Note: Verify that the C-5000 Serial RT Card is installed for this interface.
Pin(s) - Signal Name
1 - DIGITAL SHIELD
Shield ground connection for RS-422 CONTROL TX H and CONTROL TX L lines.
Normally not used.
2 - RS-422 CONTROL TRANSMIT LO
This pin is the active low sense serial data output and meets EIA RS-485 voltage
levels. The data from this output must be connected to the RT-5000 input pin
RS-422 CTRL RX LO (pin L).
3 - ON/OFF
When this output is pulled to ground, the power supply in the RT-5000 is
enabled and the transceiver will turn on. This must be connected to pin W of the
RT-5000.
4 - RS-422 CONTROL TRANSMIT HI
This pin is the active high sense serial data output and meets EIA RS-485 voltage
levels. The data from this output must be connected to the RT-5000 input pin
RS-422 CTRL RX HI (pin M).
5 - RS-422 CONTROL RECEIVE LO
This pin is the active low sense serial data input and meets EIA RS-485 voltage
levels. This input must be connected to the RT-5000 output pin RS-422 CTRL TX
LO (pin K).
7 - IN SPARE #1
Spare input pin.
8 - RS-422 CONTROL RECEIVE HI
This pin is the active high sense serial data input and meets EIA RS-485 voltage
levels. This input must be connected to the RT-5000 RS-422 output pin CTRL TX
HI (pin k).
10, 12 - RT HEADSET HI / LO
This output will provide the primary voice band receive audio
output.
11 - MIC LO/PTT OUT
Low side of the microphone audio that connects to the RT-5000 input pin MIC
LO/PTT IN (pin Z). This pin floats during receive mode and goes to ground
when a transmit condition occurs. Audio on this pin along with MIC HI is the
voice audio used to modulate the RT-5000.
13 - VOICE AUDIO HI IN
Input pin that gets voice bandwidth receive audio from the RT-5000. This pin
must be connected to the RT-5000 AUDIO HI output (pin j).
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