2-177
Cisco ONS 15454 Troubleshooting Guide, R8.5
November 2009
Chapter 2 Alarm Troubleshooting
2.7.259 LPBKTERMINAL (OCN)
2.7.259 LPBKTERMINAL (OCN)
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
SONET Logical Object: OCN
A Loopback Terminal condition for an OC-N port occurs when a software terminal (inward) loopback
is active for a port on the reporting card.
Note OC-N terminal loopbacks do not typically return an AIS.
Note Performing a loopback on an in-service circuit is Service-Affecting (SA). If you did not perform a
lockout or Force switch to protect traffic, the LPBKTERMINAL condition can also be accompanied by
a more serious alarm such as LOS.
For information about troubleshooting circuits, refer to the loopback procedures in Chapter 1, “General
Troubleshooting.”
Clear the LPBKTERMINAL (OCN) Condition
Step 1 Complete the “Clear an OC-N Card Facility or Terminal Loopback Circuit” procedure on page 2-276.
Step 2 If the condition does not clear, log into the Technical Support Website at
http://www.cisco.com/techsupport for more information or call Cisco TAC 1 800 553-2447.
2.7.260 LPBKTERMINAL (TRUNK)
For information about this alarm or condition, refer to the “Alarm Troubleshooting” chapter in the
Cisco ONS 15454 DWDM Troubleshooting Guide. This guide discusses all DWDM alarms.
2.7.261 LWBATVG
Default Severity: Major (MJ), Service-Affecting (SA)
SONET Logical Object: PWR
The Low Voltage Battery alarm occurs in a –48 VDC environment when a battery lead input voltage falls
below the low power threshold. This threshold, with a default value of –44 VDC, is user-provisionable.
The alarm remains raised until the voltage remains above the threshold for 120 seconds. (For
information about changing this threshold, refer to the “Turn Up Node” chapter in the Cisco ONS 15454
Procedure Guide.
Clear the LWBATVG Alarm
Step 1 The problem is external to the ONS 15454. Troubleshoot the power source supplying the battery leads.
To Next Page
Loading...
