Avaya S8700 Maintenance Manual page 1754

Maintenance-Object Repair Procedures
Serial Channel Local Loop-Around Test (#229)
This test checks TN775D on-board circuitry associated with the serial links to the
Expansion Interface circuit packs. A request is sent to the PN's Maintenance
circuit pack over the active link via the active Expansion Interface circuit pack
serial interface circuitry to test the serial interface circuitry of the standby
Expansion Interface circuit pack link. If a response is received, then by definition
the serial interface circuitry associated with the active link is good.
The PN's Maintenance circuit pack has 3 separate serial interfaces, one to each
of the following:
Management terminal which is tested by Test #228
Active EI circuit pack which is tested by Test #229
Standby EI circuit pack which is tested by Test #229
Table 8-408. Test #229 Serial Channel Local Loop-Around Test
Error Test
Code Result Description / Recommendation
1000 ABORT System resources required to run this test are not available.
2000 ABORT Response to the test request was not received within the allowable time period.
2033 ABORT Internal system error.
1. Retry the command at 1-minute intervals up to 5 times.
2034 ABORT Background maintenance on the PN's Maintenance circuit pack is running the
Serial Channel Local Loop-around test.
1. Wait 30 seconds, and retry the test up to 5 times.
22901 ABORT Test disabled via software patch.
8-1032 Issue 1 May 2002
Continued on next page
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