Grass Valley NV9649 v.1.1 - Manual (Page 143)

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NV9649
User’s Guide
Configuring Inputs
Clicking an input button (one of 8) displays the GPI input dialog:
An event is signalled when a transition occurs on the input from on to off or from off to on. You
can configure the NV9649 to recognize either occurrence on any of the 8 inputs, and specify one
of 4 behaviors for each event or both:
1 Execute a salvo.
If you choose this behavior, select a salvo ID in the salvo drop-down list.
Note: Although it is not evident in the GPIO input dialog (or anywhere else), a ‘Previous
Source’ command in a salvo chooses the most recent source that is different from the current
source (for a designated destination).
2 Route the “previous source” (that was switched by any control panel) to a destination, even
if it is the same as the current source.
If you choose this behavior, select a destination in the destination drop-down list.
3 Route the “previous source” switched by this panel to a destination, even if it is the same as
the current source.
If you choose this behavior, select a destination in the destination drop-down list.
4 Route a source to a destination.
If you choose this behavior, select a source and a destination in the two drop-down lists.
GPIO Summary
The NV9649 has 4 relays that can switch on or off your external devices, based on (1) NV9649
input transitions and (2) events in the router control system.
Its 8 inputs can be switched on or off by your external devices. When an input transitions on or
off, the NV9649 can respond with one of 4 actions, such as executing a salvo. (It is the system
that actually executes the salvo.)