Nortel DMS-10 Series Installation, Operation And Maintenance Manual page 607

Procedure 6-40
SCSI Crossover PCA replacement (NT6M93BA)
Step Description
51
Clear any alarms on the BMC. At the maintenance terminal, enter:
>RSERR 00 (cr)
>DOS S RSERR 00 (cr)
Alarms will stay clear on the BMC if there are no faults.
52
Place the active processor unit in PRIME mode. At the Switch and Status Panel of the
BMC:
a. Press the A/B Select Switch to match the active processor.
b. Press the O/P Mode Select Switch to P.
c. Turn the Mode Switch to the right and release.
53
When all maintenance activities are complete, be sure to replace the front panel of the BMC
if removed. Carefully line up the four captive screws of the front panel with their mounting
holes. Tighten the captive screws; but do not bear down.
At this time the procedure is complete.
BMC II BISYNC Operation, Administration, and Maintenance Guide BMCB001 and up
Section 060-INDP-610 Maintenance Procedures Guide 6-169
(Sheet 4 of 4)