Grass Valley iControl V.4.43 - Manual (Page 356)

Alarms in iControl
Alarm Components
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The following table provides a brief description of some of the alarm categories available
within iControl:
Alarm Components
In addition to knowing the status of an alarm, it is often useful to know the history of the
alarm, and whether or not someone has taken any action in response to it. iControl represents
these changes in alarm status over time using three components: current, latched, and
acknowledgment.
Current
This is the component of an alarm corresponding to its current status. If a freeze alarm is red, it
means the video is currently frozen. As soon as it starts again, the alarm is cleared and
becomes green.
Latched
This is the component of an alarm corresponding to the worst status that the alarm has
recently exhibited. For example, a transient fluctuation in a video signal may cause an alarm
configured to detect a video signal freeze to turn red for a moment, and then return to green.
iControl keeps track of the fluctuation by setting the latched component of the alarm to red,
giving the operator a visual cue that this alarm may need to be watched more closely. A latch
can be reset by an operator, causing iControl to set the latch status to green and then begin
tracking status changes all over again.
The latched component of an alarm can be configured to track the alarm on either the server
side (in which case the latch can be reset by any operator from any client workstation), or on
the client side (in which case the client workstation “remembers” the latch status from a
previous session, regardless of what has happened on the server in the interim).
Latches can be reset by an operator when an alarm’s current status is green. Resetting a server-
side latch for an overall (virtual) alarm simultaneously resets the latches on all associated sub-
Alarm Category Created by Description
Health Monitor System Alarms of this type indicate the health of system devices, such as a Densité frame, a
Symphonie frame, or an Application Server. A folder named “Health Monitor”
automatically appears in the Alarm Browser window.
iControl System Alarms of this type indicate whether cards and devices on the network being monitored
are available to the iControl system. A folder named “iControl” automatically appears in
the Alarm Browser window.
iControl Web User Alarms of this type indicate whether the services required by iControl Web are available.
A folder named “iControl Web” automatically appears in the Alarm Browser window.
When an iC Creator page is saved, it appears in the list of alarms in this folder.
Router User Alarms of this type indicate the operational status of routers
Third Party
Devices User Alarms of this type indicate the operational status of third party devices
Virtual User Alarms of this type are a combination of one or more sub-alarms.