Nortel 1000E Maintenance Manual page 85

Condition
Common visual indication
and system messages on
MG 1000E Expander
Multiple cards exhibit
problems
Nortel logo is not lit or fan
is not running
MG 1000E constantly
rebooting
Red LED on SSC card and
system messages
Media quality has
deteriorated
Intermittent trunk or line
problems
Multiple system messages
about this MG 1000E
MG 1000E Problems with transferring, placing conference calls,
or Music-on-Hold
If several users cannot transfer or place conference calls, or calls do not
receive Music-on-Hold (MOH), a circuit card that provides conference
capability may be disabled. Look up all system messages in the Software
Input/Output Reference – System Messages (NN43001-712) and follow
the instructions.
Copyright © 2007, Nortel Networks
.
Possible cause
Defective NTDK95
Expander cable
Defective Media Gateway
Loss of AC power Defective
Media Gateway
Defective SSC card
or Media Gateway or
Expander
Defective IP Links
Defective NTDK83 IP
daughterboard in MG
1000E
Nortel Communication Server 1000
Communication Server 1000E Maintenance
NN43041-700 01.02 Standard
Release 5.0 20 June 2007
Clearing MG 1000E faults 85
Action
Replace the NTDK95 cable
connecting the MG 1000E to the MG
1000E Expander.
Replace the Media Gateway.
Restore AC power.
Replace the Media Gateway.
Replace the SSC card, Media
Gateway, or Expander.
View the status of the IP links by
entering:
LD 135
STAT IPL x (x is the number for the
MG 1000E, 1 through 128)
Enable the MG 1000E by entering:
LD 32
ENLS l s (where l s are the MG
1000E loop and shelf numbers)
If the fault remains, go to the next
possible cause.
Disable the MG 1000E by entering:
LD 32
DISS l s (where l s are the MG
1000E loop and shelf number)
Replace the IP daughterboard on the
NTDK20 SSC circuit card.
If the fault remains, replace the SSC
card.