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ASAI-PT
Issue 1 June 2005 497
System Technician-Demanded Tests:
Descriptions and Error Codes
Investigate tests in the order presented. By clearing error codes associated with the ASAI Port
Local LAN Looparound test (#618), you may also clear errors generated from other tests in the
testing sequence.
BRI Port Local LAN Loop-Around Test (#618)
This test is destructive.
This test verifies the connectivity of a BRI port across the LAN Bus and executes only if the port
is out-of-service. The test aborts if calls associated with the port are in-progress. Failures of
this test indicate either on-board faults associated with the ASAI-PT hardware on the circuit
pack or problems with the LAN Bus, which is used to form connectivity between the switch and
the ASAI-PT.
The dotted lines in Figure 24: BRI Port Local LAN Loop-Around Path
on page 498 show how a
loop-around test is performed across the packet bus for the D channel.
Table 150: System Technician-Demanded Tests: ASAI-PT
Order of Investigation Short Test
Sequence
Long Test
Sequence
D/ND
1
1. D = Destructive, ND = Nondestructive
ASAI Port Local LAN Looparound test (#618) X D
Level 1 Status Inquiry test (#621) X X ND
CRC Error Counter test (#623) X ND
Layer 1 Transmission Error Counter test (#624) X ND
Receive FIFO Overflow Error Counter test (#625) X ND
Clear Error Counters (#270) X X ND