User`s manual

100-M0171X3 19 of 95
GMS Inc. doing business as Cobham Tactical Communications and Surveillance
www.cobham.com/tcs
Table 4 – Recommended VHDCI mating connector with Cable
Manufacturer Part Number
MOLEX
79918-0080
Table 5 – I/O - Control VHDCI-68 Connector Pin Out
Pin Signal Notes
1 GND Digital GND
35 GND Digital GND
2 RS232 Data RX1 RS232 Port 1
36 RS232 Data TX1 RS232 Port 1
3 RS232 Data RX2 RS232 Port 2
37 RS232 Data TX2 RS232 Port 2
4 GND Digital GND
38 GND Digital GND
5 AUDIO 1 DIFF P Positive AUDIO input 1
39 AUDIO 1 DIFF N Negative AUDIO input 1
6 AUDIO 1 BIAS Microphone 1 Bias Voltage (+1.5 volts)
40 AUDIO 2 BIAS Microphone 2 Bias Voltage (+1.5 volts)
7 Factory only use – leave this pin open
41 Factory only use – leave this pin open
8 AUDIO GND GND for Audio Signals
42 AUDIO GND GND for Audio Signals
9 Factory only use – leave this pin open
43 Factory only use – leave this pin open
10 AUDIO 3 BIAS Microphone 3 Bias Voltage (+1.5 volts)
44 AUDIO 4 BIAS Microphone 4 Bias Voltage (+1.5 volts)
11 AUDIO 2 DIFF P Positive AUDIO input 2
45 AUDIO 2 DIFF N Negative AUDIO input 2
12 AUDIO GND GND for Audio Signals
46 AUDIO GND GND for Audio Signals
13 GND Digital GND
47 GND Digital GND
14 IO BRD ID0 Reserved for special applications
48 IO BRD ID1 Reserved for special applications
15 DSP GPIO1 Reserved for special applications
49 DSP GPIO0 Reserved for special applications
16 DSP GPIO2 Reserved for special applications
50 DSP GPIO3 Reserved for special applications
17 GND Digital GND
51 GND Digital GND
18 RS422-A P Port A – For KLV Meta data and other serial data
52 RS422-A N Port A – For KLV Meta data and other serial data
19 RS422-B P Port B – For KLV Meta data and other serial data
53 RS422-B N Port B – For KLV Meta data and other serial data
20 RS422-C P Port C – For KLV Meta data and other serial data