User's Manual

C-5000 COMMUNICATION MANAGEMENT CONTROLLER
INSTALLATION MANUAL
Publication No. 150-041118 Page 4-93
Rev C Section 4 –Electrical Installation
May 2006
Pin(s) - Signal Name
13, 14, 15, 16 - AUDIO AND SIDETONE HI AND LO
These wires are provided separately for those systems that have separate
transmitter sidetone circuits. They should be paralleled when driving a speaker
directly. 10 Watt audio rated transceivers are not accommodated. In the case of
the 100 mW transceivers, the audio and sidetone outputs (output impedance of
600 Ohms) must be set for 7.8 Vrms into 600 Ohms.
54 - DF DISABLE
This line will disable the linear IF inside the unit and provide superior squelch
action and sensitivity when connected airframe ground. It should be permanently
grounded at the mounting rack when DF equipment is not installed in the aircraft.
If used with DF equipment, this line must be open during Direction Finding
operations.
19 - DF AUDIO
Provides an audio output for use with DF equipment requiring AM receiver
response. With an output impedance of 500 Ohms, the DF Audio output can
supply 400 mVrms open circuit with an RF signal modulated 50% at 1000 Hz.
When the RT-7200 or RT-9600(F) is used in conjunction with the Collins DF301E
automatic Direction Finder, knowledge of the Transceiver modulation phase
delay at
5.68 kHz is necessary for proper DF301E compensation. This phase information
is found on a label on the rear panel of the RT-7200, or RT-9600, RT-9600F.
For DF or ADF systems designed to be used in conjunction with FM receivers,
use UNSQUELCHED MAIN AUDIO as the audio connection from the transceiver
to the DF or ADF unit.
12 - UNSQUELCHED MAIN AUDIO
Buffered output of the main FM receiver, unaffected by squelch action. Provided
for use with external audio decoders. Standard modulation produces 0.58 Vrms
into 1k Ohm or greater impedance. Do not load this output with less than 600
Ohms.
30 - UNSQUELCHED GUARD AUDIO
Buffered output for the guard receiver, unaffected by squelch action. Provided for
use with external audio decoders. Standard modulation produces 0.58 Vrms into
1k Ohm or greater impedance. Do not load this output with less than 600 Ohms.
26 - MAIN AUDIO INHIBIT
When grounded, will mute audio outputs from the main receiver.