UDS1-BD (UDS1 Interface Circuit Pack)
Issue 1 May 2002
8-1765
555-233-143
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.
Summary of Contents for S8700 Series
Page 50: ...Maintenance Architecture 555 233 143 1 26 Issue 1 May 2002 ...
Page 74: ...Initialization and Recovery 555 233 143 3 12 Issue 1 May 2002 ...
Page 186: ...Alarms Errors and Troubleshooting 555 233 143 4 112 Issue 1 May 2002 ...
Page 232: ...Additional Maintenance Procedures 555 233 143 5 46 Issue 1 May 2002 ...
Page 635: ...status psa Issue 1 May 2002 7 379 555 233 143 status psa See status tti on page 7 406 ...
Page 722: ...Maintenance Commands 555 233 143 7 466 Issue 1 May 2002 ...