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User's Manual

ManualsBrandsDavid Clark ManualsElectronicsDigital Intercom Wireless Gateway containing DECT transceiver (UPCS)
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6. Power Cable
The C91-20PW is a 20-foot cable used to provide power to the 9100 Digital Intercom System. It has a
connector on one end and the other end requires the installer to prepare. It is important to choose a
power “pick-off” point which can provide 10 amperes of current at a voltage between 11-30VDC. Direct
connection to a 10-Amp fuse/circuit-breaker is preferred.
Parts/Tools Required
C91-20PW Power Cable (40892G-02)
o Includes David Clark 10-Amp Fuse kit (41090G-22)
Power pick-off point (circuit breaker/Fuse box, 11-30VDC)
Soldering iron/Solder
Wire terminals
Wire cutters/ Wire strippers
Tape Measure
Wire ties
Procedure
Determine the location of a 10-Amp circuit breaker to be used and how to connect to it (solder,
screw terminals, lugs, etc.).
If only a higher-amperage circuit breaker is available, it may be used, but the David Clark 10-
Amp Fuse Kit must also be used.
Determine the location of the 11-30VDC and Ground pick-off points.
Determine the path of the cable between the power source and the Master Station. The cable
should be routed using under-deck conduits and be as far as possible from radio antenna coax
cables and anywhere water may collect.
Measure the length of cable necessary, adding 3 ft as a service loop.
If necessary trim the length of the cable to the length determined in the previous step, making
sure to trim the UN-PREPARED end of the cable.
Route the cable. Use wire ties where necessary.
Connect the cable to the power jack on the Master Station. To connect the cable to the Master
Station, align keyways and push. Then firmly turn collar clockwise until it locks into place.
Pull
back gently on the cable to ensure connector is properly locked.
Before continuing, ensure that power is shut off to the point where you are going to
connect the power cable!
Using the wire cutters and wire strippers, prepare the end of the cable as necessary for your
installation.
If using the David Clark 10-Amp Fuse Kit, please see 10. Fuse Kit for assembly instructions.
Connect the cable to the power source