Carrier Access Access Navigator user manual Critical Alarm Status LEDs, Major Alarm Status LEDs

Alarm Clearing

Critical Alarm Status LEDs

Critical Alarm Status LEDs

A critical alarm means that a fault exists that affects more than 128 call lines. A critical alarm requires an immediate maintenance response. No critical alarms are currently defined for the Access Navigator.

Table 14-11. Critical Alarm Status LEDs

LED State	Description	Troubleshooting
Off	No critical alarms present.	Alarms appear only on the active
		Controller.
Red	Critical alarm exists.	Use the states of the Active/Standby
		status LEDs and DS1 status LEDs to help
		locate the source of the fault.

Major Alarm Status LEDs

A major alarm means that a fault exists that affects 24 or more call lines. A major alarm requires a prompt maintenance response. Major faults include:

￿￿DS1 loss of signal (LOS) ￿￿DS1 loss of frame (LOF)

￿￿DS1 interface receives alarm indication signal (AIS)

￿￿DS1 interface receives remote alarm indication (RAI, yellow alarm) ￿￿DS1 Quad Framer card failed or was removed

Table 14-12. Major Alarm Status LEDs

LED State	Description	Troubleshooting
Off	No major alarms present	Alarms appear only on the active
		Controller.
Red	Major alarm exists	Use the state of the Power LEDs, Active/
		Standby status LEDs, and DS1 status
		LEDs to help locate the source of the
		fault.

14-18 August 2003 Access Navigator - Release 1.8