Northern Telecom Meridian SL-1 Reference Manual page 11

Chart 2-1
CE/PE1 breaker on QUX19 unit trips
St ep Ac ti on
1 Reset breaker.
2 Unseat the QPC659 buffer
pack in the PE shelf in the
first tier (base) of the
cabinet. Reset breaker.
3 Set breaker to OFF.
Unseat all remaining circuit
packs from PE shelf.
Set breaker to ON.
4 Set breaker to OFF. Insert
QPC659 pack.
Reset breaker ON.
5 Reinsert circuit packs one-
at-a-time until circuit
breaker trips.
2-Mb/s Remote Peripheral Equipment
Fault detection and locating 2-7
Ver if i cat io n
If breaker does not trip, fault has
cleared.
If breaker trips, proceed with next
step.
If breaker trips, replace power
distribution cable at rear of cabinet.
If breaker does not trip, proceed with
next step.
If breaker trips, replace the shelf
backplane.
If breaker trips, replace defective
QPC659 pack.
If breaker trips when a pack is
inserted, it is defective. Replace
pack.
Appendix 1 to 553-2741-500