Nortel DMS-100 Manual page 106

Recovering from a dead system in a SuperNode switch
13 Contact your next level of support for help.
When you replace all blown fuses, and power returns to the DPCC and
network cabinets, proceed to step 14.
14 To assist in the recovery, a second person can restore power from the PDC
to the peripheral module frames. Steps 103 through 136 of this procedure
describe power restoration. To recover the core and network, complete steps
15 through 89. If only one person is available, recover the core and network
first.
15 Determine if the switch is equipped with a remote oscillator shelf (Bliley shelf).
At the remote oscillator shelf
16 Turn on the power converters for the shelf.
At the DPCC cabinet
17 Locate the two NT9X47 power converters for the system load module (SLM)
shelf from slots 1F and 33F on that shelf.
18 Turn on the two NT9X47 power converters at the same time, lift and release
the power switches. The power switches are located on the faceplates of the
converters.
19 Locate the two NT9X30 power converters for the SLM shelf from slots 4F and
36F on that shelf.
20 Turn on the two NT9X30 power converters at the same time, lift and release
the power switches. The power switches are located on the faceplates of the
converters.
21 Locate the NT9X31 and NT9X30 power converters for the message switch 0
(MS 0) shelf. Locate these power converters in slots 1F, 4F, 33F, and 36F on
the MS 0 shelf.
22 Make sure the NT9X31 and NT9X30 power converters are turned off. If the
power converters are turned on, turn off both converters. To turn off the
power converters, push and release the power switches. The power switches
are located on the faceplates of the converters.
23 Turn on the NT9X31 and NT9X30 power converters in slots 33F and 36F at
the same time, lift and release the power switches. The power switches are
located on the faceplates of the converters.
24 Turn on the NT9X31 power converter in slot 1F first, and the NT9X30 power
converter in slot 4F last. To turn on the power converters, lift and release the
power switches. The power switches are located on the faceplates of the
converters.
If the switch
is equipped with a remote oscil-
lator shelf
is not equipped with a remote
oscillator shelf
DMS-100 Family NA100 Recovery Procedures LET0015 and up
System level recovery procedures
Do
step 16
step 17
2-59
(continued)