DS1-BD (DS1 Interface Circuit Pack)
Issue 1 May 2002
8-601
555-233-143
All trunks on the DS1 Interface circuit pack must be busied out via the system
technician busyout board command before running the Internal Looparound test.
When the Internal Looparound test is initiated, maintenance software sends
appropriate messages to the DS1 Interface circuit pack to start the test. The test
uses the Tone Generator and Tone Detector to exercise a bit pattern consistency
test for all ports. If the transmitted and received bit patterns on a trunk are
different, the test fails.
When the test is complete, the maintenance software sends a stop loop around
message to the DS1 Interface circuit pack to put the circuit pack back into the
normal operation mode. All trunks of the DS1 Interface circuit pack are restored
to the in-service state after the release board command is entered
Table 8-244.
Test #135 Internal Loop-Around Test
Error
Code
Test
Result
Description / Recommendation
2012
ABORT
Internal system error
1. Retry the command at 1-minute intervals up to 5 times.
1002
ABORT
The system could not allocate time slots for the test. The system may be under
heavy traffic conditions or it may have time slots out-of-service due to
TDM-BUS errors.
1. If system has no TDM-BUS errors and is not handling heavy traffic, repeat
test at 1-minute intervals up to 5 times.
1003
ABORT
The system could not allocate a tone receiver for the test. The system may be
oversized for the number of Tone Detectors present, or some Tone Detectors
may be out of service.
1. Resolve any TTR-LEV errors.
2. Resolve any TONE-PT errors.
3. If neither condition exists, retry the test at 1-minute intervals up to 5 times.
1004
ABORT
Received an incoming call on a port of the DS1 circuit pack during the test.
1. Enter the busyout board UUCSS command to put every trunk on the DS1
circuit pack into the out-of-service state.
2. Retry the command at 1-minute intervals up to 5 times.
1015
ABORT
Ports on DS1 Interface circuit pack have not been busied out.
1. Enter the busyout board UUCSS command to put every trunk on the
DS1circuit pack into the out-of-service state.
2. Retry the command.
Continued on next page
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 ...