Communication Server Large System Installation and Commissioning

Page 364 of 456 Adding a module to a column
NN43021-310 Standard 02.01 December 2007
A module can be added to a column in one of three positions. A specific
procedure is provided for each situation.
• “Adding a module to the base of a column” on page 364
• “Adding a module between two other modules” on page 370
• “Adding a module to the top of a column” on page 374
If the column is equipped with earthquake bracing, the column support rods
must be removed and longer rods must be installed after the module is added.
To change the rods, see “Installing earthquake bracing” on page 343.
Adding a module to the base of a column
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.
WARNING
A fully loaded module weighs approximately 60 kg
(130 lbs). More than one person is required to move
a module.
DANGER OF ELECTRIC SHOCK
In a DC-powered system, power to the column can
remain on during the following procedures. In an
AC-powered system, however, power to the entire
column must be shut down throughout the
procedures.