Nortel DMS-10 Series Installation, Operation And Maintenance Manual page 633

Procedure 6-45
Bus Terminator PCA replacement (NT6M68AA) - version numbers H01 or later
Step Description
137
Hold the cables out of the way. Remove the suspected faulty Bus Terminator PCA
(using firm, even pressure) by inserting a finger in the hole in the PCA.
138
Insert the replacement Bus Terminator PCA. This pack requires high insertion force for
proper seating. Use a thimble or other mechanical aid.
139
Put faulty PCA in the empty electrostatic bag.
140
Fold the TEC/DSI cables back into position along the outer wall of the chassis.
141
Remount the ribbon cable shield over the TEC/DSI cables. If the shield does not fit
properly, check the folding of the TEC/DSI cables. Do not crimp these cables.
142
Insert the two screws to hold the cable shield in place. Remove the cardboard sheet
after this step. Do not overtighten. This step requires one person at the rear of the IOE
frame and another person at the front of the IOE frame. The person at the front of the
IOE frame should hold the ribbon shield cable in place.
143
Reinsert the TEC/DSI PCAs (slots 12 and 13) and the SCSI Interface PCA (slot 11).
Return the TEC/DSI PCAs to the appropriate locations.
144
Reattach the TEC/DSI cables.
145
Apply power to the BMC chassis by resetting the rocker switch in step 8 above.
Wait for start-up activity to end and the message, Software Loaded or S/W Loaded, to
be displayed.
146
To clear any alarms on the standby processor, enter the following at the maintenance
terminal:
>DOS S RSERR 00 (cr)
Alarms will clear on the standby processor if there are no faults.
BMC II BISYNC Operation, Administration, and Maintenance Guide BMCB001 and up
Section 060-INDP-610 Maintenance Procedures Guide 6-195
(Sheet 3 of 4)