Avaya 03-300430 User Manual

Investigate tests in the order presented.  By clearing error codes associated with the NPE 
Crosstalk test (#617), you may clear errors generated from other tests in the sequence.

Note:

The NPE Crosstalk test and the BRI Port Local TDM Loop Around test are not 
executed for ABRI-PORT/ATT-PORT/LGATE-PT/ATTE-PT.

This test is destructive.
One or more NPEs reside on each circuit pack with a TDM-bus interface.  The NPE controls 
port connectivity and gain, and provides conferencing functions on a per-port basis.  The NPE 
Crosstalk test verifies that this port’s NPE channel talks on the selected time slot and never 
crosses over to time slots reserved for other connections.  If the NPE is not working correctly, 
one-way and noisy connections may be observed.  This test is part of a port’s long test 
sequence and executes in approximately 20 to 30 seconds.  Crosstalk testing is performed on 
both B channels (B1 and B2) associated with a BRI port.  If this test fails on either channel, any 
endpoint connected to the port is taken out-of-service.

1. D = Destructive; ND = Nondestructive

NPE Crosstalk test (#617)

X

D

BRI Port Local LAN Loop Around test (#618)

X

D

BRI Port Local TDM Loop Around test (#619)

X

D

Electronic Power Feed Restoral test (#620)

X

X

ND

Level 1 Status Inquiry test (#621)

X

X

ND

Electronic Power Feed Inquiry test (#622)

X

X

ND

CRC Error Counter test (#623)

X

ND

Layer 1 Transmission Error Counter test (#624)

X

ND

Receive FIFO Overflow Error Counter  (#625)

X

ND

Clear Error Counters (#270)

X

X

ND