Nortel 1000E Maintenance Manual page 82

Page 82 of 162 Clearing faults
Table 16
MG 1000E fault causes and actions (Part 3 of 3)
Condition
Nortel Networks 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
553-3041-500 Standard 1.00
Possible cause
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
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
September 2004
Action
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.