Nortel Meridian 1 Hardware Replacement Manual page 174

Page 174 of 250
553-3001-520 Standard 17.00 January 2002
Replacing equipment
Figure 15
NT8D22 System Monitor in an AC-power pedestal
Main circuit
breaker
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."
System monitor
Mounting screw
Power distribution
Mounting screws
unit—AC
553-3013