Protection switching is inhibited; the active and protection states of a 1+1 protected equipment pair cannot be changed. This alarm also indicates that automatic synchronization reference switching is inhibited.
|
Alarm Data |
Value/Meaning |
|---|---|
|
Severity Levels |
Slot: Not Alarmed (NA) Synch reference (external): Critical (CR), Major (MJ), Minor (MN), Not Alarmed (NA), Not Reported (NR) Default: Minor (MN) |
|
ASAP Type |
Synch reference (external): System Timing |
|
AID Type |
Slot Synch reference (external) |
|
Date |
Month/day/year that the condition was detected |
|
Time |
Hour:minute:second that the condition was detected |
|
Probable Cause |
Slot: INHSWPR (Inhibited switch to protection) WKSWPR-1 (Working facility/equipment switched to protection unit 1) WKSWPR-2 (Working facility/equipment switched to protection unit 2) Synch reference (external): INHSWPR (Inhibited switch to protection) |
|
Effect on Service |
Slot: Standing Condition (SC) Synch reference (external): NSA |
|
Alarm Entity Type |
Slot: EQPT Synch reference (external): T1, E1 |
|
Description |
inhibit switch |
|
Likely Cause |
User selected Fault → Protection Switch and highlighted a 1+1 Equip Protection Group and provisioned the Switch Type as Inhibit. User selected Fault → Timing/Sync Protection Switch → System Timing Reference/Source Switch and the Switch Command Inhibit. |
|
Visible Indication |
Slot: Lighted ABN LED on the SYSCTL faceplate. Synch reference (external): Lighted CR, MJ, or MN LED on the SYSCTL faceplate (when the severity level is provisioned to Critical, Major, or Minor, respectively) |
|
Action |
Proceed to Procedure 5-87: Clear "inhibit switch" condition. |
| November 2011 | Copyright © 2011 Alcatel-Lucent. All rights reserved. |