Minor Alarm Inquiry Test (#143) - Avaya S8700 Maintenance Manual

UDS1-BD (UDS1 Interface Circuit Pack)

Minor Alarm Inquiry Test (#143)

The Minor alarm raised by a UDS1 Interface circuit pack indicates that the
average bit error rate on the DS1 facility is greater than 1/1,000,000, but less than
1/1000. The Minor Alarm Inquiry test is used to determine that the received DS1
bit error rate is greater than 1/1,000,000 and less than 1/1000. When D4 framing
mode is selected, the UDS1 Interface circuit pack takes 41 minutes to recognize
and report a Minor alarm and 41 minutes to recognize and report that a Minor
alarm condition has cleared. If ESF framing mode is selected, the UDS1 Interface
circuit pack takes 10 minutes to recognize and report a Minor alarm and 10
minutes to recognize and report that a Minor alarm condition has cleared.
When the UDS1 Interface circuit pack detects a Minor alarm condition, it sends a
MINOR-ALARM message to the maintenance software. After the maintenance
software receives a MINOR-ALARM message, the Minor Alarm Inquiry test is
initiated to confirm the Minor alarm. Every trunk or port on the circuit pack is kept
in the in-service state after the Minor alarm is confirmed. The Minor Alarm Inquiry
test runs every 10 minutes until the Minor alarm is cleared.
555-233-142 Issue 1 May 2002 8-1267