Error Control Ii Pca (Nt6M65Xx) Replacement - Nortel DMS-10 Series Quick Reference Manual

Disk Crossover PCA Replacement Procedure 43
Procedure 4
Disk Crossover PCA replacement (NT6M72xx or NT6M93xx)
Step
12 Remove the insulating material, if used. Route all wires and
cables to avoid pinching or crimping when the rear panel is
reinstalled.
13 Lift the hinged circuit assembly gate back to its vertical posi-
tion and tighten the (2) screws loosened in step 5.
14
Replace the rear panel. Reinstall the slotted pan head screws
previously removed in step 3.
Note: Align carefully before tightening to avoid stripping. Tighten the
screws, alternating until all are equally tight. Do not "cinch down" any
one screw until all are properly aligned; no binding or force needed to
turn.
15
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.
16 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.
17 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.
The procedure is complete.
Description
BMC II AMAT Quick Reference Guide