Alarm suppression – Grass Valley iControl V.6.02 User Manual
Page 344
Alarms in iControl
Alarm Suppression
334
Alarm Suppression
iControl can be configured to automatically suppress the generation of certain signal alarms
for specific periods of time, and then to automatically revert back to its normal alarm-
generation behavior to match the expected behavior of particular channels.
For example, if channel 1409 is known to sign off at 2:00 a.m. and to resume normal
programming at 6:00 a.m., operators may find that iControl distracts their attention by
reporting alarms due to the presence of the color bars and audio tone that are broadcast
during the night.
With an iControl system not configured for alarm scheduling, the color bars and audio tone
would continuously generate alarm states on channel 1409, which would keep being
reported as invalid signals in the iC Web user interface. Notice the red status icons and red
UMD in the image below.
As shown below, once alarm scheduling is configured in iControl, the generation of video
freeze alarms for channel 1409 will be suppressed every day from 2:00 a.m. to 6.00 a.m., while
the other signal parameters, such as video presence and video black, are still verified. During
the alarm suppression period, the overall status of the signal remains valid, and none of the
video freeze status icons for channel 1409 turns red.
• Manual alarm inversions, see
• Scheduling inversion actions, see
"Setting a Schedule for an Alarm Inversion"
See also
(Continued)
For more information about:
Red “video
freeze” alarm
Red UMD
alarm