Nortel DMS-100 Manual page 137

2-90 System level recovery procedures
Recovering from a dead system in a SuperNode SE switch
11
12
13
14
15
At the remote oscillator shelf
16
At the SCC cabinet
17
18
19
20
21
297-8021-545 Standard 14.02 May 2001
Insert the replacement alarm-indicating fuse in to the fuse holder.
Proceed as follows:
If the
fuses have blown repeatedly
fuse replacement is successful
Contact the next level of support for help.
Replace all blown fuses correctly, and restore power to the SCC and network
cabinets. Go to step 14.
Restore power from the PDC to the peripheral module frames if a second
person is available to help. The second person uses the information
described in steps 106 through 143 of this procedure to restore power. While
the second person restores power, complete steps 15 through 95 to recover
the core and network. If only one person is available, recover the core and
network first.
Determine if the switch has a remote oscillator shelf (Bliley shelf).
If the switch
has a remote oscillator shelf
does not have a remote oscillator
shelf
Turn on the power converters for the shelf.
Locate the two NT9X31 power converters for message switch 0 (MS 0) and
message switch 1 (MS 1).
Note: Slots 1F and 33F on the MS shelf contain the NT9X31 power
converters.
Ensure that the power converters are off. If they are not off, turn off the power
converters by pushing down and releasing the power switches located on the
faceplate of each converter.
Turn on the NT9X31 power converters at the same time. Lift and release the
power switches on the faceplates of the converters to turn on the NT9X31
power converters.
Locate the two NT9X30 power converters for MS 0 and MS 1.
Note: Slots 4F and 36F on the MS shelf contain the NT9X30 power
converters.
Turn on the NT9X30 power converters at the same time. Lift and release the
power switches on the faceplates of the converters to turn on the NT9X30
power converters.
Do
step 13
step 14
Do
step 16
step 17
(continued)