Nortel Communication Server 100 Manual page 161

Table 30
Carrier Remote IPE equipment problems (cont'd.)
Symptoms
Carrier LEDs show
alarm condition.
Carrier link is OK but
remote TTY cannot
access system.
No communication
with the system
monitor.
Display on the Remote
Carrier Interface card
shows fault codes.
Error messages
printed on the MMI
terminal or the TTY.
Signaling works but no
talk path.
Amber maintenance
LED is on.
Carrier Remote IPE fault isolation and correction 161
Diagnosis
One or more carrier
alarm LEDs are on.
No activity on the
carrier.
Protocol not set
properly or terminal
not in SDI mode.
System monitor
address incorrect.
Card faulty, failed
self-test or problem
communicating with
intelligent peripheral
equipment.
Hardware or software
problems with the
Carrier Remote IPE.
Carriers are crossed
over.
External loopback left
in place no end-to-end
connection.
Test is performed
over one or more
carrier in the link.
Alarms disabled. SW1
position 2 set wrong.
Nortel Communication Server 1000
Carrier Remote IPE Fundamentals
NN43021-555 04.01 4 June 2010
Copyright © 2007-2010 Nortel Networks. All Rights Reserved.
Solution
Alarm Level 2 or 3. Alarm Level 2 allows voice
calls but no new data calls on the carrier. Check
carrier link connections and go to
"Performing the Local Carrier Interface system
loopback tests" (page 168)
the loopback test.
Check the protocol setup and make sure the
MMI terminal is in the host SDI mode.
Observe the system messages on the MMI
terminal and check the description of these
messages listed in "System messages" (page
187). Use this information to locate and correct
the fault.
Go to Procedure 40 "Performing the Remote
Carrier Interface card self-test" (page 171)
Procedure 41 "Performing the Remote Carrier
Interface card loopback test" (page 173)
check tracking and loopback. Also refer
to Software Input Output Administration
(NN43001-611) () for a list of codes. Based on
the maintenance display codes description, take
the appropriate action and resolve the problem.
Note various error messages. Refer to
messages" (page 187)
Output Administration (NN43001-611) () for a
list of these messages and their description.
Based on the code's description, take the
appropriate action to resolve the problem.
Check each carrier and make sure they are not
crossed over. Refer to "Connecting the carrier
link to the Remote IPE module" (page
Remove the external loopback.
Wait until the test is completed and analyze the
test data.
Enable the alarms.
Set SW1 position 2 correctly.
Procedure 39
to test the link using
and
to
"System
and Software Input
96).