Grass Valley Maestro Master Control v.1.7 - Manual (Page 165)

Maestro Channel Branding User Guide 161
5th Step: Input/Output Sets
Trigger Type
Trigger Type can be “Level” or “Pulse.” If Pulse is selected, the input pulse
duration must be one field or more.
Trigger Duration
This column is not used in this application.
Trigger Sense
Select “High” if the external device is normally low and will send between
3 and 10 V to assert “Transition.” Select “Low” if the external device is nor-
mally high and will present zero V to assert “Transition.”
When finished configuring the table, select “ Apply ” or “ OK .” The Name of
the GPIO Definition set will now appear in the set panel. The set is assigned
to the appropriate Maestro channel (Processor) using the Channel Setup
table.
Maestro Control of External Device (Action: Transition in Progress)
In this application, Maestro can send a Transition in Progress signal to an
external device. See
Figure 124 .
Note Prior to v1.5.2, the GPO was asserted when a source began to transition. In
v1.5.2 and later the GPO is asserted as soon as the transition is triggered
whether the source begins to transition immediately or is delayed.
Figure 124. GPIO Definition table for “Transition” Trigger to Maestro
Device Type
For this application, select “MaestroGPO.”
Identifier
The numbers in this column refer to the 16 ports on the GPIO connector.
Any port from 1 to 16 can be selected in any order.