MediaMatrix CAB 4n Hardware Manual page 38

Appendix A - Reference Information
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GPIO connector pin-out table
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
State 1 indicates continuity with pin 25.
34
Function
Configurable GPIO
Configurable GPIO
Configurable GPIO
Configurable GPIO
Ground
Relay 1 Common
Relay 1 N.C.
Relay 1 N.O.
Relay 2 Common
Relay 2 N.C.
Relay 2 N.O.
Fault Relay N.C. (1=Power off)
Fault Relay N.O. (1=Power on)
Version 1.6.4b.1
Pin Function
14 Configurable GPIO
15 Configurable GPIO
16 Configurable GPIO
17 Configurable GPIO
18 Ground
19 Relay 3 Common
20 Relay 3 N.C.
21 Relay 3 N.O.
22 Relay 4 Common
23 Relay 4 N.C.
24 Relay 4 N.O.
25 Fault Relay Common
June 11, 2012