Nortel Communication Server 1000E Maintenance Manual page 90

90 Clearing faults
Table 30
Core fault causes and actions (cont'd.)
Condition
Red LED is lit on SSC
card
Red LED is lit on SSC
card
Possible cause
Card circuitry latched
Improperly installed
NTTK25 software
daughterboard
Defective NTTK25
software daughterboard
Improperly installed NTDK
83 IP daughterboard
Defective NTDK83 IP
daughterboard
Defective NTDK20 SSC
card
Nortel Communication Server 1000
Communication Server 1000E Maintenance
NN43041-700 04.01 4 June 2010
Copyright © 2004-2010 Nortel Networks. All Rights Reserved.
Action
Disable the SSC card. Unseat and reseat
the card and then reenable it. If the fault
persists, go to the next possible cause.
Power down the system and remove the
NTDK20 SSC card.
Unseat and reseat the software
daughterboard.
Reinsert the NTDK20 SSC circuit card.
Power up the system.
Unseat the NTDK20 SSC circuit card and
replace the software daughterboard.
Reinsert the NTDK20 SSC circuit card.
Power down the system and remove the
NTDK20 SSC card.
Unseat and reseat the IP daughterboard.
Reinsert the NTDK20 SSC circuit card.
Power up the system.
Unseat the NTDK20 SSC circuit card and
replace the IP daughterboard.
Reinsert the NTDK20 SSC circuit card.
If the fault persists, replace the NTDK20
SSC card. Reuse all daughterboards and
the security device installed on the original
NTDK20 SSC circuit card.
Enable and test the card by entering:
LD 30
TEST
If the new card passes the test, the original
NTDK20 SSC circuit card was defective.
If after a few minutes the problem reoccurs,
replace the Media Gateway.