Grass Valley K2 AppCenter v.9.0 - Manual (Page 180)

Using GPI input and output triggers
The K2 Summit/Solo system provides 12 GPI inputs and 12 GPI outputs on a single DB-25 pin rear
panel connector. GPI input triggers can be used to control channels, including recording, playing,
stopping, and skipping a playlist event. GPI output triggers can be defined for channels and inserted
in playlists to control external equipment as the list is played.
If you want to trigger record via GPI input on four channels simultaneously, make sure all the
channels have new clips waiting for the GPI input, in the cue record state.
For information about GPI connectors, see topics in "K2 System Guide".
Configuring GPI triggers
Use the configuration tool provided in the AppCenter file menu. Select System | Configuration to
define the GPI input or output triggers for a channel.
The following features are part of the licensable AppCenter Pro option.
The Control drop-down list has three selections: Application, Position Trigger, and Channel State.
• Application — allows you to select the GPI trigger on the level of the Playlist application. Must
be used in conjunction with a specified channel. For example, if after having selected a channel
in the Configuration Manager, you then select Application, you can open up the Playlist Properties
dialog box and assign a GPI output event to each clip or event in a Playlist.
• Position Trigger — indicates the position when the GPI output is triggered, e.g. at the beginning
or the end of a clip.
• Channel State — indicates the status of the channel when the GPI output is triggered, for example
when recording or when idle. Used in conjunction with a trigger state. For example, in a Playlist
application, you can set the trigger so that the GPI output is triggered when clip is first loaded
but not when it's playing or when it’s re-cued to beginning.
GPI triggers
To access GPI settings, select System | Configuration and click on the GPI tab. The settings are
located under two tabs: GPI-Input and GPI-Output. GPI output triggers have user-assignable names.
The following tables describe the GPI functions under each tab.
GPI Input
Make settings as needed… On the GPI tab,
select
GPI-Input…
Select the channel to trigger the GPI
input. C1, C2, C3, C4 Trigger
channel(s) GPI Input 1. . .
GPI Input 12
180 K2 AppCenter User Manual 29 October 2012
GPI and other configurations