To Set Up a GPI Output
A GPI output can be set as a Normal GPI output, or as
a Tally output. As a tally output, the GPI output must be
assigned to a video source. A GPI output in tally mode
can still be used as a normal GPI output.
1.
Press MENU > CONFIG > GPIO.
2.
Use the Pin knob to select the GPI pin that you
want to congure as an output.
3.
Use the Type (or I/O) knob to select the type of
trigger signal you want to use for the GPI output.
•
LowE – low edge trigger
•
HighE – high edge trigger
•
LowL – low level trigger
•
HighL – high level trigger
4.
For edge triggers, use the Dur knob to set the
length of time (in frames) that the GPI edge
output remains triggered.
5.
For level triggers, use the Mode knob to set how
you want to GPI output to act.
•
Normal — when assigned to a video source
and RollClip is active, will trigger with the
source going on-air, and back with the source
going off-air (pre-delay values are only used
when the source is going on-air)
•
Tally — when assigned to a video source,
will trigger with the source going on-air, and
back with the source going off-air (RollClip
and pre-delay values are ignored)
GPI Output Triggers
Each video source can have a GPI output assigned to it.
This GPI can be used to trigger an external device, such
as a video server, to play the cued clip when the video
sources from the video server are taken on-air. This
trigger can be set up to occur automatically any time the
video source is transitioned on-air, or it can be triggered
manually.
An automatic GPI output trigger can be overridden if
required.
Note: The Next Button Secondary Function must be set to
GPO to be able to trigger a GPI output manually using the NEXT
button.
Keep the following in mind when working with GPI
output triggers:
•
The RlClip knob must be set to On to trigger a
GPI output with a transition.
• Edge triggered GPI outputs remain triggered for
the congured duration.
• Level triggered GPI outputs toggle between high
and low each time they are triggered.
To Assign a GPI Output to a Video Source
You can set a pre-delay, or pre-roll, that will specify
when the GPI is triggered in relation to taking the video
source on-air. This is useful for VTR pre-roll delay and
other situations where an input source is not immediately
ready to be taken to air. The RlClip knob must be set to
On to trigger the GPI output with the transition.
Note: You cannot assign a GPI output to Aux bus special
sources (AUX PGM, AUX PV, AUX CLN).
1.
Press MENU > CONFIG > Input > NEXT >
NEXT.
2.
Use the Input knob to select the video source
that you want to assign a GPI output to.
When you select this source on a bus, the GPI
output will trigger automatically.
3.
Use the GPO knob to select the GPI output that
you want to assign to the selected video source.
4.
Use the Predly knob to select the pre-delay
interval (in frames) that the switcher waits after
the GPI output is triggered before taking the
input source on-air.
To Set a GPI to Be Triggered Manually
To manually trigger a GPI output, the GPI must be
assigned to one of the pattern/mnemonic buttons.
1.
Press MENU > CONFIG > GPIO > NEXT.
2.
Use the Bttn knob to select the
pattern/mnemonic button that you want to assign
a GPI output to.
3.
Use the GPO knob to select the GPI output that
you want to assign to the button.
Carbonite Setup Manual (v10.0) — GPI Control • 43