Att System 25 Manuel d'utilisateur télécharger pdf (Page 203)

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:

● Permanent System Alarms:

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.

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Att System 25 Manuel d'utilisateur Page 203