Alcatel-Lucent 9500 MXC, User Manual, Page: 771 / 916

9500 MXC User Manual
3DB 23063 ADAA - Rev 004 July 2007 Vol. VI-B-45
• If the supply voltage is correct, suspect the voltage sensor circuit in the
NPC. Replace the NPC.
Additional Information
A node will operate to specification with a supply voltage between -40.5 and -60
Vdc.
Providing the NCC is maintaining power supply to the node, an NPC may be
replaced without affecting traffic.
NPC TDM Clock Failure
The NPC TDM clock has failed.
Probable Cause
Equipment malfunction.
Recommended Actions
Reboot the NPC by withdrawing it from its backplane, pausing, and re-inserting.
If the alarm remains, replace the NPC.
Additional Information
Providing the NCC is maintaining the clock, replacing the NPC will not affect
traffic.
TDM Clock Locked to NPC
TDM clock is locked to the NPC. This is a warning alarm.
Probable Cause
TDM bus clock has been locked to the NPC using the lock command in CT
System Controls.
Recommended Actions
To remove the alarm, remove the lock.
DAC ES Alarms
Switch Access Failure
No communications with Ethernet switch. This is a critical alarm.