ADTRAN 25 manual Error LOG

MAINTENANCE

ERROR LOG

When a system maintenance object fails periodic testing, the system automatically generates an error record. Depending on severity, the record is stored in one of three tables in the Error Log. The Error Log contains the following three error tables:

●P e r m a n e n t S y s t e m A l a r m s : These are failures that cause degradation of service and require immediate attention. These alarms will light the Alarm LED on the Attendant Console and are stored in the Error Log Permanent System Alarm table. This type of alarm also lights a red LED on an ‘associated CP. A red lighted LED is a visual signal that service is required.

●Transient System Errors: These are potential failures that may cause degradation of service, although they do not light the Alarm LED on the Attendant Console. Transient System Errors have not yet been verified by system self-tests, and/or have not reached the level of a Permanent System Alarm.

If a transient system error is verified or reaches a certain level of severity, it is reclassified as a Permanent System Alarm, and the Alarm LED on the Attendant Console lights. Transient system errors are stored in the Transient System Error table. The system stores up to 40 Permanent System Alarms and Transient System Errors in their respective tables in the Error Log.

●Most Recent System Errors: These are the ten most recent errors recorded by the system, regardless of their severity. They do not light the Alarm LED on the Attendant Console unless they escalate to a Permanent System Alarm.

The Error Log is accessible through the SAT. Each error record is reported as one line on the SAT (80 characters or fewer). Permanent System Alarms and Transient System Errors tables use the same format. These error records provide the location of the error (by port and CP type), the date and time of the first occurrence and last occurrence of the error, the number of times the error has occurred, and a description of the error.

4-27