Grass Valley iControl V.6.02 - Manual (Page 306)

Alarms in iControl
Alarm States
296
Alarm States
The current state of each alarm is shown as an icon next to the alarm name. Each possible
alarm state is represented by a color where the states are dynamically updated.
The statuses in iC Navigator are not handled by the GSM. (These are the JINI statuses.) These
are not the same as GSM statuses. For example, iC Navigator can run without a GSM and can
provide statuses but not the same type when a GSM is running.
All iControl alarm notifications are managed through a central system called the General
Status Manager (GSM). For purposes of load sharing on the client side, alarm notifications
from multiple distributed GSMs may be managed by the multi GSM Manager which computes
the virtual alarm, gets its status and dispatches the alarm status to the client
For example, a Grass Valley FRS-111i frame synchronizer reports on six operating conditions
(e.g. Video input presence), and generates a seventh overall status alarm based on the state of
the other six alarms.
When the system starts for the first time the GSM appears on the network while the device is
already running, the device is expected to add its alarms to the GSM and to send their status.
In that case, both the previous state and next state of the alarm should be initialized to the
current state of the alarm.
The following list indicates the color scheme and hierarchy of alarm statuses. The alarm states
are positioned from greater value (top of list) to lesser value (bottom of list).
Note: Some applications may represent alarm states differently or use
different color schemes.
Color scheme and hierarchy of alarm statuses
Color Meaning
White No ID assigned to the link - first status on the page before changing to another color
Waiting for the GSM to reply such as a slow VPN connection (a new client service)
Green Normal - an operation status driven by the service
Yellow Warning - an operation status driven by the service - usually not used
Red Error
Gray Unknown - lost connection.
The default status for a new alarm that has been added to GSM before its state is known is gray. Therefore if the
initial state of the alarm is also gray, there is no need to update the GSM status (but doing it anyway won't have
any adverse effect either).
Blue Non existent: this is a pseudo-status representing an alarm that has been removed (or was never added). You
should never see it in the GSM tree, but you'll see it in client applications that listen to specific alarms and the
log viewer.
When the device starts up and sends its initial state, the previous state box should be initialized to blue.
Black Disabled at the source.
Some devices have the ability to deactivate some alarms on the hardware itself; these alarms will show up as
black when they are deactivated in this manner.