Avaya S8700 Maintenance Manual page 389

TBRI-PT (ISDN Trunk-Side BRI Port)
Table 8-463. Test #617 NPE Crosstalk Test — Continued
Error Test
Code Result Description / Recommendation
PASS The port is correctly using its allocated time slots.
1. To be sure that this is not an intermittent problem, repeat this test up to 10
2. If complaints still exist, examine the connections and wiring.
BRI Port Local LAN Loop-Around Test (#618)
This test is destructive.
This test checks the connectivity of the BRI port across the LAN bus. Because
this test is destructive, run this test only if the port is out-of-service.
Failures of this test indicate either on-board faults associated with the TBRI-PT
hardware on the circuit pack or problems with the LAN Bus, which is used to form
connectivity between the switch and the TBRI-PT.
If the port is in a state other than out-of-service, the BRI Port Local LAN
Loop-Around test will abort. If the port is out-of-service, then the port is put into a
local loop-around mode and the following test is executed.
A loop-around test is performed across the Packet bus for the D channel. The
switch sends data over a packet connection, which is looped back by the BRI port
(D channel) and received back by the switch. The test passes if the packet
connection can be established and the transmitted data is received unaltered.
The test aborts if the Packet bus is alarmed in the Processor Port Network (or the
port network where that circuit pack resides) or if the Packet Interface board is
out-of-service. The test fails due to either on-board faults associated with the BRI
port hardware on the circuit pack or problems with the LAN bus.
555-233-142
times to ensure it continues to pass.
Continued on next page
Issue 1 May 2002 8-1085