Nortel DMS-100 Series Maintenance Manual page 497

At the OPM cabinet
5 Turn the circuit breaker OFF for the unit in which the power converter is being
replaced. Use the table below to determine which FSP circuit breaker serves
the unit.
Circuit breaker
CB6
CB7
CB6
CB6
CB7
CB7
Note: For the NTNX14AA cabinet the circuit breaker assignments are:
Circuit breaker
CB2
CB7
6 Replace the NT6X53 card as shown in the following figures.
OPM card replacement procedures
Unit FED
LCA 0
LCA 1
LCA 0
LCA 0
LCA 1
LCA 1
Unit FED
LCA 0
LCA 1
DMS-100 Family OPM Maintenance Manual XPM14 and up
NT6X53
in an OPM
(continued)
Locations
Shelf 04 slot 01
(OPM)
Shelf 21 slot 01
(OPM)
Row A bay 0 slot 01
(OPM-640)
Row A bay 0 slot 01
(OPM-256)
Row A bay 0 slot 01
(OPM-640)
Row A bay 0 slot 23
(OPM-256)
Locations
bay 0 slot 01
bay 0 slot 01
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