Grass Valley Turbo iDDR v.2.3 - Manual (Page 45)

Turbo iDDR User Guide 45
Setting GPI output triggers
Setting GPI output triggers
To access GPI input settings:
• On the front panel, press MENU , then choose Tools using the control knob, and
select GPI Output Triggers .
- or -
• In the Workstation AppCenter, select System | Configuration , click GPI , then click
the GPI-Output tab.
Adjusting video output timing
When integrating the iDDR into a video system, you may be required to use a video
reference signal to synchronize the iDDR and other video sources. This ensures a
stable picture on the display device when switching between other video sources.
Topics here include:
• “Using the video reference input” on page 45
• “Video timing principles” on page 47
• “To adjust video output timing” on page 47
Using the video reference input
The video reference signal is used to synchronize equipment in a video system so that
video output signals can be combined and switched with other signal sources
smoothly. Without synchronization, switching between signal sources will produce
picture jumps and rolls while the display device re-synchronizes.
On the GPI Output
Triggers menu,
select...
And make settings as needed…
Channel None No GPI output triggers are set.
R1 Channel R1 triggers the GPI output.
P1 Channel P1 triggers the GPI output.
P2 Channel P2 triggers the GPI output.
Name GPI-Out-X Enter the name of the action triggered by the GPI
output.
Active HIgh
Low
Select the active signal (high or low) required. This is
determined by the external equipment connected to the
GPI output.