The system has detected an incoming loss-of-pointer (LOP) condition. A valid pointer could not be found for eight consecutive frames in the identified incoming EC-1 signal.
|
Alarm Data |
Value/Meaning |
|---|---|
|
Severity Levels |
Critical (CR), Major (MJ), Minor (MN), Not Alarmed (NA), Not Reported (NR) SA Default: Critical (CR) NSA Default: Minor (MN) |
|
ASAP Type |
STS Ring Channel |
|
AID Type |
STS Ring Channel within an EC-1 |
|
Date |
Month/day/year that the condition was detected |
|
Time |
Hour:minute:second that the condition was detected |
|
Probable Cause |
LOP (Loss of pointer) |
|
Effect on Service |
SA or NSA |
|
Alarm Entity Type |
STS1 |
|
Description |
inc. STS LOP |
|
Likely Cause |
A circuit pack failed at the near-end or far-end of the line. If the condition affects the same pointer in both lines of an interface, the cause could be unprotected failure of an STS cross-connected circuit pack (EC-1) in the adjacent upstream network element or a cross-connection mismatch between STS-1s. An unprotected circuit pack carrying service failed - SA. A protected circuit pack failed - NSA. |
|
Visible Indication |
Lighted CR, MJ, or MN LED on the SYSCTL faceplate (when the severity level is provisioned to Critical, Major, or Minor, respectively) and a flashing Fault LED on the alarmed circuit pack. |
|
Action |
Proceed to Procedure 5-57: Clear "inc. EC1" alarms. |
| November 2011 | Copyright © 2011 Alcatel-Lucent. All rights reserved. |