User's Manual

C-5000 COMMUNICATION MANAGEMENT CONTROLLER
INSTALLATION MANUAL
Page 4-20 Publication No. 150-041118
Section 4 – Electrical Installation Rev C
May 2006
Pin(s) - Signal Name
18 - EXT XMT AUDIO OUT
This output is a single ended audio output to the RT-5000 that carries wide band
audio to the RT-5000. Normally the audio on the pin comes from an external
encryption device connected to P500 of the C-5000 and is the encrypted transmit
audio from that device. Connect this pin in all installations even though an
external encryption box is not used. Use shielded wire.
19 - GROUND
General purpose ground. Not a required pin for installation.
20 - CONTROL GROUND
Provides for ground connection between the control head and the RT-5000.
This pin is very important to establish a common signal ground between
the units. It should be connected to RT-5000 pin D.
21 - UNSQL GD RCV AUDIO IN
Single ended audio line that routes unsquelched receiver audio from the RT-
5000 Guard Receiver to the C-5000. When the RT-5000 is using the external
encryption device at the C-5000, the guard receiver audio from this input is
added inside the C-5000 to the decoded audio from the MAIN receiver so that
both MAIN and GUARD messages can be received simultaneously. It should be
connected inside a shielded cable to RT-5000 WIDE BAND GD RX AUDIO OUT
(pin w).
22, 23, 24 28, 32, 35 – SPARE
Spare pins.
25 - RESERVED OUT SPARE B
Reserved spare output.
26 - VOICE AUDIO LO IN
Low side of the voice band receive audio that comes from the RT-5000. Use
shielded wire.
27 - RESERVED OUT SPARE A
Reserved spare output.