Nortel DMS-10 Series Installation, Operation And Maintenance Manual page 627

Bus Terminator PCA Replacement (NT6M68AA)
See the following procedures for replacing this PCA. Refer to Table 6-23 and
Figure 6-23 for a description of the switch and jumper options on this PCA.
Procedure 6-44
Bus Terminator PCA replacement (NT6M68AA) - version numbers G12 or earlier (e.g., D09 or
E12)
Step Description
CAUTION
Since all BMC PCAs are static sensitive, be careful when handling them.
Wear a wrist grounding strap when working with the BMC.
WARNING
Since the BMC is powered up during this procedure, observe all safety
procedures for operations on live equipment.
99
Get the BMC's model number from the BMC nameplate (A chassis, rear panel)
WARNING
Perform this procedure during low traffic.
100
To remove the front panel of the BMC, loosen the four screws located on the left and
right hand sides. Once removed, put the front panel in a safe place to avoid damage,
bending and scratching.
101
Get the replacement PCA from the spares kit.
102
Remove the protective electrostatic bag and place it on a suitable, grounded surface.
103
Make sure the replacement PCA matches the faulty PCA's part number and has the
correct revision level. Also, make sure the suspected faulty PCA is in the standby
processor.
BMC II BISYNC Operation, Administration, and Maintenance Guide BMCB001 and up
Section 060-INDP-610 Maintenance Procedures Guide 6-189
(Sheet 1 of 4)