7700 Multiframe Manual
7725DSK-LG / 7725DSK-LG-HD HD/SD Logo Inserter & Media Keyer
VLPRO OPERATION Revision 1.4 Page 3-17
3.8.1. Configuring the GPO Outputs
The 7725DSK-LG is fitted with four contact closure general-purpose outputs (GPOs) that can be used
as tallies for various functions. There are individual menu items to configure each of the GPOs. For
simplicity, only the menu for GPO A will be discussed.
The GPO VALUE is used to select the function of the GPO A general-purpose output. The output will
be low when it is active.
None: Select none to disable the output.
Bypass: Select Bypass to indicate the unit is running bypass mode.
Trans: Select Trans. to indicate the transitions.
Vid A- C Val: Select Vid A- C Val to indicate that the signal is present.
Vid A - C Inv: Select Vid A - C Inv to indicate that the signal is not present.
Voice Over: Select Voice Over to activate the output when the voiceover on the program
output bus is active.
Logo+Media: Select Logo+Media to make the GPO low when the media layer is turned on
and a logo is being keyed on the Program bus.
Media Status: Select Media Status to make the GPO low when the media layer is turned on
for the Program bus.
Logo Status: Select Logo Status to activate the output when the media key layer on the
program output bus is active.
DSK Status: Select DSK Status to activate the output when the DSK layer on the program
output bus is active.
Prog BLK: Select Prog BLK to activate the output when the program output bus input is the
internal black generator.
Prog B: Select Prog B to activate the output when the program output bus input is PGM
IN B.
Prog A: Select Prog A to activate the output when the program output bus input is PGM
IN A.