressing
other keys to see if the system responds. If there is no
response then replace the wireless keypad.
4-19
TROUBLESHOOTING
The following illustration shows you how to set the DIP switch
settings and tells you what the correct DIP switch settings should be
on the wireless keypad. For more information, see Installing the
Wireless Keypad.
ON
0
1 2 3
ON
1
1 2 3
1 2
3
ON
2
1 2 3
ON
OFF
3
1 2 3
ON
4
1 2 3
ON
5
1 2 3
ON
6
1 2 3
ON
1 2 3
Figure 4-2: DIP Switches for Wireless Keypad
Note: There are no DIP switch settings on the QuickPad.
4-20
7
Warning Messages
Warning
Messages
The following table lists the system warning messages in
alphabetical order and gives a probable cause and your recovery
action, when needed. You see these messages on the screen
preceded by Warning.
FF.Y.I.
YI
You can Þnd a listing of all system messages in Appendix D
of the Concorde¥4500 AdministratorÕs Guide.
Table 4-7: System Warning Messages
If you see...
Data rate too high
It means...
Do this...
There is a network problem.
1. Verify that all connections
and cabling are secure.
Data rate too low
2. Call the network provider.
Loss of far-end video
No video is received from
the far-end site.
1. Verify that the far-end site
is sending a valid video
source.
and cabling at the far-end
site are secure.
3. Run video loopback
diagnostic tests on the farend video.
4. Replace the far-end Video
board, if indicated by the
test.
4-21
TROUBLESHOOTING
Table 4-7: System Warning Messages (Continued)
If you see...
No channel connection
It means...
Do this...
Connection to the network
interface equipment has been
lost.
2. Verify performance of the
with its daughter board.
3. Replace the board, if
indicated, or, if the board
tests are acceptable, call
For additional information,
refer to Table 4-5.
Network Not Ready
The network is signaling that
it is temporarily unavailable.
2. Verify performance of the
with the CSU daughter
board.
3. Replace the board, if
indicated, or, if the board
tests are acceptable, call
refer to Table 4-5.
4-22
Warning Messages
Table 4-7: System Warning Messages (Continued)
If you see...
No video input
It means...
Video input is not being
received.
Do this...
1. Change the video input
source on the keypad.
3. Run a video loopback
diagnostic test.
4. Replace the failed board, if
indicated.
refer to Table 4-3.
4-23
TROUBLESHOOTING
Verifying
Electrical Voltage
Warning
A licensed electrician must perform this veriÞcation.
The voltages present can cause fatal injury.
Have a licensed electrician test the current from the electrical wall
connection and make sure that the current meets engineering
speciÞcations if the PictureTel Ready message is not displayed.
Have a licensed electrician verify the electrical voltage, as follows:
1. Make sure that the main AC power cable is not connected to the
system, and plug the cable into the wall outlet.
2. Verify that the AC voltage from the wall outlet meets specifications.
Do this by plugging the leads from a digital voltmeter into the
system end of the cable in each of the following two positions:
a. Plug the voltmeter leads into the hot and neutral leads of the
AC cable.
b. Plug the voltmeter leads into the hot and ground leads of the
AC cable.
3. Verify the AC power cable by plugging one voltmeter lead into the
neutral lead and the other voltmeter lead into the ground lead.
The reading should be under 1 VAC.
4-24
Verifying Electrical Voltage
4. Verify that the AC voltage from an additional AC source, used for
optional equipment, is equal to the voltage of the main AC power
source. Do this by plugging the leads from the digital voltmeter
into the system ends of the two cables in each of the following
positions:
a. Plug the voltmeter leads into the ground leads of the AC
cables. The reading should be zero.
b. Plug the voltmeter leads into the neutral lead of one AC
cable and into the ground lead of the other AC cable.
The reading should be under 1 VAC.
5. Verify that the AC phase from an additional AC source, used for
optional equipment, is equal to the phase of the main AC power
source. Do this by plugging the leads from the digital voltmeter
into the hot (powered system end) leads of the two AC cables.
The reading should be under 1 VAC; if the reading is roughly at
or above the nominal line voltage, the two sources are most
likely of a different phase.
4-25
TROUBLESHOOTING
Installation
Checklist
If you are having problems getting equipment to work, be sure that
all of the necessary components have been installed. Refer to the
table below and see the documentation that came with each
component if you have any questions.
Table 4-8: Installation Checklist
Component
Technical Tips
For more information, see...
WorldCart
Installing the WorldCart
Main camera
Installing the PowerCam 100
Keypad
Installing the Keypad
Look-At-Me-Button
Installing the Look-At-Me-Button
Microphone
Installing the PowerMic
Optional Equipment
Document that comes with each
piece of equipment
Modem
The Concorde¥4500 Modem Card
Software
Installing the Software Cartridge
The following table offers you some quick technical tips that may
save you time when troubleshooting a problem.
Table 4-9: Technical Tips
Component
4-26
Tip
PTZ style camera
Unlike the PowerCam 100, the PTZ style camera
cannot be controlled from the LAMB.
VCR
You should use a line-level input VCR with the
Concorde¥4500.
PowerMic
You can daisy chain a maximum of four PowerMic
microphones Ñ for example, one main PowerMic
with three daisy chained to it.
Technical Tips
Table 4-9: Technical Tips (Continued)
Component
Checking audio - far-end
or long distance
Tip
Any local telephone company can arrange for you to
have a local network loopback number. If you call a
loopback number and get audio, there is a problem
with the long distance carrier or the far end.
To verify that you can call out of the building, you can
call the central ofÞce (CO). To Þnd out whether the
audio signal is getting out of the building, the
telephone company can put a trap on the line. If the
signal is not caught by the trap, then the signal is not
getting sent out properly by the data circuitterminating equipment (DCE).
Switched-56 network
interface board
If the two NS signals on the back of the CSU are lit,
you are not receiving any signals from the network.
Network data rates
A 56 kbps network cannot carry calls at 64 kbps,
which is what is required for ISDN services. Ideally,
your network should be able to operate at both 56
kbps and 64 kbps. Check with your network provider
for more information.
Private dialing network
If you are using a private dialing network, for
example, a government network, you cannot call out
of your circle without using pic codes. Call your local
telephone company for information on how to get pic
codes for your service.
board
If you are upgrading your system and using a new
X.21 interface board, be sure to order a network
conversion kit when you order your network board. If
the system you are upgrading has a CP board (part
number 500-0070-02) revision M or older, then you
also need to order an upgrade kit that includes the CP
board.
4-27
TROUBLESHOOTING
Component
PowerMic
Tip
Automatic Gain Control (AGC) and Automatic Noise
Suppression (ANS) are performed on telephone addon calls, but will only affect the far-end video site.
ANS reduces noise to a maximum of 12 dB. If you are
using a PowerMic and speaking from a distance of 7
or 8 feet, the noise reduction drops under 8 dB.
ANS needs approximately 2 seconds to pick up a loud
sound and start to reduce it.
In SG3 mode Ð pressing the mute button also causes
AGC to increase its sensitivity and pick up any noise
or sound from the telephone add-on and send it to the
far end.
Recommendation Ð Deactivate AGC on any system that
inserts the audio call into the videoconference.
When using more than one PowerMic, you may
experience echoes and audio calibration. To avoid this:
4-28
❑
Keep the minimum distance between the
speakers and the microphones at 182.8 cm
(6 feet).
❑
Place all of the microphones in the same
direction.
❑
Keep all PowerMics no more than 1,524 cm
(50 feet) from the speakers. This is a straight
line distance measurement.
❑
Separate PowerMics by at least 304.8 cm
(10 feet) from each other.
❑
Do not combine tabletop or ceiling
microphones with PowerMics. The
combination results in the conventional
microphones severely degrading the
performance of the PowerMic.
❑
Use a lapel microphone with a PowerMic as
long as it is 365 cm (12 feet) from the PowerMic.
Technical Tips
Component
Keypads
Tip
To get into an extended Power-On-Self-Test (POST)
from system power-on:
1. Run the POST.
2. POST software determines the codec configuration and
displays the configuration on the screen.
3. POST waits about 4 to 5 seconds to determine if a
Detector is connected on the CP serial control port.
If a Detector is not present, the message PASS 2 is
displayed on the top line, on the right side of the
screen.
4. POST waits about 5 seconds to determine if the proper
keypad button is pressed.
To press the proper keypad button:
❑
For a wired keypad press the right arrow key
and hold it down until Backplane test 10 is
displayed on the monitor.
❑
For a wireless keypad press the right arrow key
beside the choose label. Keep pressing
continuously until backplane test 10 is
displayed on the monitor.
If the wrong keypad button is pressed, the system
goes into rapid POST.
4-29
TROUBLESHOOTING
Isolating a Problem with Port 1 and Port 2
This troubleshooting tip is valid for any type of DCE.
FF.Y.I.
YI
If you are having a problem with one of the Concorde¥4500 ports,
and you canÕt determine whether the problem is with the port, the
terminal adapter, or the cable, try the following suggestion.
In the following illustration, Port 1, shown by a broken line, will not
sync up with the terminal adapter.
1. Connect a cable to Port 1 on the Concorde•4500 and Port 1 on the
terminal adapter. Do the same for Port 2.
Port 1
Port 2
Concorde•4500
with V.35
Port 1
Port 2
Terminal Adapter
NT1
Network
2. Try flipping the cables to test Port 2. Use the cable that was
originally connected to Port 1 on the Concorde•4500. Connect the
cable to Port 2 on the Concorde•4500 and Port 1 on the terminal
adapter.
Follow the broken line in the following illustration. The result is
that Port 2 does not sync up with the terminal adapter.
So far, the problem seems to be following along the broken line.
Port 1
Port 2
Concorde•4500
with V.35
4-30
Port 1
Port 2
Terminal Adapter
NT1
Network
Loopback Tests
3. Try flipping the cables at the terminal adapter, since the problem
seems to be at this connection. The cable that was originally
connected to Port 1 on the Concorde•4500 and Port 1 on the
terminal adapter is now connected to Port 2 (on both ends.) Do the
same for the other cable. Connect it to Port 1 on the
Concorde•4500 and Port 1 on the terminal adapter.
Port 1
Port 2
Port 1
Port 2
Terminal Adapter
Concorde•4500
with V.35
NT1
Network
The result is that Port 1 will not sync up. The problem has
followed the same port (Port 1) on the terminal adapter. By
experimenting with the cables you can determine that there will
be a problem with any cable connected to Port 1 on the terminal
adapter.
Loopback Tests
Loopback tests verify the operation of various components in the
data path of the system. Failure of a loopback test indicates that one
of the devices in the data path failed to transmit the data.
Typical reasons for device failure are:
❑
The device is not plugged in or turned on.
❑
One or more cables are loose or disconnected.
❑
The device is not set properly (it may have been left in a test
mode).
❑
The device is faulty.
4-31
TROUBLESHOOTING
The main objective of loopback tests is to determine if you can
receive error-free audio/visual feedback of your site. Since each of
these loopback tests involves different parts of the system, you can
use the tests to isolate where problems are occurring.
When you choose View Near End Tests from the Diagnostics menu,
you see this menu:
Near-End Tests
View Previous Menu
Exit Menu Session
Select System Self Test
Run Video-Audio Test Pattern
Run Video-Audio Loopback
Run Local Channel Loopback
[Run CSU Self Test] *
Set Test Configuration
Stop Test
Figure 4-3: Near-End Tests Menu
* The Run CSU Self Test is only present when an ICS-4 board is
installed.
4-32
Loopback Tests
When you choose View Far End Tests from the Diagnostics menu, you
see this menu:
Far-End Tests
View Previous Menu
Exit Menu Session
Select System Self Test
Run Remote Video-Audio Loopback
Run Remote CSU Loopback *
Stop Test
Figure 4-4: Far-End Tests Menu
* The Run Remote CSU Loopback Test is only present when an
ICS-4 board is installed.
The following table lists the various loopback tests you can run on a
Concorde¥4500. For information on how to perform these tests, see
Chapter 3 in the Concorde¥4500 AdministratorÕs Guide.
Table 4-10: Loopback Tests
Test
Run Local Video/
Audio Loopback
Definition
Takes the video and audio signals from
the local system and loops them back
through the monitor and speakers. These
signals do not go through the codec. You
do not need to place a call to run this test.
4-33
TROUBLESHOOTING
Table 4-10: Loopback Tests (Continued)
Test
Definition
Run Local Channel
Loopback
Takes the audio and video signals from
the local system and loops them back
through the local codec and the H.320
multiplexer. You do not need to place a
call to run this test.
Run Remote Video/
Audio Loopback
Requests the far-end system to retrieve
data after passing it through the codec
and back. Displays the near-end video
image on your full screen with
accompanying audio after looping
through the far-end electronics module.
This test is part of the ITU-T H.320
videoconferencing standards and is used
by PictureTel service providers to test
PictureTel systems with other vendorsÕ
equipment. You must make a call to run
this test.
Run Remote CSU
Loopback
Displays the near-end video image on
your full screen after looping the signal
through both the near-end and far-end
CSUs. You must make a call to run this
test.
Running the Local Video/Audio Loopback Test
When you choose Run Video/Audio Loopback, the video and audio
signals from your local camera and microphones are looped back to
your monitor and speakers. These signals are local to your system
and are not compressed or sent on telephone lines.
The audio is real time with no delay. This test veriÞes the operation
of the near-end components and the cables up to the VCS. Thus, if
this test runs without errors, your hardware components, such as
video and audio board, cameras and peripheral equipment, are
probably operating correctly and the problem is elsewhere.
The following Þgure illustrates how the local video/audio loopback
test runs.
4-34
Network
interface card
Coder
Decoder
Audio/video
processor
Loopback Tests
Network
Codec
Electronics module
Figure 4-5: Local Video/Audio Loopback Test
Running the Local Channel Loopback Test
When you run the local channel loopback test, the audio, video and
data signals are passed through the codec, and up to the network
interface board and then looped back through the system to your
speakers, monitor and data devices. This test veriÞes the operation
of the near-end components and cables, and the codec.
If you receive errors when you run this test, but not when you run
the local audio/video loopback test, you may have a problem with
the VCS and Communications board.
4-35
TROUBLESHOOTING
Coder
Network
interface card
PC
Decoder
Audio/video
processor
The following Þgure illustrates how the local channel loopback test
runs.
Network
Codec
Electronics module
Figure 4-6: Local Channel Loopback Test
Running the Remote Video/Audio Loopback Test
The remote video/audio loopback test requests the far-end system
to loop the data after passing it through the codec. This test is part
of the ITU-T H.320 videoconferencing standards.
The following Þgure illustrates how the remote video/audio
loopback test runs.
Codec
Electronics module
Audio/video
processor
Decoder
Coder
Network
Network
interface card
Network
interface card
Coder
Far-end site
Decoder
Audio/video
processor
Near-end site
Codec
Electronics module
Figure 4-7: Remote Video/Audio Loopback Test
4-36
Loopback Tests
Running the Remote CSU Loopback Test
The remote CSU loopback test is run while a call is in progress. This
test directs the near-end signal through the near-end CSU and sends
it over the telephone lines to the far-end CSU. The signal then loops
through the far-end CSU and back through the telephone lines to the
near-end CSU.
The following Þgure illustrates how the remote CSU test runs.
Codec
Electronics module
Audio/video
processor
Decoder
Coder
Network
interface card
Network
Channel
service unit
Channel
service unit
Network
interface card
Coder
Far-end site
Decoder
Audio/video
processor
Near-end site
Codec
Electronics module
Figure 4-8: Remote CSU Loopback Test
4-37
Ordering and
Returning
Components
This chapter describes
❑
How to order and return any
components that need to be replaced
❑
The Field Replaceable Units (FRUs)
5
Ordering and
Returning
Components
This chapter provides you with information on the various Field
Replaceable Units (FRUs) and gives you the part numbers for
ordering them. Instructions are also given for returning
components.
Ordering
Components
To order components, use part numbers from the following table
and use the following address:
PictureTel Corporation
ESD Logistics
100 Minuteman Road
Logistics Dock
Andover, MA 01810
Field
Replaceable
Units
The following table describes all of the Field Replaceable Units
(FRUs) for the Concorde¥4500.
Table 5-1: List of Field Replaceable Units
Part Number
FRU
Description
180-0055-01
CA, Tele, Mod-Mod, 25 Ô, 6P, 4Con
U.S. 2 wire to outlet
180-0077-01
CA, D-Sub, M-F, Shld, Gray, 6Õ, 25P
Cable RS366 to modem
300-0003-03
Pwr Sply, Module, 400 W, 50Amp, 5V
System power supply
5-1
ORDERING AND RETURNING COMPONENTS
Table 5-1: List of Field Replaceable Units (Continued)
Part Number
5-2
FRU
Description
370-0190-02
Mon, Clr, 27Ó, W/Spkrs
27Ó monitor
500-0009-04
Pcb, Tstd, Backplane, Concorde
Backplane
500-0024-01
Pcb, Tstd, Intfc, Tel, 2 Wi, Concorde
U.S. telephone add-on board
500-0057-03
Assy. Trnky, Camr, PTZ, PAL
PAL PowerCam 100
500-0104-03
Pcb, Tstd, Aud, Concorde
Audio board
500-0111-02
Pcb, Tstd, Vid, NTSC, Concorde
NTSC Video board
500-0112-02
Pcb, Tstd, Vid, PAL, Concorde
PAL Video board
500-0140-02
Pcb, Tstd, Lea, HAP, Array
Array Processor board - HAP8
500-0163-01
Pcb, Tstd, Quad, Lea HAP, Array
Array Processor board - HAP4
500-0204-01
Pcb, Tstd, Hex, Lea, AP, Array
Array Processor board- HAP6
510-0066-01
Ca Assy, 50, Cndct, Gcp
Internal ribbon V.35 board to
panel
510-0099-01
Ca, Assy, V.35, Dte, 5Õ
V.35 cable
510-0114-01
Ca Assy, V.25, Dte, 5Õ
V.25 cable
510-0173-01
Ca Assy, RCA-RCA, 3M, Hat
To monitor
510-0174-01
Ca, Assy, RCA-RCA, 150 mm, Hat
To cable
510-0184-01
Assy, Ca, Scart, Aud/Vid, 3m
Scart cable
510-0188-01
Ca Assy, 25Õ Mic Puck-Mic-Puck
25Õ extension cable, PowerMic
510-0189-01
Ca Assy, 10Õ Mic Puck-Mic-Puck
10Õ extension cable, PowerMic
510-0190-01
PowerMic to E-box
cable for PowerMic
510-0194-01
Assy, Ca, 50Õ Std, Camr
Remote PowerCam 100 cable
510-0200-01
Assy, Ca, A/V Harness, S400, EX
WorldCart cable harness
510-0214-01
Ca Assy, RJ45, Sw56
RJ45 cable
Field Replaceable Units
Part Number
FRU
Description
520-0135-05
Assy, Ebox, NTSC, Reqmnts, S4EX
Loaded NTSC E-box
520-0134-06
Assy, Ebox, PAL, Reqmnts, S4EX
Loaded PAL E-box
540-0058-03
Assy, Trnky, camr, PTZ, NTSC
NTSC PowerCam 100
540-0060-01
Assy, Trnky, IR Kypd, English
English wireless keypad
540-0071-01
Assy, Trnky, IR Kypd, French
French wireless keypad
540-0073-01
Assy, Trnky, IR Kypd, Spanish
Spanish wireless keypad
540-0074-01
Assy, Trnky, IR Kypd, German
German wireless keypad
540-0172-01
Assy, Trnky, IR Kypd, Kanji
Kanji wireless keypad
540-0064-01
Assy, Trnky, English LAMB
English LAMB
540-0083-01
Assy, Trnky, German LAMB
German wireless LAMB
540-0084-01
Assy, Trnky, French LAMB
French wireless LAMB
540-0085-01
Assy, Trnky, Spanish LAMB
Spanish wireless LAMB
540-0086-01
Assy, Trnky, Kanji LAMB
Kanji wireless LAMB
540-0094-01
Assy, Trnky, Camr, PTZ, AT&T
AT&T PowerCam 100 NTSC
540-0096-01
Assy, Trnky, IR Keypad, AT&T
AT&T wireless keypad
540-0102-01
Assy, Trnky, BOSE Rayban Spkr
WorldCart speaker
540-0116-01
Assy, Trnky, IR Keypad, Italian
Italian wireless keypad
540-0117-01
Assy, Trnky, LAMB, Italian
Italian LAMB
610-0039-01
Assy, Opt, DI/V.25, S4000
DI W/2 v.35 CONN
610-0040-01
Assy, Opt, DI/R5449, S4000
DI W/2 RS449 CONN
610-0041-01
Assy, Opt, DI/RJ232, S4000
DI W/4 RJ232 CONN
610-0328-03
Assy, Trnky, Mic Puck
PowerMic
610-0337-02
Assy, 2WI, IPA, UK
UK telephone add-on
5-3
Part Number
5-4
FRU
Description
810-0229-01
Assy, Doc Set, S4500
Assy, Doc Set, S4500
810-0277-01
Assy, Doc Set, S4500, German
Assy, Doc Set, S4500, German
810-0286-01
Assy, Doc Set, S4500, French
Assy, Doc Set, S4500, French
810-0314-01
Assy, Doc Set, S4500, Japanese
Assy, Doc Set, S4500, Japanese
850-0004-03
S4 Chassis, EMI
(Not applicable)
850-0116-01
Assy, FRU, Aud PCB, W/2WI, NTSC
Audio Board w/U.S. telephone
add-on
850-0114-01
Assy, Fru, Vid, NTSC, S4000EX
NTSC Video and Graphic
Daughter Boards
850-0115-02
Assy, Fru, Vid, PAL, S4000EX
PAL Video and Graphic
Daughter Boards
851-0016-01
Kit, Field, Upgrade, 2WI, IPA, UK
UK telephone kit
610-0155-03
NTSC Camera RE650 Doc Camera
Canon Doc Camera
610-0328-03
Power Microphone S4000EX
STD Power Mic kit
MIC-1-EX
Power Microphone S4000EX
Extension Power Mic kit
610-0049-01
Lapel Microphone
Lapel Microphone
370-0190-03
27Ó Stand-alone monitor
27Ó monitor
370-0188-03
32Ó Stand-alone monitor
32Ó monitor
610-0220-01
Assy, Opt, 120V, Preview Mon, NTSC
Preview monitor
610-0177-01
35 MM slide camera
35 MM slide camera
Returning Components
Returning
Components
To return components, request a Return Material Authorization
(RMA) number from Logistics.
Then package components for return by following these steps.
Caution
Always use nonconductive packing materials. Do not use
foam as a packing material.
To pack boards:
1. Wrap the board in a static-free bag.
2. Wrap the bag and board in bubble wrap.
3. Place the wrapped board in a shipping carton, using additional
bubble wrap, an necessary.
4. Send the shipping carton to PictureTel.
To pack small items such as keypads:
1. Wrap the item in bubble wrap.
2. Place the bubble wrapped item in a shipping carton, using
additional bubble wrap, as necessary.
3. Send the shipping carton to PictureTel.
To pack large items such as monitors, VCRs, or document cameras:
1. Wrap the item in bubble wrap.
2. Place the bubble wrapped item in a shipping carton, using
additional bubble wrap, as necessary.
3. Do one of the following:
❑
Tie the carton securely to a pallet.
❑
Cushion the carton in a wooden crate.
5-5
Use the following address to return components:
PictureTel Corporation
ESD Logistics
100 Minuteman Road
Logistics Dock
Andover, MA 01810
You may also return components to the distributor.
5-6
A
Concorde¥4500
SpeciÞcations
This appendix describes the physical, electrical, environmental,
video, audio, and network speciÞcations for the Concorde¥4500.
Physical
Specifications
The following table lists the physical speciÞcations, such as size,
weight, and clearance, for the Concorde¥4500 components.
Table A-1: Physical Specifications
Module
Height
Width
Depth
Clearance
Top
Rear
Weight
PowerCam
100
12 cm
(4.6 in.)
18 cm
(7 in.)
19 cm
(7.6 in.)
6 kg
(4 lb., 12 oz.)
5 cm
(2 in.)
10 cm
(4 in.)
Document
camera
67 cm
(26.8 in.)
45 cm
(18.0 in.)
55 cm
(22 in.)
7.5 kg
(16.6 lb.)
13 cm
(5.2 in.)
(Not
applicable)
PTZ
camera
44.5 cm
(17.3 in.)
64.8 cm
(25.3 in.)
19.8 cm
(7.6 in.)
3.1 kg
(6 1b., 12
oz.)
5 cm
(2 in.)
10 cm
(4 in.)
Keypad
333 mm
(13.1 in.)
1689 mm
(66.4 in.)
54 mm
(2.1 in.)
563 gr
(1 lb., 4 oz.)
(Not
applicable)
(Not
applicable)
Electronics
Module
48.8 cm
(17.5 in.)
30.7 cm
(12 in.)
57.6 cm
(22.5 in.)
25.8 kg
55 lb.
0.65 cm
(.25 in.)
10 cm
(4 in.)
27Ó
Monitor
60.5 cm
(in.)
66.6 cm
(26 in.)
52.2 cm
43.2 kg
(95 lb.)
(Not
applicable)
(Not
applicable)
(20.3 in.)
A-1
CONCORDE¥4500 SPECIFICATIONS
Table A-1: Physical Specifications (Continued)
Module
Height
Width
Depth
Weight
Clearance
Top
Rear
32Ó
Monitor
71.8 cm
(28 in.)
78.1 cm
(30.4 in.)
58.3 cm
(22.7 in.)
68.2 kg
(150 lb.)
(Not
applicable)
(Not
applicable)
WorldCart
79.3 cm
(30.9 in.)
73.6 cm
(28.7 in.)
71.8 cm
(27.9 in.)
71.8 kg
(157.85 lb.)
(Not
applicable)
10 cm
(4 in.)
Electrical
Specifications
The following table lists the electrical speciÞcations for the
Concorde¥4500.
Caution
Verify that your monitor is set for the correct voltage and
frequency for operation in your country.
Table A-2: Electrical Specifications
Parameter
Operating voltage
A-2
Specification
Electronics module
In Japan, Europe, and the
United States, an
autoarranging power supply
adapts the electronics module
automatically to the
operating frequency of 50 or
60 hertz (Hz) and to the
operating voltage of from 85
through 240 volts AC (VAC).
Monitor
The monitor is factory set to
100/110 or 220/240-volt (V)
operation, depending on the
country in which it is sold.
Environmental SpeciÞcations
Table A-2: Electrical Specifications (Continued)
Parameter
Typical current
draw
Environmental
Specifications
Specification
Electronics module
600 volt-amperes (VA)
Monitor
300 VA
The following table lists the environmental requirements for the
Concorde¥4500. PictureTel does not guarantee system performance
if the Concorde¥4500 operates outside of these requirements.
Table A-3: Environmental Specifications
Parameter
Category
Specification
Operating
+32o through +109o F
(0o through +40o C)
Nonoperating
-40o through + 158o F
(-40o through +70o C)
Operating
10% through 80%
noncondensing
Nonoperating
10% through 95%
noncondensing
Operating
-152 through 4,550 meters
above sea level (asl)
(-500 through 12,000 feet)
Nonoperating
-304 through 15,167 meters
(asl)
(-1,000 through 50,000 feet)
Ambient noise
Background noise
level
Less than 50 decibels sound
pressure level (dBSPL),
A-weighted
Lighting intensity
Minimum
illumination
28 foot candles (300 lux)
Temperature
Humidity
Altitude
A-3
Table A-3: Environmental Specifications (Continued)
Parameter
Category
Recommended
illumination
Specification
70 through 100 foot candles
(740 through 1,100 lux)
Note: For a Concorde¥4500 the heat dissipation is measured at
less than 250 watts or 850 BTU per hour.
Video
Specifications
The following table lists the video speciÞcations for the
Concorde¥4500.
Table A-4: Video Specifications
Parameter
Video algorithms
NTSC or PAL video
format
Monitor/video
resolution
Category
Specification
PictureTel proprietary
SG3
ITU-T standards (px64)
H.320
Video coding
H.261
Audio coding
G.722, G.711, G728, PT724
Composite connector
RCA phono
Y/C connector
4-pin mini DIN
Input/output impedance
75
Signal level
1 Vp-p
SG3
256 x 240 pixels (NTSC)
256 x 288 pixels (PAL)
H.320
FCIF 352 x 240 pixels (NTSC)
FCIF 352 x 288 pixels (PAL)
QCIF 176 x 120 pixels(NTSC)
QCIF 176 x 144 pixels (PAL)
A-4
Video SpeciÞcations
Table A-4: Video Specifications (Continued)
Parameter
Category
Specification
Videographics
resolution
SG3, H.320
512 x 480 pixels (NTSC)
512 x 576 pixels (PAL)
Video inputs
Main camera
Y/C or composite
Auxiliary cameras
(maximum of two)
Y/C or composite
Document camera
Composite
VCR Video In
Composite
Main monitor
Composite
Second monitor
Composite
VCR Video Out
Composite
Video outputs
A-5
Audio
Specifications
The following table lists the audio speciÞcations for the
Concorde¥4500.
Table A-5: Audio Specifications
Bandwidth
Narrowband
(toll quality)
Wideband
Category
Transmission
Bandwidth
Consumed
(kbps)
Algorithms
Supported
Audio
Bandwidth
(None
applicable)
(A-law or u-law)
G.711
56 or 48
300 Hz - 3.4 KHz
ITU-T standard
G.728
112
300 Hz - 3.4 KHz
ACPCM
G.722
48, 56, or 64
50 Hz - 7.0 KHz
(Proprietary)
SG3
Variable (8 - 32)
30 Hz - 7.0 KHz
(Proprietary)
PT724
24
50 Hz - 7.0 KHz
Network
Specifications
The following table lists the network speciÞcations, including the
network interfaces available for the Concorde¥4500.
Table A-6: Network Specifications
Network Interface
Ports
Connector
Switched-56 a
2
RJ-48S
Inband
V.35
2
DC-37P
RS-366
RS-449
2
DC-37P
RS-366
X.21
2
DA-15P
Inband
V.25 bis
2
DA-15P
Inband
a. Includes a nondialed RS-449 (DC-37P) port
A-6
Dialing
Interface
B
Pin Assignments
This appendix lists the pin assignments for various components that
make up the Concorde¥4500.
PowerCam 100
Cable
A single cable connects from the Y/C video output on the back of
the PowerCam 100, to the video input connector on the video board.
The cable carries power, bidirectional data, and S-VHS video.
The following table lists the pin assignments for the 8-pin DIN
camera control interface connector.
Note: If you are using an older model PictureTel PTZ camera,
which has an 8-pin and a 4-pin connector, you will need
to purchase a Y adapter cable (part # 180-0189-01) to
connect the camera to the video input connector on the
video board.
Table B-1: Pin Assignments for the PowerCam 8-Pin
Connector
Pin
Description
1
Electronics module to camera module data TX,
EIA RS-423A or RS-232C compatible input
2
Camera module to electronics module data RX,
EIA RS-423A or RS-232C compatible output
3
Ground (digital data)
B-1
PIN ASSIGNMENTS
Table B-1: Pin Assignments for the PowerCam 8-Pin
Connector (Continued)
Pin
FF.Y.I.
YI
Description
4
Reserved for Genlock (-12 volts)
5
Ground (Y/C chrominance shield)
6
S-VHS Y/C luminance shield
7
+ 12 volt input
8
S-VHS Y/C chrominance shield
The standard cable for the PowerCam 100 , 5.5 m (18 feet), is
supplied with audio and video. If this cable is not long
enough, you can purchase an extended cable. With both the
standard cable and the extended cable , the maximum
length of the camera cable is 15 m (150 feet). If you are using
a cable that reaches the maximum length, you may need to
use an external power supply.
The following illustration shows two views of the 8-pin mini DIN
connector. The view on the left shows what the connector looks like
from a straight on view. The view on the right shows the 8-pin mini
DIN connector from the back of the electronics module.
7
6
3
8
4
1
5
2
Straight on view
7
8
5
4
2
3
1
View from back of
electronics module
Figure B-1: 8-Pin Mini DIN Connector
B-2
6
Document Camera Cable
Document
Camera Cable
The document camera uses a 75 ohm video coax cable, which has:
❑
a BNC connector on the document camera end to a phono plug
RCA adapter cable (part # 510-0192-01) on the codec end, or
❑
a YC to YC 4-pin cable (part # 510-0193-01) and a 4-pin to 8-pin
adapter cable.
This cable can be extended by Þtting bulkhead BNC sockets into the
ßoor boxes and supplying ßying leads at each end.
The following illustration shows the document camera cables.
Optional composite
peripheral cable
510-0192-01
Optional S-video (Y/C)
peripheral cable
510-0193-01
Figure B-2: Document Camera Cables
B-3
PIN ASSIGNMENTS
Wired Keypad
Interface
Connector
The Concorde¥4500 comes with a wireless keypad. However, some
customers still prefer to use the wired keypad. The wired keypad
interface uses a 6-wire RJ-11 shielded module jack. A UTP will also
work if you require wiring under the ßoor. Table B-2 lists the pin
assignments for the RJ-11 jack.
Table B-2: Pin Assignments for the RJ-11 Modular Jack
Interface Connector
Pin(s)
Description
1, 6
Shield pair 3
2, 5
Power pair 2
3, 4
Audio-data pair 1
The following illustration shows the RJ-11 jack.
1 2 3 4 5 6
Figure B-3: RJ-11 Jack
B-4
PowerMic 100 Cable
PowerMic 100
Cable
The following table lists the pin assignments for the PowerMic 100.
Table B-3: Pin Assignments for PowerMic Cable
Pin
FF.Y.I.
YI
Description
1
NC
2
NC
3
NC
4
Signal ground and power return
5
Microphone audio
6
+ 12 volts
7
Microphone audio
The cable length for the PowerMic is 7.6 m (24.9 feet) with a
maximum distance of 9 m (29.52 feet) between the
microphone and the loudspeaker. If a longer cable is
necessary, a screened cable can be used.
The following illustration shows two views of the 7-pin mini DIN
connector. The view on the left shows what the 7-pin mini DIN
connector looks like when you observe the connector straight on.
The view on the right shows what the connector looks like from the
back of the electronics module.
B-5
PIN ASSIGNMENTS
6
5
7
3
4
1
6
7
2
Straight on view
5
4
3
2
1
View from back of
electronics module
Figure B-4: 7-Pin Mini DIN Connector
Lapel and
Tabletop
Microphone
Connectors
The lapel and tabletop microphones use a 3-pin female miniature
XLR cable with 3-pin male connectors to plug into the keypad or
into the AI board in the electronics module. The following table lists
the pin assignments for both the lapel and the tabletop microphone
connectors.
Table B-4: Pin Assignments for Lapel and Tabletop
Microphone Connectors
Pin
PC Serial Data
Cable
B-6
Description
1
Ground (shield)
2
Audio
3
Audio
The PC Serial Data cable (D1) is used to connect a PC to the
Concorde¥4500 system. A PC with GroupShare installed that is
connected to a videoconferencing system, allows you to transfer
Þles and share applications. For more information on GroupShare,
see the GroupShare UserÕs Guide.
PC Serial Data Cable
The PC Serial Data cable has a 9-pin D Female connector which
plugs into the back of the PC and a 25-pin D Male connector which
plugs into Control Port B on the CP board or any of the RS-232 ports
on the DI board.
The following table lists the pin assignments for the PC Serial Data
cable.
Table B-5: Pin Assignments for the PC Serial Data Cable
Direction of Flow
PC
VCS
Pin
(25-pin to
Concorde•
4500)
Signal
Signal
Description
Pin
(9-pin
to PC)
RX
Receive data
2
< ÐÐÐÐÐÐÐÐÐÐÐÐÐÐ
3
RX
TX
Transmit
data
3
ÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐ>
2
TX
DCD
Data carrier
detect
1
<ÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐ
8
DCD
DSR
Data set
ready
6
<ÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐ
6
DSR
DTR
Data
terminal
ready
4
4
DTR
RTS
Request to
send
7
20
RTS
CTS
Clear to send
8
<ÐÐÐÐÐÐÐÐÐÐÐÐÐÐ
5
CTS
GND
Ground
5
ÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐ
7
GND
Maximum
Cable
Length
7.5 m
(24.6 feet)
B-7
PIN ASSIGNMENTS
Switched-56
Network
Interface
For information on how to connect to a particular network
interface, see the Concorde¥4500 AdministratorÕs Guide.
FF.Y.I.
YI
This section describes the connectors and pin assignments used for
a switched-56 network. To connect a Concorde¥4500 to a dialed
CSDC 56 -kb network or to a nondialed DDS network interface you
use the RJ-48S, 9-pin modular jack. The following illustration shows
a front view of this jack.
12345678
Figure B-5: RJ-48S Interface Jack
The following table lists the pin assignments for a switched-56
network.
Table B-6: Pin Assignments for Four-Wire CSDC Interface
Connector
Pin
B-8
Pin Name
1
R1
2
T1
7
T
8
R
Functional Description
Transmits data from the system
Receives data from the network
V.35 Network
Interface
This section describes the V.35 network interface connections and
pin assignments. PictureTel provides the necessary female DC-37 to
M-34 conversion adapter cables.The adapter cables are connected to
the male DC-37 connectors on the electronics module, shown in the
following illustration.
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19
20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37
Figure B-6: V.35 Interface DC-37 Connector on the
Electronics Module
The following table lists the pin assignments for the adapter cable
provided by PictureTel.
Table B-7: Pin Assignments for V.35 Network Data Port (DC-37
Male) Adapter Cable
DC-37 Pin
V.35
Circuit
Function
Source
Description
1
A
FG
(Not applicable)
Frame ground
4
P, S
SD +, SD -
Concorde¥4500
Send data
5, 23
Y, AA
ST +, ST -
Data communications
equipment (DCE)
Send timing
6, 24
R, T
RD +, RD -
DCE
Receive data
7
C
RTS
Concorde¥4500
Request to send
8, 26
V, X
RT +, RT -
DCE
Receive timing
9
D
CTS
DCE
Clear to send
11
E
DSR
DCE
Data set ready
12
H
DTR
Concorde¥4500
Data terminal
ready
B-9
PIN ASSIGNMENTS
Table B-7: Pin Assignments for V.35 Network Data Port (DC-37
Male) Adapter Cable (Continued)
DC-37 Pin
V.35
Circuit
Function
Source
Description
13
F
RLSD
DCE
Received line
signal detector
15
J
RI
DCE
Ring indicator
19
B
SG
(Not applicable)
Signal ground
FF.Y.I.
YI
The connector panels on the CP board are identical for the
V.35 and RS-449 networks; however, the interface daughter
boards are different.
The following illustration shows the cable supplied with the V.35
network interface system. This cable connects to the
Communications board V.35 network panel, as shown in the
following illustration. For more speciÞc information, see the
Concorde¥4500 AdministratorÕs Guide.
B-10
RS-449 Network Interface
V.35 (RS-449)
DC-37S connector
PORT 1
CHAN
CTRL
A
DIAL
PORT 2
CHAN
CTRL
B
DIAL
M-34 connector
Figure B-7: Adapter Cable and Connection Panel for a
RS-449 Network
Interface
This section describes the EIA RS-449 network interface connections
and pin assignments.
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19
20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37
Figure B-8: EIA RS-449 Interface DC-37 Connector on the
Electronics Module
B-11
PIN ASSIGNMENTS
The following table lists the pin assignments for the EIA RS-449
network interface using a Belden 9737 cable.
Table B-8: Pin Assignments for EIA RS-449 Network Data Port
Using a Belden 9737 Cable
Pin
Function
Source
Description
1
Ground
Shield
Protective ground
3, 21
EC1 +, EC -
Concorde¥4500
Encrypter control
4, 22
SD +, SD -
Concorde¥4500
Send data
5, 23
ST +, ST -
DCE
Send timing
6, 24
RD +, RD -
DCE
Receive data
7, 25
RTS +, RTS -
Concorde¥4500
Request to send
8, 26
RT +, RT -
DCE
Receive timing
9, 27
CTS +, CTS -
DCE
Clear to send
11, 29
DM +, DM -
DCE
Data mode
12, 30
DTR +, DTR -
Concorde¥4500
Data terminal
ready
13, 31
RR +, RR -
DCE
Receiver ready
15
IC
DCE
Incoming call
17, 35
TT +, TT -
Concorde¥4500
Terminal timing
19
SG
DCE
Signal ground
20
RC
DCE
Receive common
37
SC
Concorde¥4500
Send common
Instead of the recommended Belden 9737, you can use a Belden 9731
(or equivalent) to provide limited function in the following
situations:
B-12
❑
When the network interface or DCE does not require
handshake or encryption-control signals from the
Concorde¥4500, and
❑
When the cost of long cable runs for a full EIA RS-449
implementation is prohibitive.
When you use a Belden 9731, you cable only the signals listed in the
following table.
Table B-9: Pin Assignments for EIA RS-449 Network Data Port
Using a Belden 9731 Cable
Pin
X.21 Network
Interface
Function
Source
Description
1
Ground
Shield
Protective ground
4, 221
SD +, SD -
Concorde¥4500
Send data
5, 23
ST +, ST -
DCE
Send timing
6, 24
RD +, RD -
DCE
Receive data
8, 26
RT +, RT -
DCE
Receive timing
19
SG
DCE
Signal ground
20
RC
DCE
Receive common
This section describes the data port pin assignments for the X.21
network interface.
Table B-10: Pin Assignments for X.21 Network
Data Port
Pin
Circuit
Description
2
T
Transmit A
3
C
Control A
B-13
PIN ASSIGNMENTS
Table B-10: Pin Assignments for X.21 Network
Data Port (Continued)
Pin
B-14
Circuit
Description
4
R
Receive A
5
I
Indication A
6
S
Signal element timing A
7
B
Byte timing A
8
G
Common return
9
T
Transmit B
10
C
Control B
11
R
Receive B
12
I
Indication B
13
S
Signal element timing B
14
B
Byte timing B
The following illustration shows the X.21 network interface
connector which is located on the electronics module.
1
2
9
3
4
5
6
7
8
10 11 12 13 14 15
Figure B-9: X.21 Interface Connector on the Electronics
Module
V.25 bis Network
Interface
This section describes the V.25 bis network interface cable and
connectors.
The following illustration shows the cable supplied with all V.25 bis
systems. This cable connects the Communications board V.25 bis
network panel and a Data Unit.
For more speciÞc information, see the Concorde¥4500 AdministratorÕs
Guide.
B-15
PIN ASSIGNMENTS
V.25 bis
DA-15 connector
CTRL
A
PORT
1
CTRL
B
PORT
2
M-34 connector
Figure B-10: Cable Between the V.25 bis Network
Connection Panel and a Data Unit
The following table lists the pin assignments for the DA-15 and
M-34 connectors and shows the signal ßow.
Table B-11: Pin Assignments for Signal Flow Between the
DA-15 and M-34 Connectors
Signal
DA-15
(DTE)
Pin
Description
M-34
(DCE)
Circuit
Source
FG
Frame ground
1
(Not applicable)
A
SG
Signal ground
8
(Not applicable)
B
CTS
Clear to send
5
DCE
D
B-16
Table B-11: Pin Assignments for Signal Flow Between the
DA-15 and M-34 Connectors (Continued)
Signal
DA-15
(DTE)
Pin
Description
M-34
(DCE)
Circuit
Source
DSR
Data set ready
15
DCE
E
DTR
Data terminal ready
3
Concorde¥4500
H
Tx A
Transmit data A
2
Concorde¥4500
P
Tx B
Transmit data B
9
Concorde¥4500
S
Rx A
Receive data A
4
DCE
R
Rx B
Receive data B
11
DCE
T
SCR A
Serial clock receive A
6
DCE
V
SCR B
Serial clock receive B
13
DCE
X
B-17
PIN ASSIGNMENTS
RS-366A Network
Dialing Port
The following table lists the pin assignments for the RS-366A
network dialing port.
Table B-12: Pin Assignments for RS-366A Network
Dialing Port
Pin
B-18
Circuit
Description
1
(Not applicable)
Shield
2
DPR
Digit present
3
ACR
Abandon call and retry
4
CRA
Call request
5
PND
Present next digit
6
PWI
Power indication
7
SG
Signal ground
8
(Not applicable)
Unassigned
9
(Not applicable)
Reserved for automatic calling equipment
testing. These two pins should not be
wired in the data terminal equipment.
10
(Not applicable)
11
(Not applicable)
Unassigned
12
(Not applicable)
Unassigned
13
DSC
Distant station connected
14
NB1
Digital signal circuits
15
NB2
16
NB4
17
NB8
18
RC
Receive common
RS-366A Network Dialing Port
Table B-12: Pin Assignments for RS-366A Network
Dialing Port (Continued)
Pin
Circuit
Description
19
SC
Send common
20
(Not applicable)
Unassigned
21
(Not applicable)
Unassigned
22
DLO
Data line occupied
23
(Not applicable)
Unassigned
24
(Not applicable)
Unassigned
25
(Not applicable)
Unassigned
B-19
C
Electronics
Module
Connections
This appendix provides illustrations of the back panel of the
electronics module and includes illustrations of the connectors for
the Audio and Video boards and cabling for the boards.
Network Interface
Connections
Details of the following network interface connections are included
in this section:
❑
Switched-56
❑
V.35 or RS-449
❑
X.21 or V.25 bis
For more information on these network interfaces and how they
work, see Chapter 3. For information on how to connect to these
network interfaces, see the Concorde¥4500 AdministratorÕs Guide.
C-1
C-2
Slot
Board
B
A
7
8
DOC CAMERA
CAMERA DOCS
CAMERA DOC
DOK.-KAMERA
MIC B
MICRO B
MICRO B
MIKRO B
MAIN MONITOR
MONITOR PRINC
MONITEUR PRINC
HAUPTBILDSCHIRM
AUV MONITOR
MONITOR AUX
MONITEUR AUX
ZUS. BILDSCHIRM
LINE OUT
SALIDA
SORTIE
LIETUNG AUS
PHONE WALL
TELEFONO PARED
PRISE TELEPHONE
TEL.-WAND
AUDIO
6
PORT
D
PORT
C
5
PORT
B
PORT
A
RS-449/RS-232
B
A
8
B
8
A
8
1
4
CTRL
B
CTRL
A
4 WIRE
SW-56
COMMUNICATIONS
DTR
DCD
RTS
CTS
TXD
RXD
NS
PSDN
PORT 2
PRIVATE
NETWORK
RS-449
DTR
DCD
RTS
CTS
TXD
P RXD
O NS
R
T
PSDN
3
2
ARRAY PROCESSOR
1
Figure C-1: Back Panel for Switched-56 Connection
VCR OUT
SALIDA VIDEO
MAGNETO SORTIE
VIDEO AUS
VCR OUT
SALIDA VIDEO
MAGNETO SORTIE
VIDEO AUS
PHONE SET
TELEFONO
TELEPHONE
TEL.-APPARAT
VCR IN
ENTRADA VIDEO
MAGNETO ENTREE
VIDEO EIN
VCR IN
ENTRADA VIDEO
MAGNETO ENTREE
VIDEO EIN
LINE IN
ENTRADA
ENTREE
LIETUNG EIN
AUX GRAPHICS
GRAFICOS AUX
GRAPHIQUES AUX
ZUS. GRAFIK
AUX VIDEO
VIDEO AUX
VIDEO AUX
ZUS. VIDEO
MAIN CAMERA
CAMERA PRINC
CAMERA PRINC
HAUPTKAMERA
MIC A
MICRO A
MICRO A
MIKRO A
EXP AUDIO
AUDIO AMP
AUDIO AMP
ERW. AUDIO
KEYPAD
CONTROLES
PAVE DE CONTR
NUMERISCHER
TASTENBLOCK
S
OW
U I
T T
PC
UH
T E
D
5A RMS MAX
POWER
P5
REMOTE
ON/OFF
I
N
P
U
T
100-120/200-240VAC
50-60HZ
ELECTRONICS MODULE CONNECTIONS
Slot
Board
B
A
7
8
DOC CAMERA
CAMERA DOCS
CAMERA DOC
DOK.-KAMERA
MIC B
MICRO B
MICRO B
MIKRO B
VCR OUT
SALIDA VIDEO
MAGNETO SORTIE
VIDEO AUS
MAIN MONITOR
MONITOR PRINC
MONITEUR PRINC
HAUPTBILDSCHIRM
AUV MONITOR
MONITOR AUX
MONITEUR AUX
ZUS. BILDSCHIRM
VCR OUT
SALIDA VIDEO
MAGNETO SORTIE
VIDEO AUS
LINE OUT
SALIDA
SORTIE
LIETUNG AUS
PHONE WALL
TELEFONO PARED
PRISE TELEPHONE
TEL.-WAND
AUDIO
PHONE SET
TELEFONO
TELEPHONE
TEL.-APPARAT
VCR IN
ENTRADA VIDEO
MAGNETO ENTREE
VIDEO EIN
VCR IN
ENTRADA VIDEO
MAGNETO ENTREE
VIDEO EIN
LINE IN
ENTRADA
ENTREE
LIETUNG EIN
AUX GRAPHICS
GRAFICOS AUX
GRAPHIQUES AUX
ZUS. GRAFIK
AUX VIDEO
VIDEO AUX
VIDEO AUX
ZUS. VIDEO
MAIN CAMERA
CAMERA PRINC
CAMERA PRINC
HAUPTKAMERA
MIC A
MICRO A
MICRO A
MIKRO A
EXP AUDIO
AUDIO AMP
AUDIO AMP
ERW. AUDIO
KEYPAD
CONTROLES
PAVE DE CONTR
NUMERISCHER
TASTENBLOCK
6
PORT
D
PORT
C
5
PORT
B
PORT
A
4
CTRL
B
CTRL
A
COMMUNICATIONS
DIAL
CHAN
PORT 2
DIAL
CHAN
PORT 1
V.35 (RS-449)
3
2
ARRAY PROCESSOR
Figure C-2: Back Panel for V.35 (or RS-449)
Connection
B
A
8
B
8
A
8
RS-449/RS-232
1
S
OW
U I
T T
PC
UH
T E
D
5A RMS MAX
POWER
P5
REMOTE
ON/OFF
I
N
P
U
T
100-120/200-240VAC
50-60HZ
Network Interface Connections
C-3
C-4
Slot
Board
B
A
7
8
DOC CAMERA
CAMERA DOCS
CAMERA DOC
DOK.-KAMERA
MIC B
MICRO B
MICRO B
MIKRO B
VCR OUT
SALIDA VIDEO
MAGNETO SORTIE
VIDEO AUS
MAIN MONITOR
MONITOR PRINC
MONITEUR PRINC
HAUPTBILDSCHIRM
AUV MONITOR
MONITOR AUX
MONITEUR AUX
ZUS. BILDSCHIRM
VCR OUT
SALIDA VIDEO
MAGNETO SORTIE
VIDEO AUS
LINE OUT
SALIDA
SORTIE
LIETUNG AUS
PHONE WALL
TELEFONO PARED
PRISE TELEPHONE
TEL.-WAND
AUDIO
PHONE SET
TELEFONO
TELEPHONE
TEL.-APPARAT
VCR IN
ENTRADA VIDEO
MAGNETO ENTREE
VIDEO EIN
VCR IN
ENTRADA VIDEO
MAGNETO ENTREE
VIDEO EIN
LINE IN
ENTRADA
ENTREE
LIETUNG EIN
AUX GRAPHICS
GRAFICOS AUX
GRAPHIQUES AUX
ZUS. GRAFIK
AUX VIDEO
VIDEO AUX
VIDEO AUX
ZUS. VIDEO
MAIN CAMERA
CAMERA PRINC
CAMERA PRINC
HAUPTKAMERA
MIC A
MICRO A
MICRO A
MIKRO A
EXP AUDIO
AUDIO AMP
AUDIO AMP
ERW. AUDIO
KEYPAD
CONTROLES
PAVE DE CONTR
NUMERISCHER
TASTENBLOCK
6
PORT
D
PORT
C
5
PORT
B
PORT
A
CTRL
B
CTRL
A
COMMUNICATIONS
4
PORT
2
PORT
1
X.21
3
2
ARRAY PROCESSOR
1
S
OW
U I
T T
PC
UH
T E
D
5A RMS MAX
POWER
P5
REMOTE
ON/OFF
Figure C-3: Back Panel for X.21 (or V.25 bis) Connection
B
A
8
B
8
A
8
RS-449/RS-232
I
N
P
U
T
100-120/200-240VAC
50-60HZ
Audio and Video Board Connections
Audio and Video
Board
Connections
The following illustration shows the connections for the Audio and
Video boards.
KEYPAD
CONTROLES
PAVE DE CONTR
NUMERISCHER
TASTENBLOCK
MAIN CAMERA
CAMERA PRINC
CAMERA PRINC
HAUPTKAMERA
8
EXP AUDIO
AUDIO AMP
AUDIO AMP
ERW. AUDIO
AUX VIDEO
VIDEO AUX
VIDEO AUX
ZUS. VIDEO
A
7
8
A
MIC A
MICRO A
MICRO A
MIKRO A
AUX GRAPHICS
GRAFICOS AUX
GRAPHIQUES AUX
ZUS. GRAFIK
B
MIC B
MICRO B
MICRO B
MIKRO B
DOC CAMERA
CAMERA DOCS
CAMERA DOC
DOK.-KAMERA
B
8
LINE IN
ENTRADA
ENTREE
LIETUNG EIN
VCR IN
ENTRADA VIDEO
MAGNETO ENTREE
VIDEO EIN
VCR IN
ENTRADA VIDEO
MAGNETO ENTREE
VIDEO EIN
VCR OUT
SALIDA VIDEO
MAGNETO SORTIE
VIDEO AUS
VCR OUT
SALIDA VIDEO
MAGNETO SORTIE
VIDEO AUS
LINE OUT
SALIDA
SORTIE
LIETUNG AUS
MAIN MONITOR
MONITOR PRINC
MONITEUR PRINC
HAUPTBILDSCHIRM
PHONE WALL
TELEFONO PARED
PRISE TELEPHONE
TEL.-WAND
AUV MONITOR
MONITOR AUX
MONITEUR AUX
ZUS. BILDSCHIRM
A
B
PHONE SET
TELEFONO
TELEPHONE
TEL.-APPARAT
Audio
Video
Figure C-4: Connections to the Audio and Video Boards
C-5
Audio Board Connections
The following table shows the Audio board connection labels and
describes the functions of the connections.
Table C-1: Audio Board Connections
Connection Label
Function
Connects the wired keypad.
Connects the PowerMic microphone.
7
A 3-pin mini DIN that connects to an
optional microphone.
A
A 3-pin mini DIN that connects to an
additional optional microphone.
B
An RCA connection for an auxiliary line
input.
C-6
Table C-1: Audio Board Connections (Continued)
Connection Label
Function
An RCA connection that connects the
audio from a VCR to the Concorde¥4500.
An RCA connection that connects the
audio from the Concorde¥4500 to a VCR.
Connects to the internal speaker.
Connects the Concorde¥4500 to the
telephone wall outlet.
Connects the Concorde¥4500 to a
telephone.
C-7
Video Board Connections
The following table shows the Video board connection labels and
describes the functions of the connections.
Table C-2: Video Board Connections
Connection Label
Function
An 8-pin mini DIN that connects to the
main camera.
8
A
An 8 pin mini DIN that connects to an
auxiliary camera.
8
An 8-pin mini DIN that connects to an
additional auxiliary camera.
B
8
An RCA connector that connects to the
document camera.
An RCA connector that connects the video
from a VCR to the Concorde¥4500.
C-8
Table C-2: Video Board Connections (Continued)
Connection Label
Function
An RCA connector that connects the video
from the Concorde¥4500 to a VCR.
An RCA connector that connects video to
the main monitor.
A
An RCA connector that connects video to
the optional second monitor.
B
C-9
Audio and Video Board Cabling
The following illustration shows the cabling for the Audio and
Video boards.
Wireless keypad
(standard)
Wired keypad
(optional)
Document camera
(optional)
PowerMic
microphone
Play VCR
(optional)
8
KEYPAD
CONTROLES
PAVE DE CONTR
NUMERISCHER
TASTENBLOCK
Main
camera
MAIN CAMERA
CAMERA PRINC
CAMERA PRINC
HAUPTKAMERA
8
Record VCR
(optional)
EXP AUDIO
AUDIO AMP
AUDIO AMP
ERW. AUDIO
AUX VIDEO
VIDEO AUX
VIDEO AUX
ZUS. VIDEO
7
A
A
8
MIC A
MICRO A
MICRO A
MIKRO A
AUX GRAPHICS
GRAFICOS AUX
GRAPHIQUES AUX
ZUS. GRAFIK
B
8
Main
monitor
B
MIC B
MICRO B
MICRO B
MIKRO B
DOC CAMERA
CAMERA DOCS
CAMERA DOC
DOK.-KAMERA
LINE IN
ENTRADA
ENTREE
LIETUNG EIN
Speaker
Telephone
wall outlet
(optional)
VCR IN
ENTRADA VIDEO
MAGNETO ENTREE
VIDEO EIN
VCR IN
ENTRADA VIDEO
MAGNETO ENTREE
VIDEO EIN
VCR OUT
SALIDA VIDEO
MAGNETO SORTIE
VIDEO AUS
VCR OUT
SALIDA VIDEO
MAGNETO SORTIE
VIDEO AUS
LINE OUT
SALIDA
SORTIE
LIETUNG AUS
MAIN MONITOR
MONITOR PRINC
MONITEUR PRINC
HAUPTBILDSCHIRM
PHONE WALL
TELEFONO PARED
PRISE TELEPHONE
TEL.-WAND
AUV MONITOR
MONITOR AUX
MONITEUR AUX
ZUS. BILDSCHIRM
PHONE SET
TELEFONO
TELEPHONE
TEL.-APPARAT
A
B
Second
monitor
(optional)
Telephone
(optional)
Figure C-5: Cabling for the Audio and Video Boards
C-10
D
Control and Data Port
Communications
This appendix describes some background information necessary
for understanding data communications.
Word Length and
Parity
Word length refers to the number of bits that make up one word of
data. A word is usually 7 or 8 bits and includes the bits between the
start bit and the stop bit.
Parity is an error detection scheme in which the transmitter and
receiver are set to expect all incoming words to have an even or odd
number of bits set to binary one.
For example, suppose that the Concorde¥4500 and the peripheral
device are set for odd parity. The sender looks at the word to be
transmitted, and if it has an even number of ones, the sender sets the
Þnal bit in the word (the parity bit) to one so that the word will have
an odd number of ones. The receiver counts the number of ones in
the incoming word, including the parity bit. If there is an even
number of ones, the receiver logs an error.
The following Þgure illustrates the stop bits and the parity bits (P)
in some asynchronous data format examples.
D-1
CONTROL AND DATA PORT COMMUNICATIONS
7 Data bits with no parity
S
1
2
3
4
5
6
7
Stop bits
7 Data bits with parity
S
1
2
3
4
5
6
7
P
Stop bits
8 Data bits with no parity
S
1
2
3
4
5
6
7
8
Stop bits
8 Data bits with parity
S 1
2
3
4
5
6
7
8
P
Stop bits
Figure D-1: Asynchronous Data Format Examples
FF.Y.I.
YI
Synchronous
and
Asynchronous
Communication
D-2
The Concorde¥4500 handles 7 data bits with parity the same
way it handles 8 bits with no parity because the parity bit is
passed through an eighth bit.
Synchronous communication, also referred to as bit-synchronous
communication, uses a clock signal to regulate data transfer. The
clock signal is a square wave with a regular period or cycle that
matches the baud rate. Because the sender transmits one bit with
each cycle of the clock signal, this method of data transfer is called
synchronous communication.
Baud Rate
Asynchronous communication uses start bits and stop bits to regulate
data transfer. The sender precedes each word of data with a start bit
and ends each word with one or more stop bits.
When the receiver senses the arrival of start bits, it can identify the
real data that follows immediately after the start bits. The receiver
strips off the start and stop bits and moves the real data to its
destination. Because this data is not sent according to any regular
interval, this method of data transfer is called asynchronous
communication.
The following Þgure shows typical synchronous and asynchronous
data patterns.
Synchronous data
Transmit clock
Transmit data
1
2
3
4
5
6
7
1
2
3
4
5
6
7
8
9
Asynchronous data
Transmit data
Start bit
Parity and or
stop bits
Figure D-2: Synchronous and Asynchronous
Data Patterns
Baud Rate
The baud rate generally refers to the speed at which a unit of
information moves from one device to another. If the unit of
information is equal to one bit, then bit rate and baud rate are
equivalent (measured in bits per second or bps). Most asynchronous
D-3
peripheral devices support baud rates in increments such as 300,
600, 1200, 2400, 4800, 9600, or 38.4 baud.
Data Port End-toEnd Delay
The Concorde¥4500 introduces a certain amount of end-to-end
transmission delay.
End-to end transmission delay is due to the following factors:
❑
Buffering (especially with synchronous communication)
❑
Multiplexing (since data may accumulate for up to an entire
frame before being transmitted)
In certain applications, the effects of end-to-end delay may be
minimized by one of the following tasks:
Response Times
and Buffer Space
❑
Transmitting larger data packets, if the application requires
acknowledgment for each packet.
❑
Permitting more than one outstanding acknowledgment.
The Concorde¥4500 responds to the RTS signal and the DTR signal
from the DTE as follows:
❑
The CTS signal responds to a change in the state of the RTS
signal within 15 milliseconds.
❑
The DSR signal responds to the DTR signal within
15 milliseconds.
When the Concorde¥4500 input buffer space nears its capacity to
accept incoming data from a DTE device, the Concorde¥4500
deasserts the CTS signal, notifying the DTE to stop sending data.
The exact amount of buffer space remaining once the
Concorde¥4500 deasserts the CTS signal depends on the particular
port. Control port B has 256 bytes of available buffer space.
When the Concorde¥4500 deasserts the CTS signal, the maximum
safe response time for the DTE device to prevent loss of data
depends on the baud rate being used. Devices with lower baud rates
can have longer response times than devices with higher baud rates.
D-4
Flow Control Between DTE Devices
Flow Control
Between DTE
Devices
This section illustrates how the Concorde¥4500 ßow control scheme
regulates the ßow of data between the near-end and far-end DTE
devices connected to data ports on the Concorde¥4500.
The following Þgure shows typical devices involved in an end-toend communication.
Far End
Near End
Terminal
Concorde•4500
Output
buffer
Input
buffer
Output
buffer
Input
buffer
Input
buffer
Output
buffer
Input
buffer
Output
buffer
DTE
DCE
DCE
DTE
Concorde•4500
Host Computer
Figure D-3: Typical Devices Involved in End-to-End
Communication
During data transfer, data can be lost if the sender transmits more
data than the receiver can receive. Thus, communicating devices use
ßow control schemes to minimize lost data and save bandwidth for
audio and video signals. Such schemes enable the receiver to signal
the sender to stop sending data.
The Concorde¥4500 can use any of the hardware and software ßow
control methods described in the following section. The method
used depends on whether communication is synchronous or
asynchronous, and whether the ßow control direction is from the
Concorde¥4500 to the device or from the device to the
Concorde¥4500. Refer to the following table for a summary of the
ßow control methods supported by the Concorde¥4500.
D-5
Table D-1: Summary of Supported Flow Control Methods
Control Asserted
By
Method
Condition
Disabled by
Ignore Flow
Control?
Hardware
Clear to Send (CTS)
Near-end device
Nothing to send
RTS low
Yes
Buffer > 1/2 full
No
DTR low
Yes
Buffer > 1/2 full
No
Near end
Far end
Data Terminal
Ready (DTR)
Far-end device
Software
Xon/Xoff
Near end
Far end
Hardware Flow Control
Hardware ßow control uses modem control signals to stop and start
the ßow of data. The following Þgure illustrates the relationship
between hardware ßow control signals and the four devices that are
involved in synchronous communication: two Concorde¥4500
systems and two DTEs.
D-6
RX DTE
Yes
Input
buff full
DTR
RX Concorde 4500
TX Concorde 4500
No
Yes
DTR
DSR
No
Yes
1/
2
Yes
Lo
Data in
O/P buffer
No
No
DTR ?
Hi
Hi
Buf <
full
TX DTE
DSR
DSR
Hi
DSR
RTS
Lo
RTS
RTS
Lo
CTS
CTS
Hi
CTS
Lo
DSR
RX data
valid
RX data
invalid
Send
data
Buffer
data
Send
data
Buffer
data
Send
data
Buffer
data
Figure D-4: Typical End-to-End Data with Flow Control
The following table describes these modem control signals and how
they are implemented to accomplish ßow control in the
Concorde¥4500.
D-7
Table D-2: Modem Control Signals
Signal
Description
DTR
Data Terminal Ready. The terminal device asserts
the DTR signal to indicate that data can be accepted.
The terminal device deasserts the DTR signal to
indicate that it cannot accept data.
DSR
Data Set Ready. The Concorde¥4500 sends the DSR
signal to acknowledge the DTR signal from the
terminal device.
RTS
Request to Send. The terminal device asserts the
RTS signal when it is ready to send data to the
Concorde¥4500. If the Concorde¥4500 is able to
receive the data, it responds by raising the CTS
signal; the terminal device is now free to send the
data to the Concorde¥4500.
CTS
Clear to Send. The Concorde¥4500 uses the CTS
signal to control the ßow of data from the terminal
device. The Concorde¥4500 asserts this signal to
start data ßow and deasserts this signal to stop the
ßow. The Concorde¥4500 must Þrst receive an
asserted RTS signal from the terminal device. After
receiving this signal, the Concorde¥4500 asserts the
CTS signal. Data being transmitted while the CTS
signal is deasserted is buffered; if the buffer
overßows, the data is lost.
The Concorde¥4500 always uses the CTS method of
ßow control, regardless of whether the DTE uses or
ignores this signal.
Software Flow Control
Software ßow control is used only in asynchronous communication.
Control port B on the back of the DI board uses asynchronous
control to transmit data. Software ßow control uses American
Standard Code for Information Interchange (ASCII) codes to stop
and start the ßow of data.
D-8
ASCII codes DC1 and DC3 (decimal 17 and 19 in the ASCII code
table), provide the ßow control functions transmit on (or Xon) and
transmit off (or Xoff) respectively.
The Concorde¥4500 sends a DC1 (Xon) code to signal the device to
start or resume sending data. A DC3 (Xoff) code signals the terminal
device to stop sending data.
D-9
E
Connecting a VCR
This appendix shows you how to connect one or two VCRs to the
Concorde¥4500.
You can connect one or two VCRs to the Concorde¥4500 for
recording and playing a videotape. If you connect one VCR, motion
video can be sent from the VCR to the far-end videoconferencing
system, or the videoconference can be recorded. Connecting two
VCRs allows video to be sent from one VCR while the other VCR
records the videoconference.
The following instructions can be used for connecting a mono or
stereo VCR. If you are connecting a stereo VCR, make sure that you
plug the cables into the same side of the Line In and Line Out
connectors, either the left or the right side. Refer to the section
ÒConnecting a Stereo VCR.Ó
Connecting One
VCR
To connect one VCR to the Concord¥4500:
1. Power down the videoconferencing system.
2. Plug one of the RCA-to-RCA cables (that come with the VCR) from
the VIDEO IN connector on the VCR to the VCR OUT
connector on the Concorde•4500 Video board.
3. Plug the other RCA-to-RCA cable from the VIDEO OUT connector
on the VCR to the VCR IN
connector on the Concorde•4500
Video board.
E-1
CONNECTING A VCR
4. Plug one of the RCA-to-RCA cables (that come with the VCR) form
the AUDIO IN connector on the VCR to the VCR OUT
connector on the Concorde•4500 Audio board.
5. Plug the other RCA-to-RCA cable from the AUDIO OUT connector
on the VCR to the VCR IN
connector on the Concorde•4500
Audio board.
6. Plug the VCR power cable into the wall outlet and power up the
Concorde•4500.
Refer to the following illustration to connect the cables.
KEYPAD
CONTROLES
PAVE DE CONTR
NUMERISCHER
TASTENBLOCK
MAIN CAMERA
CAMERA PRINC
CAMERA PRINC
HAUPTKAMERA
8
EXP AUDIO
AUDIO AMP
AUDIO AMP
ERW. AUDIO
AUX VIDEO
VIDEO AUX
VIDEO AUX
ZUS. VIDEO
7
A
A
8
MIC A
MICRO A
MICRO A
MIKRO A
AUX GRAPHICS
GRAFICOS AUX
GRAPHIQUES AUX
ZUS. GRAFIK
B
8
B
MIC B
MICRO B
MICRO B
MIKRO B
DOC CAMERA
CAMERA DOCS
CAMERA DOC
DOK.-KAMERA
LINE IN
ENTRADA
ENTREE
LIETUNG EIN
AUDIO VIDEO
OUT
VCR IN
ENTRADA VIDEO
MAGNETO ENTREE
VIDEO EIN
VCR IN
ENTRADA VIDEO
MAGNETO ENTREE
VIDEO EIN
IN
VCR OUT
SALIDA VIDEO
MAGNETO SORTIE
VIDEO AUS
VCR OUT
SALIDA VIDEO
MAGNETO SORTIE
VIDEO AUS
LINE OUT
SALIDA
SORTIE
LIETUNG AUS
MAIN MONITOR
MONITOR PRINC
MONITEUR PRINC
HAUPTBILDSCHIRM
PHONE WALL
TELEFONO PARED
PRISE TELEPHONE
TEL.-WAND
AUV MONITOR
MONITOR AUX
MONITEUR AUX
ZUS. BILDSCHIRM
VCR
PHONE SET
TELEFONO
TELEPHONE
TEL.-APPARAT
Figure E-1: Connecting a VCR
E-2
A
B
Connecting Two VCRs
Connecting Two
VCRs
When two VCRs are connected, one is referred to as the Record
VCR, while the other is called the Play VCR.
To connect two VCRs to the Concorde¥4500:
1. Power down the videoconferencing system.
2. On the Record VCR, plug one of the RCA-to-RCA cables (that come
with the VCR) from the VIDEO IN connector on the VCR to the VCR
OUT
3. On the Record VCR, plug the other RCA-to-RCA cable from the
AUDIO IN connector on the VCR to the VCR OUT
connector
on the Concorde•4500 Audio board.
4. On the Play VCR, plug one of the RCA-to-RCA cables (that come
with the VCR) from the VIDEO OUT connector on the VCR to the
VCR IN
5. On the Play VCR, plug the other RCA-to-RCA cable from the AUDIO
OUT connector on the VCR to the VCR IN
connector on the
Concorde•4500 Audio board.
6. Plug the VCR power cable into the wall outlet and power up the
Concorde•4500.
Refer to the following illustration to connect the cables.
E-3
CONNECTING A VCR
KEYPAD
CONTROLES
PAVE DE CONTR
NUMERISCHER
TASTENBLOCK
MAIN CAMERA
CAMERA PRINC
CAMERA PRINC
HAUPTKAMERA
8
EXP AUDIO
AUDIO AMP
AUDIO AMP
ERW. AUDIO
AUX VIDEO
VIDEO AUX
VIDEO AUX
ZUS. VIDEO
7
A
A
8
MIC A
MICRO A
MICRO A
MIKRO A
AUX GRAPHICS
GRAFICOS AUX
GRAPHIQUES AUX
ZUS. GRAFIK
B
8
B
MIC B
MICRO B
MICRO B
MIKRO B
DOC CAMERA
CAMERA DOCS
CAMERA DOC
DOK.-KAMERA
LINE IN
ENTRADA
ENTREE
LIETUNG EIN
AUDIO VIDEO
OUT
VCR IN
ENTRADA VIDEO
MAGNETO ENTREE
VIDEO EIN
VCR IN
ENTRADA VIDEO
MAGNETO ENTREE
VIDEO EIN
IN
VCR OUT
SALIDA VIDEO
MAGNETO SORTIE
VIDEO AUS
VCR OUT
SALIDA VIDEO
MAGNETO SORTIE
VIDEO AUS
LINE OUT
SALIDA
SORTIE
LIETUNG AUS
MAIN MONITOR
MONITOR PRINC
MONITEUR PRINC
HAUPTBILDSCHIRM
PHONE WALL
TELEFONO PARED
PRISE TELEPHONE
TEL.-WAND
AUV MONITOR
MONITOR AUX
MONITEUR AUX
ZUS. BILDSCHIRM
Play VCR
PHONE SET
TELEFONO
TELEPHONE
TEL.-APPARAT
AUDIO VIDEO
OUT
IN
Record VCR
Figure E-2: Connecting Two VCRs
E-4
A
B
Connecting a Stereo VCR
Connecting a
Stereo VCR
To connect a stereo VCR to the Concorde¥4500, you must use the
following cables:
❑
Two 20-centimeter (8-inch) 1 RCA female to 2 RCA male
connector ÒYÓ adapter cables
❑
One 1.9 meter (6-foot) male RCA to male RCA patch cable with
4 RCA connectors on each end
These cables can be purchased at any electronics store. Use the
following illustration as a guide when you are connecting the VCR.
RCA Y adapter cable
VCR
L AUDIO R VIDEO
LINE IN
LINE OUT
RCA Y adapter cable
RCA-to-RCA patch cable
To Concorde•4500
Figure E-3: Connecting a Stereo VCR
Note: Even though the sound plays back over the speakers in
the Concorde¥4500, it is not truly stereo, because the
Concorde¥4500 is a mono system.
E-5
F
Frequently Asked
Questions
This appendix lists some of the questions that customers frequently
ask about the Concorde¥4500 videoconferencing system. You may
Þnd these questions and answers helpful when you are visiting a
site.
The following sections are grouped according to some of the more
common questions that the Technical Support center has answered.
F-1
FREQUENTLY ASKED QUESTIONS
Algorithms
Q. Are there published figures on compression induced delay?
A.Yes.
See the following table for approximate values for a call being
made from one Concorde¥4500 to another Concorde¥4500.
Table F-1: Compression Induced Delay
Network Interface
H.320 (Link 64-E) a
Frames Per
Second
Compression
Induced Delay
15 fps
350 milliseconds
30 fps
310 milliseconds
SG3 b
11 fps
450 milliseconds
SG4 c
15 fps
310 milliseconds
a. Assume CIF
b. Assume SG3 audio, not G.721
c. Assume G.728 or PT724 audio
Assume that for SG4 the audio algorithms are PT.724 or G.728
(low bit rate audio). If this is the case then there is no need to
break down delays by channel rate for rates of 128, 256, and 384
kbps. All delays are end-to-end.
F-2
Peripherals
Peripherals
Q. Can a 35” monitor be put onto a WorldCart?
A.Yes, a 35” monitor can be put onto a WorldCart only in the United
States and Canada.
Q. Does the Concorde•4500 support Annex-D graphics?
A. Yes, the Concorde•4500 does support Annex-D graphics; however,
the display is limited to 2 x CIF vertical and 1.5 x CIF horizontal.
The resolution of standard H.261 Annex-d graphics is 704
horizontal by 576 vertical. This resolution is 2 x CIF horizontal
and 2 x CIF vertical. Therefore, the total resolution of Annex-D
graphics is actually 4 x CIF.
The Concorde¥4500 is fully compliant with Annex-D graphic
protocols. The encoder sends 4 CIF sub-images to produce a
4 x CIF graphic. The decoder receives 4 CIF images to reproduce
the 4 x CIF graphic. However, the horizontal resolution is limited
to 512 pixels.
The limitation of the horizontal resolution is not linked to NTSC
or PAL resolutions, so it does not matter which one you have.
Q. Is there a smaller WorldCart?
A. Yes there is.
The part number is CART4.
Miscellaneous
Q. What is the maximum number of Speed Dial Entries?
A.There are 47 dual-line 25-digit numbers with full 6-character site
names. There are 69 dual-line 10-digit numbers with full 6-character
site names.
If any of the following conditions are true, a larger number of
entries is possible:
❑
Less than 6-character site names are used.
❑
Not all entries are dual-line.
❑
The number of digits per number is less than is stated above.
F-3
FREQUENTLY ASKED QUESTIONS
Q. On the wired keypad, can you switchhook an audio call? Can you do
the same with the wireless (IR) keypad?
A.You can switchhook an audio call with the wired keypad.
With the IR keypad, there is no way to switchhook an audio call. To
do this, you must go through the required menus.
Q. Is there a label kit that can be ordered to replace the Sony monitor
label?
A.Yes there is.
The part number is LBL-KIT.
F-4
G
Important
Information
This appendix addresses the types of questions that a Technical
Support person may ask a customer when the customer calls the
Technical Support center. Table G-1 lists the areas of information
that the Technical Support person may ask questions about.
If you are at a site servicing a call, it would be helpful if you could
copy and fill out the table for the customer. You should recommend
that this information be posted in a place where it is highly visible.
The customer may need to place a call in the future, and if so, the
information will be available.
G-1
IMPORTANT INFORMATION
Table G-1: Your Technical Support Information
Category
Description
Customer
Your companyÕs name.
Installation contact
name
Site contact for the CSE who will be
installing your system.
Network carrier
Your telephone company.
Video number
Telephone numbers for your
PictureTel system. You receive the
numbers through your local provider.
Analog telephone
lines available
Required if you are using the
telephone add-on feature or modem
access on IMUXs.
Network installed
and tested system
location (for a new
installation)
Has the network been installed?
Power/Network
within 6 feet of the
system (for a new
installation)
Is your power within 6 feet of the
system?
Switched-56
A switched-56 service is one that
provides data transmission at a speed
of 56 kbps per line. Is your service
Switched-56?
Are the jacks in the conference room
up and tested?
Complete the following if you have ordered an ISDN network service
NT1 - (Network
Termination Type 1)
A small box that attaches to an ISDN
BRI line that terminates the ISDN line
from the central ofÞce and provides
the interface into which you can plug
in the PictureTel system. Do you have
one?
Switch type
Switch type provided by the local
telephone company.
G-2
Your Information
Table G-1: Your Technical Support Information (Continued)
Category
Description
Service type
Service type provided by the local
telephone company.
Software revision
The software revision of your switch.
Service Provider ID
(SPID)
Alphanumeric numbers that uniquely
identify the services you ordered.
Also known as a label identiÞer.
Points to a particular location in your
telephone companyÕs central ofÞce
memory where details of your ISDN
service are stored.
Switched network
Network type providing the ability to
dial various sites. Do you have a
switched network?
Dedicated network
Network type providing one pathway
between two sites. Do you have a
dedicated network?
Your Information
Complete the following if your system is conÞgured with a V.35 or an RS-449 interface
Terminal
equipment
Telephone or other equipment
attached to the network line, for
example, ISDN, CSU/DSU, terminal
adapter.
Manufacturer
Adtran, Gandalf, or Motorola
Model number
Found on either the front or the back
of your terminal equipment.
Revision
Found on either the front or the back
of your terminal equipment.
G-3
Glossary
analog data
In telephone transmission, the data or signal being transmitted (voice, video, or image) is
very similar to the original signal. See also digital data.
Automatic Calling Unit (ACU)
A device used to dial a telephone; now built into smart modems.
bandwidth
The frequency range between the lowest and highest frequencies that are passed through a
component, circuit, or system. For example, the total usable bandwidth of a T1
communications facility is 1.544 Mbps or 24x64 kbps channels. Of this total bandwidth, a 384
kbps videoconference requires six 64-kpbs channels or a bandwidth of 384 kbps.
Bandwidth Manager
Divides a high-speed video transmission into multiple network channels; selects the
appropriate channels; individually dials each channel; and establishes, maintains, and
terminates the call.
Basic Rate Interface (BRI)
An ISDN interface that supports two 64-kbps bearer (B) channels and one signaling (D)
channel.
baud
Units of information transmitted per second. Baud is used as a means of matching
transmission and receiving speeds.
baud rate
Signaling rate (not necessarily the same as bits per second).
bit
A binary digit that represents the smallest unit of data information that a computer can
process. A bit represents either a 0 (known as a mark) or 1 (known as a space).
Glossary-1
byte
An eight bit unit also called an octet.
call records
The set of parameters that deÞne necessary information to place a videoconferencing call
through an IMX.
central ofÞce (CO)
The telephone switching ofÞce closest to the customer site. The central ofÞce serves
businesses and residences connected to its looped lines.
channel
In data transmission, a single path for transmitting electric signals between two or more
points.
channel service unit (CSU)
A device that interfaces between a communication network and data terminal equipment.
For example, a built-in CSU is used to terminate a 56-kbps network interface.
clear channel
A transmission path with the full bandwidth available to the user. The term is used primarily
for digital telephone company circuits that do not require some portion of the channel to be
reserved for telephone company control bits or synchronization.
clear to send (CTS)
An RS-232, RS-449 or V.35 control signal used to tell the transmitting device that the receiver
is ready to accept data.
clocking
An oscillator-generated signal that provides a timing reference for a transmission link. A
digital network typically has only one master clock.
codec
A generic term for a system that contains a procedure for encoding data from a native format
(known as the decoder) to another format (known as the encoder) and back again to the
native format.
coder
An entity that transforms data from a native format to another format.
A system board located in the Concorde¥4500 electronics module. This board supports all
network communications and loads and executes the system software that controls the
electronics module operation. It also controls all power-up and user-selectable diagnostics.
Glossary-2
data circuit-terminating equipment (DCE)
A term that refers to the network side of a communications link.
data terminal equipment (DTE)
A term that refers to the terminal side of a communications link.
data terminal ready (DTR)
An RS-232 signal that indicates the terminal is ready to communicate.
DB-25
The 25-pin connector ordinarily used for RS-232.
decoder
An entity that reconstructs data from one format back to its native format.
dedicated line
A connection between two pieces of equipment.
dedicated network
A permanent connection between two sites that carries high bandwidth digital signals. See
also switched network.
depacketization
A procedure in which application data (audio, video, and/or transparent user data) is
extracted from the lower level communication protocol data packets.
dialing port
An RS-366 port on the IMX that supports placing a videoconferencing call from a
Concorde¥4500 system.
digital data
Data in the form of any whole number (from 0 through 9). See also analog data.
DIN
Deutsche Industrie Norm
dual 56 kbps
A 112 kbps video transmission that uses two data lines at 56 kbps from the VCS to the
network equipment. See also Nx56 kbps.
dual 64 kbps
A 128 kbps video transmission that uses two data lines at 64 kbps from the VCS to the
network equipment. See also Nx64 kbps.
Glossary-3
Dual-Tone Multiple Frequency (DTMF)
The scheme for encoding digits with audible sounds used by TouchTone push-button
telephones.
echo canceler disable tone
A tone to disable voice echo suppression equipment used on networks that do not separate
data and voice trafÞc.
EIA RS-232
An EIA (Electronics Industries Association) serial interfacing standard for connecting
terminals, modems, and serial printers.
EIA RS-449
Generic 37-pin differential data interface; +/- 5 volts.
Electronics Industries Association (EIA)
A standards organization in the United States that specializes in the electrical and functional
characteristics of interface equipment.
field replaceable unit (FRU)
Any component or group of components within a system that can be replaced by a Þeld
service representative.
high-speed data port
A data port on the IMX that connects to PictureTel equipment and supports data rates of only
56 or 64 kbps.
IMUX port
A data port on the IMX that connects to PictureTel equipment and supports data rates of
Nx56 or Nx64 kpbs (56 to 366 kbps or 64 to 384 kpbs). These ports provide inverse
multiplexing.
IMX
A family of devices that provides switched digital network access for PictureTel
videoconferencing systems and M-8000 multipoint bridges.
inband signaling
Signaling made up of tones which pass within the voice frequency band and are carried
along the same circuit as the talk path that is being established by the signals.
integrated dynamic echo cancellation (IDEC)
A PictureTel proprietary audio standard which virtually eliminates echo while enabling full
duplex video.
Glossary-4
integrated services digital network (ISDN)
A network that provides or supports various telecommunications services, which provide
digital connections between the customer and the network interface.
inverse multiplexing
The capability to phase align and synchronize several high-speed network transmissions of
56 or 64 kbps into a single, high-speed videoconferencing stream for PictureTel equipment.
For example, six 64 kbps lines can be used to form the equivalent of a single 384 kbps stream.
ITU-T
International Telecommunications Union, Telecommunications Sector. A group that
establishes standards for telecommunications.
ITU-T H.320
A set of global standards, often referred to as Px64, that covers videoconferencing over ISDN
and switched-56 networks.
ITU -T V.35
A standard that governs data transmission at 48 kbps. In practice, V.35 is used for
synchronous transmission up to 2.048 megabits per second.
ITU -T X.21
A physical interface standard between data terminal equipment and data circuit-terminating
equipment for synchronous V-series modems, which includes an inband dialing capability.
jumper
A patch cable or wire that is used to establish a circuit; generally of a temporary nature; often
a ßexible narrow gauge or stranded wire.
kilobits per second (kbps)
A unit of data transmission rate equal to 1,000 bits per second.
loopback test
A diagnostic test for a speciÞc IMX subsystem. The test loops data back onto that subsystem.
M-8000
A PictureTel multipoint bridge.
megabits per second (Mbps)
A unit of data transmission rate equal to 1,000,000 bits per second.
modem
Modulator/demodulator. A device used to convert digital signals to and from analog.
Glossary-5
multiplexer
A device that divides the bandwidth of a channel by frequency or time to enable multiple
devices to share the channel.
multipoint bridge
A set of highly integrated, software-controlled data communications components that
enable more than two videoconference sites to participate in a videoconference.
multipoint videoconference
A videoconference in which more than two sites can participate at one time.
National Television System Committee (NTSC)
A television broadcast standard used in the United States, Japan, and parts of South America,
based on 30 frames per second video transmission.
Nx56 kbps
A video transmission with speed of multiples (either two, four, or six) of 56 kbps over a single
data line between the VCS and the network equipment.
Nx64 kbps
A video transmission with speed of multiples (either two, four, or six) of 64 kbps over a single
data line between the VCS and the network equipment.
parity
A process for checking whether bits of data have been altered during transmission of that
data. A check may be made for either even parity or odd parity.
Phase Alternate Line (PAL)
A television broadcast standard used in Europe, based on 25 frames per second video
transmission.
pic codes
Codes that allow you to dial onto the lines of a network carrier other than your own. Your
local telephone company can set up your pic codes.
Power-On-Self-Test (POST)
A series of tests performed by the videoconferencing system at power-on. These tests
examine such things as the Video board and the hard disk.
Primary Rate Interface (PRI)
An ISDN interface that supports 23 bearer channels for 1.544 Mbps in the United States and
Japan or 30 bearer channels for 2.048 Mbps in Europe.
Glossary-6
pulse dialing
A method of dialing on public switched telephone networks that uses a series of audible
pulses to represent individual telephone number digits. Each telephone number digit, 0-9, is
represented by the corresponding number of pulses.
RJ-11
The small, plastic, four-wire plug on a telephone set.
RS-232C
A set of standards that deÞnes the mechanical and electrical characteristics for connecting
DTE and DCE data communications devices. It also deÞnes what the interface does,
describes circuit functions, and connector pin assignments.
RS-366
Generic dialing (ACU) interface. See also ITU-T V.35 and EIA RS-449.
speed-dial number
A multidigit telephone number stored in abbreviated form for easy recall.
switched-56
A switched network interface operating at 56 kbps.
switched network
A series of points interconnected by public, voice-grade telephone lines or digital-grade lines,
with switching facilities or exchanges operated by public telephone companies. See also
dedicated network.
T1
An AT&T term for a digital carrier facility used to transmit a DS1 formatted digital signal at
1.544 megabits per second (United States and Japan).
unavailable seconds (UAS)
A measure of performance on a network access line. This measure indicates the number of
seconds a line was unavailable for a 15 minute duration.
videoconferencing
Two-way, full-motion, full-color electronic communication that permits two or more persons
or groups of people in different locations to engage in face-to-face audio and visual
communication.
Y/C
In Y/C video, the Y or luminance signal is separate from the C or hue and color saturation
signal. The luminance is recorded at a higher frequency and therefore more resolution lines
are available.
Glossary-7
Index
A
adapter, for PTZ camera B-1
baud rate, definition of D-3
peripheral devices D-3
Belden cable
9731 B-12
9737 B-12
amber LED 3-5
Annex-D graphics F-3
asynchronous communication, definition of
D-2, D-3
Audio board
cabling C-10
connectors C-10
functions of connectors C-6
audio call, switchhook F-4
audio transmission 3-26
audio, receiving 1-1
auto answer mode 3-17
Bit Error Rate 3-2
block diagram
Audio board 2-16
Communications board 2-10
Concorde¥4500 1-4
Data Interface board 2-20
functional 1-7
Graphics board 2-14
HAP-4 board 2-8
HAP-6 board 2-7
of Concorde¥4500 1-4
Video board 2-12
auto answering, with dialed and nondialed
networks 3-12
board level tests 4-3
auxiliary camera 1-12, 1-13
boards
Array processor 2-8
Audio 2-14
Communications 2-9
Data Interface 2-18
Graphics 2-11
telephone add-on 2-16
Video 2-11
B
Backplane
voltage test points 2-3
bandwidth, of the Concorde¥4500 3-26
board replacement 4-6
Index-1
buffer space D-4
camera failure, corrective actions 4-16
buffering D-4
components
optional 1-2
ordering and returning 5-6
standard 1-2
C
cable
adapter for V.35 network interface B-11
Belden 9731 B-12
Belden 9737 B-12
DC-37 to M-34 conversion 3-6
for document camera B-3
for PowerMic 100 B-5
for PTZ style camera B-1
for V.25 bis network B-16
isolating a problem with 4-30
PC data cable B-6
RS-366 3-6
TA3F (or TA3FL) 1-16
cabling guidelines B-9
call disconnect
definition of 3-13
for dialed calls 3-13
for nondialed calls 3-13
using V.25 bis network interface 3-23
using X.21 DCE 3-20
using X.21 network interface 3-14
call setup
dialed call 3-4
dialed, with auto answering 3-12
dialed, with manual answering 3-13
nondialed call 3-4
nondialed, with auto answering 3-12
nondialed, with X.21 DCE 3-19
using an X.21 network interface 3-14
using V.25 bis network interface 3-22
camera
auxiliary 1-13
document 1-1
PTZ 1-13
Index-2
compression induced delay F-2
connecting PC to Concorde¥4500 B-6
connecting stereo VCR E-5
connector
4-pin mini DIN B-1
8-pin mini DIN B-2
DA-15 to M-34 B-16
DC-37 to M-34 B-9
for lapel and tabletop microphone B-6
for PTZ camera B-1
four-wire CSDC B-8
switched-56 network interface B-8
X.21 network interface B-15
control ports 2-9
control signals, definition of 3-14
conversion adapter cables, definition of 3-6
currents, electrical 1-10
customer service. See technical support.
D
DA-15 connectors, pin assignments for B-16
data cable (D1) B-6
data circuit terminating equipment 3-14, 3-17
data flow control D-5
hardware D-6
software D-8
data signals, definition of 3-14
data transfer, losing data D-5
data unit 3-8
flipping cables 4-30
data unit keypad 3-25
flow control 3-26
daughter board
Graphics 2-11, 2-12
telephone add-on 2-16
four-wire CSDC interface connector pin
assignments B-8
FRU 1-2
DC-37 connector B-9
dedicated network, definition of 3-4
G
diagnostics tests, running remote 4-4
Graphics daughter board 2-12
dialed call, flowchart of events 3-10
graphics, Annex-D F-3
dialed network call, definition of 3-9
green LED 3-5
dialing ports
RS-366A 3-8
RS-366A, pin assignments B-18
H
DIP switch settings 4-20
document camera
resolution 1-14
zoom range 1-14
document camera cable B-3
DTE devices, flow control D-5
E
EIA RS-449 network interface 3-7
electrical current, verifying 4-24
electronics module 1-6
H.320 protocol 3-26
handshaking, definition of 2-21
heat dissipation A-4
horizontal resolution
of document camera 1-14
of PowerCam 100 1-13
I
illumination, of PowerCam 100 1-13
infrared signal 1-12, 1-16, 1-17
input voltages 1-9
installation problems 4-26
F
failing board at power-on 4-6
fan enclosure 1-11
fault code 4-5
fault log 4-5
internal microphone on wired keypad 1-19
J
jack
RJ-11 2-17, B-4
RJ-48S 3-5, B-8
Index-3
L
N
label kit F-4
network
dedicated 3-4, G-3
switched 3-4, G-3
LED
amber 3-5
green 3-5
log, fault 4-5
loopback tests
definitions of 4-33
local channel 4-34, 4-35
local video/audio 4-34
purpose 4-31
remote CSU 4-37
remote video/audio 4-34, 4-36
M
M-34 connectors B-16
manual answer mode 3-17
menus
Far-End tests 4-33
Near-End tests 4-32
microphone connectors B-6
microphone, in the wired keypad 1-19
mini DIN connector
4-pin B-1
8-pin B-2
network failure, corrective actions 4-13
network interface
boards, illustration 3-3
definition of 3-2
EIA RS-449 3-7
switched-56 3-5
V.25 3-8
V.25 bis B-15
V.35 3-6
X.21 3-4
no audio, corrective actions 4-11
no display on monitor, corrective actions 4-9
no system power, corrective actions 4-7
nondialed call 3-4
definition of 3-9
O
optional components 1-2
output voltages 1-10
P
modem control signals D-7
parity bits D-1
monitors, sizes 1-12
parity, definition of D-1
MPDMs 3-6
Pass-Fail status message 4-4
multiplexers, T1 3-6
peripheral failure, corrective actions 4-16
multiplexing D-4
picture-in-picture window 1-2
Index-4
pin assignments
8-pin camera control connector B-1
DA-15 B-16
for EIA RS-449 network interface B-11
four-wire CSDC interface connector B-8
lapel microphone connector B-6
PC data cable B-7
switched-56 network B-8
tabletop microphone connector B-6
V.35 network data port B-9
X.21 network data port
PIP 1-2
ports A and B 2-9
power supply 1-8
frequency range 1-9
input voltages 1-9
output voltages and currents 1-9
possible shutdown 1-10
short circuits 1-10
R
remote diagnostics tests, running 4-4
replacement label kit F-4
resolution
returning components 5-5
RJ-11 module jack B-4
illustration B-4
RS-366A dialing ports
pin assignments B-18
timeout values 3-10
RS-449. See EIA RS-449
running, remote diagnostic tests 4-4
S
PowerCam 100
horizontal resolution 1-13
zoom range 1-13
signal flow
for DA-15 and M-34 connectors B-16
for switched-56 network 3-5
PowerMic
illustration 1-15
using more than one 1-15
signals
control 3-14
data 3-14
power-on
board failure 4-6
illustration 4-8
Pass-Fail status message 4-4
self-test 4-4
verifying 4-4
software cartridge 1-8
PTZ camera 1-13
pulse dialing 3-5
Sony monitor, replacement label kit F-4
specifications
audio A-6
electrical A-2
environmental A-3
network A-6
physical A-1
video A-4
speed-dial entries F-3
Index-5
SPID, definition of G-3
V
standard components 1-2
V.25 network interface 3-8
stop bits D-1
V.35 network interface 3-6
switched network, definition of 3-4
switched-56 network standards 3-2
VCR
connecting one E-1
connecting stereo E-5
connecting two E-3
switchhook audio call F-4
VCR failure, corrective actions 4-18
synchronous communication, definition of
D-2
verifying
electrical current 4-24
power-on 4-4
switched-56 network interface 3-5
system block diagram 1-4
system boards
Array processor 2-5, 2-8
Audio 2-14, 2-16
Communications 2-9
Data Interface 2-18, 2-20
illustration 2-4
location 2-4
Video 2-11, 2-12
Video board
cabling C-10
connectors C-10
functions of connectors C-8
video transmission 3-26
voltage test meter 2-2
voltage test points 2-2, 2-3
system failure, fault log 4-5
system warning messages 4-21
W
warning messages 4-21
T
wired keypad B-4
T1 3-6
wireless keypad, DIP switch settings 4-20
technical support G-1
word length, definition of D-1
technical tips 4-26
word, definition of D-1
telephone add-on board 2-16
WorldCart 1-6, F-3
terminal adapter, problems with 4-30
timeout values, definition of 3-10
X
tools, required 4-2
X.21 network interface 3-4
transmission delay, end-to-end D-4
troubleshooting procedures 4-6
Index-6
Y
Y adapter, for PTZ camera B-1
Z
zoom range
Index-7

Concorde 4500 Servicing Guide

Transcription

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