GRASS VALLEY GV K-FRAME XP, Installation Planning Manual

Page: 66 / 87

System Cabling
66
Relay Tally/GPI Outputs
extend across multiple connectors. For example, a situation may require two isolated
common buses, half of the commons form the first common bus and the other half form
the second common bus.
The first four outputs have the common bus tied to +12 Volts. This drives the relay tally
lamp system. The last outputs have the common bus tied to ground; this drives a logic
system. All relays can be used to drive logic or control external circuitry.
37-pin Connector
Pin Numbers
GPIOut1A
GPIOut2A
GPIOut3A
GPIOut4A
Tally1B
Tally2B
Tally3B
Tally4B
5
24
6
25
4
Common A
8
27
9
28
Common B
7
or 23
or 26
+ 12V DC
12V Lamp
12V Lamp
Logic
Tally13E
Tally14E
Tally15E
Tally16E
Common E
17
36
18
37
16
or
35
Logic
Video Processor Frame User Equipment
Relay Tally and GPI Output Connection Example