Nortel Communication Server 100 Manual page 170

170 Carrier Remote IPE maintenance
5
Remote Carrier Interface card fault isolation and correction
The Remote Carrier Interface card provides a communication interface
between the Local Carrier Interface card and the IPE cards housed in the
Carrier Remote IPE module or cabinet.
Problems with the Remote Carrier Interface card can be caused by
hardware faults, incorrect configuration, a disabled Remote Carrier
Interface card, or continuity problems between the card and IPE cards
connected to the peripheral bus. To isolate and correct the Remote
Carrier Interface card-related problems, follow the steps in
"Performing the Remote Carrier Interface card self-test" (page 171)
Procedure 41 "Performing the Remote Carrier Interface card loopback test"
(page
Performing the Remote Carrier Interface card self-test
If the Remote Carrier Interface card is faulty, conduct the self-test to
verify that it is actually faulty before replacing it. This test verifies the
basic Remote Carrier Interface card functions and outputs a fail or
pass message after the test is completed. During the self-test, the
Remote Carrier Interface card displays HEX messages indicating the test
performed. To identify the codes displayed, refer to Table 22 on page 221.
Command
LBTN
TAG x
Check the loopback test results.
The results are automatically displayed if XCON 0 test conditions
were specified; otherwise, specify XSTA or XSTP with the test
TAG number to check the status. XSTA obtains the status of the
manual continuity test. XSTP stops the manual continuity test.
If the results show BSDxxx messages, refer to the list and
description of these messages in Software Input Output
Administration (NN43001-611) (). The BSDxxx messages
indicate the possible causes of the problem, which should be
checked to isolate the actual problem.
If the loopback continuity test passes, the problem may be
somewhere in the IPE cards.
If the loopback continuity test fails, go to
"Performing the Remote Carrier Interface card self-test" (page
171).
173).
Nortel Communication Server 1000
Carrier Remote IPE Fundamentals
NN43021-555 04.01 4 June 2010
Copyright © 2007-2010 Nortel Networks. All Rights Reserved.
Response Description
l1 s 99 Special Remote Carrier Interface
loopback channel
0–15 Tag number assigned by the system
--End--
Procedure 40
Procedure 40
and