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7
Equipment Installation
WARNING: Do not install equipment until you have stabilized the enclosure. Install heavier equipment first and install it toward the bottom of the
enclosure. Install equipment starting from the bottom of the enclosure and proceeding toward the top of the enclosure - never the reverse. If
using sliding equipment rails, be careful when extending the rails. Do not extend more than one set of sliding equipment rails at one time. Avoid
extending sliding equipment rails near the top of the enclosure.
Note: The square holes at the middle of each rack unit are numbered and also include a small notch to aid identification. A single rack unit includes the space occupied by the
numbered hole and the holes directly above and below.
Installing or Removing Cage Nuts
WARNING: The flanges of the cage nuts should engage the sides of the square opening in the rail, not the top and bottom. Follow the instructions
in your equipment documentation to ensure proper installation of your equipment.
Installing Cage Nuts
1
Locate the numbered square openings in the mounting rails where you plan to install your equipment.
You will install cage nuts (included) into the square openings in order to provide an attachment point
for the mounting screws (included).
Note: Consult your equipment documentation to determine how many cage nuts will be required and where they will
need to be installed.
2
From the inside of the mounting rail, insert one of the flanges of the cage nut through the square
opening. Press it against the side of the square opening. Each flange should engage one side of the
square opening, not the top or bottom.
3
Compress the cage nut at the sides slightly to allow the remaining flange to fit through the square
opening. When the cage nut is properly installed, both flanges will protrude through the square
opening and will be visible on the outer surface of the mounting rail. Repeat steps 1-3 until all
required cage nuts are installed.
4
After installing the required cage nuts, use the included mounting screws and cup washers to secure
your equipment to the rack rail. Place the cup washers between the screws and the equipment
mounting brackets.
Note: Your equipment may also include mounting hardware. Read the mounting instructions that came with your
equipment before installing your equipment.
To Remove Cage Nuts, Reverse Steps 1-3
Note: You may wish to use a cage nut tool (user-supplied) to aid cage nut installation and removal.
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1 Rack Unit
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