Installation
Step 5.
Observing polarity requirements, wire-wrap the twisted pair from each Multi-Link
Tele-
phone to
the
appropriate Line-Link Module terminals representing their assigned physical
number. Refer to
the Physical Numbers Layout Planning Worksheet
and the appropriate
wiring diagram
from
the following list for stations equipped with Multi-Link Telephones:
KM0681
Speaker and Priority Switch
KM0684
DTMF Keypad
KM0684
Display
Step 6.
Step 7.
Step 8.
Step
9.
Connect the shielded pair from the “C” connector of each
TC4200
VFD (Vacuum Fluorescent
Display) and the
"Y"
and “B” terminals of each display telephone’s modular connector to the
appropriate LCD 1 or 2 inputs on the
MI0
(Main Input/Output Module in the TC4001).
Refer to the following drawings as appropriate.
KM0674
KM0674
KM0717
KC1476
TC400 1 Wiring Diagram
Modular Receptacle Display Phone detail
66E
Junction Box
TC4200
Vacuum Fluorescent Display
If
TM432 Graphic Annunciator Modules
(GAM)
are installed, ensure their power is off and
connect a shielded pair from the appropriate MI0 graphics driver to the first GAM module (in
the first or second module chain) as required to achieve the desired indication (described
below). Refer to Drawing KM0674 for wiring information.
Wire Graphics 1 to the first GAM module in one chain to indicate
Call-ins.
Wire Graphics 2 to a the first GAM module in a second module chain to show lines
in use.
All TM432
GAMs
in
a
chain
must be installed in the same location.
The recom-
mended installation for the modules and the lamp power supply is in the lamp
cabinet with only a shielded data line to the main equipment rack.
Pulsating
indications is another option and requires a
special pulse generator,
producing
5 Vdc logic pulses, between ground and the first Graphics Annunciator
Module.
Remove each LLM which supports an Interconnect Line,
a VCM, or a Special
Page Line.
Then, locate the
“Ul” line hybrid associated with these lines and ensure
pin
3
is cut.
This
will prevent the
90
Vrms ring signal from damaging the
COAs
or other modules. This step
should have been performed in the factory for factory installed TC4 160
VCMs
and
TC417
1
COAs.
Refer to the main wiring diagram KM0674 and verify all other connections (audio control
panels, power amps, system clock, etc.) have been properly made.
Wherever
possible, these
are
factory
installed. However, large amplifiers may be temporarily removed from a rack for
shipment. If so, they should be mounted and connected to existing wiring.
©
1989
Rauland-Borg
Corporation
(Orig.
10/88;
Rev.
l/89)
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