Alarm types, Virtual alarms, Overall alarms – Grass Valley iControl V.6.02 User Manual
Page 308: Sub-alarms, Grass valley device alarms
Alarms in iControl
Alarm Types
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Resetting alarm latches of all alarms in an alarm folder
Alarm Types
There are a number of different types of iControl alarms, described briefly below and in
greater detail later in this chapter. The diagrams on the following pages show how the various
alarm types appear in iControl.
Virtual Alarms
A virtual alarm is a special type of alarm that allows you to derive a new result from the
status(es) of one or more existing alarms.
Overall Alarms
An overall alarm is a type of virtual alarm that indicates the overall condition of a device or
service based on the combined statuses of the constituent alarms for that device or service.
Overall alarms are often generated automatically.
Sub-alarms
A sub-alarm is an alarm that contributes to the status of a higher level virtual alarm. Sub-
alarms can be grouped together, and the group itself can become a sub-alarm of a higher-
level alarm. Each sub-alarm may or may not have the same status as its higher-level alarm. The
effect of a sub-alarm’s contribution is determined by the way in which the higher-level alarm is
configured. A sub-alarm’s contribution to a higher-level alarm can, in some cases, be modified.
Grass Valley Device Alarms
All Grass Valley devices in an iControl system automatically generate an overall alarm status
that can be viewed in iC Navigator (the icon beside the device name), in the GSM Alarm
Browser (the Overall sub-alarm inside the folder associated with the device), and on Web
pages—any Web page component that is associated with the device, such as a button or a
See also
For more information, see:
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"Latches, Acknowledgment and Virtual Alarms"
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