Nortel Communication Server 100 Manual page 166

166 Carrier Remote IPE maintenance
5
Performing the Local Carrier Interface system loopback tests
If the Local Carrier Interface card self-test indicates that the card is not
faulty, conduct loopback tests to isolate the problem that might exist on
network cards, network buses, or carrier link connections between the
Local Carrier Interface card and the Remote Carrier Interface card.
the Local Carrier Interface card passed the self-test and
is functional, but must be enabled to turn off the red LED
and become active.
If the Local Carrier Interface card passed the self-test,
but the problem persists, the carrier link or other cards
that interface with the Local Carrier Interface card might
be faulty. To verify the integrity of the network bus and
connections between the Local Carrier Interface card
and other network and intelligent peripheral equipment
cards interfacing with the Local Carrier Interface card, go
to Procedure 39 "Performing the Local Carrier Interface
system loopback tests" (page
If the response is:
TEST FAILED REASON: xxxx
XPEC NOT CONNECTED
the Local Carrier Interface card failed the self-test and is
faulty, where xxxx can be one of the following values:
0–ROM checksum failed
1–FLASH checksum failed
2–A21 #1 faulty
3–A21 #2 faulty
4–R71 faulty
Replace the Local Carrier Interface card as described
in "Removing and replacing a Local Carrier Interface
card" (page
as a result of a command-activated self-test if the Local
Carrier Interface card is missing, not configured, and so
on.
Exit LD 32 by typing **** at the prompt.
Nortel Communication Server 1000
Carrier Remote IPE Fundamentals
NN43021-555 04.01 4 June 2010
Copyright © 2007-2010 Nortel Networks. All Rights Reserved.
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