Communication Server Large System Installation and Commissioning

Page 370 of 456 Adding a module to a column
NN43021-310 Standard 02.01 December 2007
Adding a module between two other modules
If conduit or other cabling runs through modules that are being moved, you
must tag and disconnect the cables, pull them out of the modules, and reroute
them after all of the modules are repositioned.
The top cap can remain on the module to which it is attached.
Procedure 71
Adding a module between two other modules
1 Disconnect and remove the NT8D22 System Monitor for the column in the
rear of the pedestal (do not turn off the blower unit in the front of the
pedestals):
a. If the column houses the master system monitor, load LD 37, and
software disable the associated SDI port:
LD 37
DIS TTY x disable the device associated with the port
b. Disconnect the RJ11 cable to J3, then the cable to J6, then pull the
system monitor out of the slot.
2 Turn off power as necessary:
• With AC power, set the main circuit breaker for the column to OFF
(down) in the rear of the pedestal.
• With DC power, set the switch on the module power supply and the
circuit breaker in the rear of the pedestal to OFF (down) for any
module that will be moved and for the module being added. (All other
modules in the column can safely retain power.)
DANGER OF ELECTRIC SHOCK
Due to hazardous voltage in AC-powered systems,
power to the entire column must be shut down. This
shuts down all functions in the column.