Nortel Meridian 1 Replacement Manual page 177

3 Loosen the two screws on the card and pull it out of the slot.
Note: If a slave is removed, the master considers that slave and all slaves
with a higher address as disabled. For example, if the slave designated
"XSM 2" is disabled, the master also reports slaves 3, 4, and up are
disabled.
Installing equipment
1 Set option switches on the replacement card the same as on the card you
removed. If there is a vintage change, be sure to check System
Installation Procedures (553-3001-210) for any differences.
2 Insert the replacement card into the vacated slot and tighten the two
screws on the front of the card.
3 Connect cables to the replacement card.
4 Replace the grill on the rear of the pedestal.
5 Test the system monitor:
LD 37
STAT XSM
— If a single or master system monitor was replaced successfully, you
will receive system message "PWR000 XSMC 00 0 0."
— If a slave was replaced successfully, you will receive "PWR053
XSMC xx 0 0" ("x" is the system monitor address).
— If there is a problem with a slave, you will receive system message
"PWR013 XSMC xx 0 0."
— If there is no problem, exit LD 37:
****
6 Tag defective equipment with a description of the problem and package
it for return to a repair center.
Replacing equipment
Hardware replacement
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