DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126
Issue 4
June 1999
Maintenance Object Repair Procedures
9-138ASAI-PT
9
BRI Port Local LAN Looparound 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 9-2
show how a Looparound Test is performed across
the Packet Bus for the D-channel.
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
1. D = Destructive, ND = Non-destructive
Table 9-54. System Technician-Demanded Tests: ASAI-PT — Continued
Order of Investigation
Short Test
Sequence
Long Test
Sequence D/ND
1
Continued on next page
