Grass Valley Maestro Master Control v.1.7 - Manual (Page 167)

Maestro Channel Branding User Guide 163
5th Step: Input/Output Sets
Figure 125. GPIO Definition Table for Source Tally Mode
Device Type
Select “MaestroGPO.”
Identifier
The numbers in this column refer to the 16 GPIO ports on the connector.
Any port from 1 to 16 can be selected in any order.
Trigger Type
Selections are Pulse or Level. When the defined source goes on-air, a
“Level” selection will cause the GPIO contact to go to and remain at the
state selected in the Trigger Sense column (described below).
Trigger Duration
This column applies only when “Pulse” has been selected as the Trigger
Type.