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DEFINITY Enterprise Communications Server Release 5
Maintenance and Test for R5vs/si
555-230-123
Issue 1
April 1997
Maintenance Object Repair Procedures
Page 10-140ASAI-PT
10
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 10-5 show how a Looparound Test is performed across
the Packet Bus for the D-channel.
Figure 10-5. BRI Port Local LAN Looparound Path
1. D = Destructive; ND = Nondestructive
BRI LINE
CIRCUIT
PACK
PACKET
INTERFACE
PACKET BUS
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