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An alarm is an important sign for a fault or an event. Alarms help detect faults in a timely manner, and provide suggestions for troubleshooting.
The priority for rectifying faults depends on the alarm severity.
ϒ⁄Critical: global alarms that seriously affect device operations. For example, a power supply fault, critical alarms must be handled immediately; otherwise, the system may crash.
ϒ⁄Major: board or physical circuit alarms that occur in a certain scope. For example, the fault of the physical circuit, major alarms must be handled immediately; otherwise, the services cannot run normally.
ϒ⁄Minor: general faults or event alarms that describe the working status of each board or physical circuit. You must locate the cause to remove potential problems.
ϒ⁄Warning: prompt message. For example, a message indicating that a device has been restored, warning alarms do not affect system performance and services. No action is required.
If the LMT is used, the alarm severity is displayed in the alarm window.
The procedure for handling an alarm is as follows:
1.Find the critical and major alarms among all alarms.
2.View the cause of each alarm and handle the alarm.
3.Verify that the alarm is cleared.
ϒ⁄If the alarm is cleared, the fault is rectified.
ϒ⁄If the fault is not rectified, find out other possible causes.
To view alarms, use the observe the indicators.
ϒ⁄Observe the unified gateway indicators to obtain alarm information. Table 1 describe the indicators.
Table 1 Alarm indicators
Indicator |
Color |
Status Description |
ALARM |
Red |
For SCU/CVP boards: ϒ⁄Blinking: An alarm is being reported while the system is running. ϒ⁄Off: No alarm is being reported. For other boards: ϒ⁄Blinking: The board is starting, or the user does not add the board by using a command after the unified gateway has started. ϒ⁄Off: The board is running normally. |
Parent Topic: Common Methods for Locating Faults