C-5000 COMMUNICATION MANAGEMENT CONTROLLER
INSTALLATION MANUAL
Page 4-22 Publication No. 150-041118
Section 4 – Electrical Installation Rev A
Sep 2001
(gg) AUDIO HI (Pin j)
This is the high side differential audio output. It can drive a 150 Ohm load to 100
mW and a 600 Ohm load to 25 mW. 3 dB bandwidth is 300 Hz to 3 kHz.
(hh) AUDIO LO (Pin k)
This is the low side differential audio output. It can drive a 150 Ohm load to 100 mW
and a 600 Ohm load to 25 mW. 3 dB bandwidth is 300 Hz to 3 kHz.
(ii) AUDIO SHIELD GND (Pin m)
This ground is for shielding the audio outputs.
(jj) EXTRA WIDE BAND MAIN RX AUDIO (Pin n)
This output is the single ended extra wide band audio output. It is capable of driving
a 2k Ohm impedance and has a 3 dB bandwidth of 1 Hz to 40 kHz. The output is
adjustable from .1 Vrms to 1.5 Vrms and set to .6 Vrms.
(kk) MAIN SQUELCH DISABLE (Pin p)
When this input is pulled to ground, the main squelch conditions are overridden.
(ll) WIDE BAND MAIN RX AUDIO (Pin q)
This output is the single ended audio output. It is capable of driving a 2k Ohm
impedance and has a bandwidth of 1 Hz to 27.5 kHz.
(mm) DF ENABLE (Pin r)
Grounding this input enables the DF audio output.
(nn) DF AUDIO (Pin s)
This output produces an output proportional to the AM signal. The output has a 3 dB
bandwidth of 1Hz to 10 kHz. The output will drive a 2k Ohm impedance. The output
is adjustable from. 1 Vrms to 1.5 Vrms and set to .6 Vrms.
(oo) RS232-RTS (Pin t)
This pin is used to transfer information to the MTM guard.
(pp) HOMING SIGNAL STRENGTH (Pin u)
This output produces an output based on the signal strength that varies between 0
and 8 VDC, and is capable of driving a 2k Ohm load. This signal has a 3 dB
bandwidth between DC and 50 Hz.
(qq) MN RX 180 ENABLE (Pin v)
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