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Chapter 5 provides information about the tally (GPIO) interface.
Summary
GPIO Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
The Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
GPIO Summary
The NV9680 has 4 relays that can switch on or off your external devices, based on (1)
NV9680 input transitions and (2) events configured in the GV-Orbit or GV Convergent. Its 8
inputs can be switched on or off by your external devices. When an input transitions on or
off, the NV9680 can respond with one of 4 actions, such as executing a salvo. It is GV-Orbit
that actually executes the salvo. See GPIO Configurator Tasks in the GV Orbit Control User
or GV Convergent User's Manual . See
Guide
The Interface
The tally interface includes 8 optically isolated inputs and 4 solid-state relay outputs (also
optically isolated). Tally devices you connect to inputs can trigger events — through the
NV9680 — in GV-Orbit. The router control system can trigger events that — through the
relays in the NV9680 — switch your tally devices.
The DB25 connector, labeled "GPI Interface" at the rear of the NV9680 presents the tally
signals. There are 8 input signals and 4 pairs of output signals.
1 0
3 2 5 4
Fig. 5-1: GPI Interface
13
25
7 6
1 0
3 2
5 4
Inputs
Related
Documentation, on page 2.
Ground
1
14
– +
+ –
– +
+ –
7 6
0
1
2
3
Outputs
5
GPIO
14
– +
+ –
– +
+ –
6
0
1
2
3
17
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