Nortel 1000E Maintenance Manual page 92

92 Clearing faults
Condition
Red LED on SSC card
Red LED on circuit
card
Two or more units
on a circuit card are
disabled
System message
indicating the circuit
card or units on it are
disabled
Common visual
indication and system
messages on MG
1000T Expander
Multiple cards exhibit
problems
Nortel logo is not lit or
fan is not running
Copyright © 2007, Nortel Networks
.
Possible cause
Improperly installed
NTTK25 software
daughterboard
Improperly installed
NTDK99 IP
daughterboard
Defective NTDK99 IP
daughterboard
Defective Media
Gateway or Expander
Defective circuit card
Defective NTDK95
Expander cable
Defective Media
Gateway
Defective Media
Gateway
Nortel Communication Server 1000
Communication Server 1000E Maintenance
NN43041-700 01.02 Standard
Release 5.0 20 June 2007
Action
LD 30
TEST
(this command ensures that all circuit cards
are reenabled in the MG 1000T).
Power down the MG 1000T and remove the
NTDK20 SSC card.
Unseat and reseat the software
daughterboard.
Reinsert the NTDK20 SSC circuit card.
Power up the MG 1000T.
Power down the MG 1000T and remove the
NTDK20 SSC card.
Unseat and reseat the daughterboard.
Reinsert the NTDK20 SSC circuit card.
Power up the MG 1000T.
Unseat the NTDK20 SSC circuit card and
replace the daughterboard.
Reinsert the NTDK20 SSC circuit card.
Replace the defective Media Gateway or
Expander.
Enable the circuit card by entering:
LD 32
ENLC c (where c represents the card
number)
Test the card by entering:
LD 30
UNTT c (where c represents the card
number).
If the fault persists, replace the affected
circuit card.
Replace the NTDK95 cable connecting the
MG 1000T Expansion to the MG 1000T
Expander.
Replace the Media Gateway. Enable and
test the cards by entering:
LD 30
TEST
Replace the Media Gateway