Grass Valley Maestro Master Control v.2.4.0 - Manual (Page 437)

433 MAESTRO User Manual
Appendix C — Insertion of Keys and Audio Overs via GPI
Trigger Duration
This column is not used when “MaestroGPI” is the device type.
Trigger Sense
Select High for the Keyer (video) trigger port and for the Audio Over (mix)
trigger port.
Sub System
“EAS” is selected automatically.
Purpose
This column refers to the specific keyer and mixer that will be switched to
Program when triggered by the EAS receiver. Selections are:
• Keyer 1 - 8. Keyers 1-4 are upstream keyers. Keyers 5-8 are downstream
keyers. Typically, a downstream keyer would be used so that the back-
ground video does not change during the EAS message.
• Audio Over 1 - 4. Audio Over 1 and 2 correspond to Mix 1 and Mix 2
on the control panel. Audio Over 3 and 4 (Mix 3 and 4) are only avail-
able when a Sonata AES-to-MADI converter is installed.
In the example shown, when the trigger level is received, Maestro will
switch Keyer 8 and Audio Over 2 (Mix 2) to Program.
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.