EIM/2OOS DICTOGRAPH ESSENTIAL WIRING

EIM/2OOS
H4
DICTOGRAPH
ESSENTIAL WIRING
_E I PI/200 5
INSTALLATION
1.
The Plainboard should be sited as near as possible to the centre of the
installation. Cable runs to master instruments should "spur" off
individually from the mainboard, whilst those to substations should
"spur" off from the mainboard uiith a number of substations on each spur.
2.
Power Unit K10029K should be fixed adjacent to the mainboard and fed via
Fuse Unit K6B33L mounted on Box Unit, moulded, 2 plate K6B32A together
with a Socket Unit, mains K6B31D.
3.
On 10 and 14 way single master, and
25 pair Cable K322BA only is used.
any one spur is as follows:10 way single master substation
10 way double master substation
14 way single master substation
10 way double master installations,
The maximum amount of substations on
10
5
6
4.
In the case of 14 way double master installations 35 pair Cable K3217H
is used throughout for both substation and master feeds, the maximum
amount of substations on any one spur being 6.
5.
The cable used between the mainboard and Power Unit K10029K is K3209H
10 pair.
6.
The cable from the master instrument to Power Unit K1759A is K3204G
2 pair, one pair being left spare for use if the Engaged/Enter facility
is required.
7.
The instrument junction boxes come wired for 20 pairs but an additional
Strip, Terminal K1912EZ with 10 pairs is available for teeing through
other substation master pairs, this is screwed on to the tapped holes
provided on the right-hand side of the junction box. When using these
additional terminal strips, both wires should enter on one side only,
not one wire in and one out as is the usual practice.
6.
When wiring the mainboard all pairs that are terminated will be
the relevant pairs of other cables, no jumpering being needed.
tails should be left long enough to reach the furthest point of
board, so that at a future date if alterations have to be made,
wires will be long enough to reach any tag.
teed to
The cable
the
the
Excess wire should be fashioned into a reasonable cable form, with an
occasional tie.
9.
Cable Allocations:R )
( P.U. K10029K to Plasters
z"
- 3 bunched pairs each
;
I~
_
( P.U. K10029K to Substations
R+ P.U. K10029K to Substations
R- P.U. K10029K to Substations
P.U. K10029K to Subs and Plaster
PIC Plaster to Substations
' Line pairs (Plaster circuits)
_
6
j
- 1 pair
- 1 bunched
- 1 bunched
- 1 bunched
- 1 bunched
- 1 pair
Substation lines
- 1 pair
P.U. K1759A to associated Plaster
- 1 pair.
pair
pair
pair
pair
DICTOGRAPH 69
CABLING
£11*1/2006
v_.
SUBSTATION CABLES
PIASTER CABLES
2 x 13
Pairs 1-13 Home Lines
"
14-19 master Lines (D
"
20-25flastar Lines (2)
"
26-29 Spares
"
30-35 Batteries
2 x 13
Pairs 1-13
14-25
26
27-35
2x9
Pairs 1-9 Home Lines
"
10-14 Master Lines (1)
"
15-19 Plaster Lines (2)
"
20-25 Batteries
2x9
Pairs 1-9 Substation Lines
"
10-15 Spares
1 x 14
Pairs 1-14 Home Lines
"
15-19 Plaster Lines
"
20-25 Batteries
1 x 14
1 x 10
Pairs 1-10 Home Lines
"
11-20 Master Lines
"
21-25 Batteries
1 x 10
Pairs 1-10 Substation Lines
"
11-16 Spares
" 17-25 Batteries
Substation Lines
Spare
I"l1-r<!2
Batteries
"
16
"
17-25 Batteries
Pairs
mi-i*i2
1-14 Substation Lines
"
15-16 Spares
"
17-25 Batteries
NOTE 1
14
The maximum number of Plaster Lines that can ba used on any Substation
cable are as indicated above.
NOTE 2
flodular Junction Box Sizes for the respective sizes of installations ars
as follous:2
1
2
1
x 13
x 14
x 9
x 10
=
=
=
=
60
50
40
30
pair,
pair,
pair,
pair.
NOTE 3
The maximum number of Substation cable spurs which can be terminated on
the Plainboard is four.
NOTE 4
Layout of a typical flainboard using a modular Junction Box is shown
overleaf. (Example shown is a 60 pair Box for a 2 x 13 way master
installation.)
Contd/.
EIM/2006
TYPICAL
MCI
MC2
LAYOUT OF MAINBOARD
Mr Mi
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- HOME
LINE -
88888888888888888888
888888 88888888888888
- SPECIAL
FACILITIES
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
+
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
-MASTEB i - VS •
8 8 8 8 8 8 8 8 ® 8 8 8 ® 8 6 > 8 8 8 8 ®
88S8®8888®8888888888
•WASTER 2-S/S -
/—MUTED I-S/S—s
PRO
PAII
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
_,
-MASTER J-S/S-
8 8 8 8 8 >68 8 8 8 8 8 8 8 8 8 8 8 8 8
8888 8 €
) & 8 ® 8 S ® 8 8 8 88888
DICTOGRAPH 69
CABLING
EIJV2006
SUBSTATION CABLES
PIASTER CABLES
2 x 13
2 x 13
Pairs 1-13 Substation Lines
"
14-25 Spare
Pairs 1-13 Home Lines
"
14-19 Waster Lines (1)
"
20-25 Plaster Lines (2)
"
26-29 Spares
"
"
26
"
27-35 Batteries
m-P12
30-35 Batteries
2x9
Pairs 1-9 Home Lines
"
10-14 Waster Lines (1)
"
15-19 Plaster Lines (2)
"
20-25 Batteries
2x9
Pairs
1 x 14
Pairs 1-14 Home Lines
"
15-19 master Lines
"
20-25 Batteries
1 x 14
1-9 Substation Lines
"
"
10-15 Spares
16
ni-H2
"
17-25 Batteries
Pairs 1-14 Substation Lines
" 15-16 Spares
" 17-25 Batterias
1 x 10
Pairs 1-10 Substation Lines
" 11-16 Spares
1 x 10
Pairs 1-10 Home Lines
"
11-20 Raster Lines
"
21-25 Batteries
"
17-25 Batteries
NOTE 1
14
The maximum number of Plaster Lines that can be used on any Substation
cable are as indicated above.
NOTE 2
Modular Junction Box Sizes for the respective sizes of installations
as follous:2
1
2
1
x 13
x 14
x 9
x 10
60
50
40
30
are
pair,
pair,
pair,
pair.
NOTE 3
The maximum number of Substation cable spurs which can be terminated on
the dainboard is four.
NOTE 4
Layout of a typical Flainboard using a nodular Junction Box is shoiun
overleaf. (Example shown is a 60 pair Box for a 2 x 13 way master
installation.)
Contd/.
DICTOGRAPH 69
EIM/2O07
INSTRUMENT
SINGLE MASTER SUBSTATIONS
DOUBLE
K258E 1 K26OF
MASTER SUBSTATIONS K2S9B .$. K26ID
J4
X
NOTES:I.
INSERT STSAP TO OVERATE BUZZER WHEN MASTER
2
EXTENSION
3.
WHEN EXTENSION
BELL TO BE
CONNECTED TO
BELL IS REQUIRED. ADD
CALLS
AN ENGAGED SUBSTATION
EB 4 R »
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DIS -»(
CIRCUITS
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MASTER
INSTRUMENTS
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DICTOGRAPH 69 - FACILITIES
ENGAGED - ENTER
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1. KN- ENTER KEY OPERATED WHEN HANDLE
MOVED DOWNWARDS
LAMP
IZ»($CENTER
12, (S J ENGAGED
SIGNAL
^
KG 'ENGAGED KEY OPERATED
HANDLE MOVED UPWARDS
WHEN
BOTH ACTIONS ARE ON ONE KEY
FITTED TO MASTER INSTRUMENT
K895A
2. SINCE ENTER KEY HAS LOCKING ACTION
INSTRUMENT BUZZER SOUNDS WHILST
EIP1/2DOB
DICTOGRAPH INSTRUMENTS
Adjustments of Mechanisms
Due to the absence of spring buffers on key springsets
on Dictograph instruments, it is not possible to
provide precise adjustment data. Adjustment and
contact cleaning should be carried out using tools as
follows:K9439E
Adjuster, Spring, Heavy Duty
K9440H
Cleaner, Contact, Steel Wire
The major cause of trouble u/ith these springsets is
high resistance contacts, occurring mainly on those
keys which are less frequencly used.
Contact clearance should be approx 1/16" and the
springset action should be adjusted to give maximum
contact follow to provide a good self-cleaning action,
any adjustment being carried out by bending the
spring(s) at the root. The lever spring should have
sufficient tension to minimise free movement of the key
handle when it is in the unoperated (centre) position,
Baking care -to ensure that all key handles in one row
remain as nearly in line as possible.
In the case of "double-banked" instruments, it will be
necessary to separate the two chassis sections in
order to gain access to the springsets. This can be
done by removing the trip bar link securing screw (on
Substations only) and the four screws which hold the
two sections together; the instrument can then be
"unfolded" and the two sections positioned "back to
back". With the older type of instrument, i.e. with
vertical front panel, it will also be necessary to
remove the flex clamp before the two chassis sections
can be opened into the back to back position.
DEC. 77
ISSUE 2