Alcatel-Lucent 9500 MXC User Manual page 771

Additional Information
NPC TDM Clock Failure
Probable Cause
Recommended Actions
Additional Information
TDM Clock Locked to NPC
Probable Cause
Recommended Actions
DAC ES Alarms
Switch Access Failure
3DB 23063 ADAA - Rev 004 July 2007
• If the supply voltage is correct, suspect the voltage sensor circuit in the
NPC. Replace the NPC.
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.
The NPC TDM clock has failed.
Equipment malfunction.
Reboot the NPC by withdrawing it from its backplane, pausing, and re-inserting.
If the alarm remains, replace the NPC.
Providing the NCC is maintaining the clock, replacing the NPC will not affect
traffic.
TDM clock is locked to the NPC. This is a warning alarm.
TDM bus clock has been locked to the NPC using the lock command in CT
System Controls.
To remove the alarm, remove the lock.
No communications with Ethernet switch. This is a critical alarm.
9500 MXC User Manual
Vol. VI-B-45