User's Manual

C-5000 COMMUNICATION MANAGEMENT CONTROLLER

INSTALLATION MANUAL

Publication No. 150-041118 Page 4-21

Rev C Section 4 –Electrical Installation

May 2006

Pin(s) - Signal Name

29 – AUDIO GND

Used for grounding shields. There is not separate digital and analog grounds

within the C-5000 so all shields can be connected to this pin. All shields should

also be connected to the Backshell of the connector and then grounded to the

aircraft frame.

30 - MIC HI OUT

High side of the transmit voice audio that connects to the RT-5000 input pin MIC

HI IN (pin Y). The pin along with MIC LO/PTT OUT should be connected using

shielded wire.

31 - UNSQL MN RCV AUDIO IN

Single ended audio line that inputs unsquelched receiver audio from the RT-5000

Main Receiver into the C-5000. When the RT-5000 is using the external

encryption device at the C-5000, the main receiver audio from this input is routed

to the encryption device for decoding encrypted signals. It should be connected

inside a shielded cable to RT-5000 WIDE BAND MN RX AUDIO OUT (pin q).

33 -

This active low input pin holds the MIC LO/PTT OUT line low in order for external

devices to send a turn off message. No application for this pin is currently

available.

34 - IN SPARE #3

Spare input pin.

36 - IN SPARE #2

Spare input pin.

37 - GROUND

This ground performs the same function as CONTROL GROUND pin 20. Either

or both of these two pins can be used for providing a signal ground between the

C-5000 and RT-5000.