Grass Valley Maestro Master Control v.2.4.0 - Manual (Page 258)

MAESTRO User Manual 254
Emergency Alert System Switching
When the message is complete, the receiver will remove the trigger and
then Maestro will switch the EAS key and mix sources.
WARNING Proper keyer and mixer operation requires the appropriate settings (e.g.
clip, gain, self key, and mix-over ratio) to be in place when the EAS
message is being transmitted. The EAS system should be tested and oper-
ating procedures established to ensure reliable operation during an emer-
gency transmission.
For more information, refer to Insertion of Keys and Audio Overs via GPI on
page 430.