Grass Valley iControl V.6.02 - Manual (Page 313)

iControl
User Guide
303
Alarm Acknowledgment Behavior in Channel Selectors
A channel selector is a Web page element consisting of a group of buttons used to select
individual channels. When one channel in a group has an alarm status that is not normal, the
group background turns red, and the affected individual channel button flashes red until the
alarm is acknowledged. If the affected individual channel clears before being acknowledged,
the group background changes to a color that represents normal status, and the individual
channel button flashes green.
Alarm Acknowledgment Scenarios
Here 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.
4. If the problem is fixed before the acknowledgment period expires, the alarm’s current state
reverts to green (the acknowledgment state remains green).
5. If the problem is not fixed before the acknowledgment period expires, the acknowledgment
state reverts to red.
Here 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 gets logged) with a note that the
issue has now escalated once.
3. A scripted action might, at this point, send an SMS message to a supervisor.
Alarm Component Appearance
For any given alarm, it is possible to have an on-screen representation of the components as
separate icons/buttons, or in one combined icon.
Note: Alarm acknowledgment is only visible in the GSM Alarm Browser when Show
status details is selected (see
"Displaying Alarm Status Details" , on page 355).