Nt8D22 System Monitor - Nortel Meridian 1 Replacement Manual

Page 176 of 362

NT8D22 System Monitor

553-3001-520 Standard 16.00 April 2000
Replacing equipment
Use this procedure to replace the system monitor.
See the X11 Administration (553-3001-311) for a description of all
maintenance commands, and the X11 System Messages Guide
(553-3001-411) for interpreting system messages.
Removing equipment
Be sure to follow the steps in this procedure in the order shown.
Removing the system monitor before disconnecting cables may result
in loss of power and interruption of telephone service.
1 Remove the grill on the rear of the pedestal.
2 Tag and disconnect cables to the system monitor. Figure 16 shows the
location of the system monitor in the rear of an AC-power pedestal.
Figure 16
NT8D22 System Monitor in an AC-power pedestal
Main circuit
breaker
CAUTION
System monitor
Mounting screw
Power distribution
Mounting screws
unit—AC
553-3013