EdgeVision
User Guide
27
Alarm acknowledgment can provide visual feedback to operators at different locations. An
alarm acknowledgment by one operator will be seen by all operators and is usually an
indication that somebody is attempting to resolve the cause of an alarm.
To acknowledge an alarm
• On the left pane, in the
System
folder, right-click the alarm you wish to reset and select
Acknowledge
.
Once you acknowledge an alarm, the command will be dimmed for that alarm and you will
not be able to reset it until the next event.
A Simple Acknowledgement Scenario
The following is an example of a simple alarm acknowledgment scenario:
1.
An alarm has an initial status of normal (green).
2.
A critical error occurs, causing the alarm’s current, latched and acknowledgment states to
change from green to red.
3.
After a few seconds, an operator acknowledges the alarm, which changes the
acknowledgment state back to green. Other operators can see that the error is still present,
but that someone is working on it.
A Recurring Acknowledgement Scenario
The following is an example of a recurring alarm acknowledgment scenario:
1.
As in the previous scenario, the alarm is acknowledged and the acknowledgment state
reverts to green.
2.
If the problem is not fixed before the acknowledgment period expires, the
acknowledgment state reverts to red, which triggers a second alarm (that is logged) with a
note indicating the issue has now escalated once.
3.
A scripted action might, at this point, send an SMS message to a supervisor.
Alarms in EdgeVision Player
The mere existence of an alarm does not necessarily mean that something is wrong.
As discussed in
"About Reading Alarms", on page 23
, alarms − especially text alarms − may
exist simply as vehicles for transmitting monitoring-and-control statistics to an operator. For
example, if you enable the
Test pattern generator status
alarm for a feed, but only plan to
have a video pattern on a feed for four hours per day, the alarm can help you confirm that the
video pattern is displaying at the correct time of day.
