Dell PowerEdge R300 User Manual download pdf (Page 12)

10 Four-Post Rack Installation

Installation Tasks

Installing a rack kit involves performing the following tasks (described in detail in subsequent sections)

in their numbered order:

Removing the rack doors

Marking the rack

Configuring the sliding rail assemblies (sliding rail kits only)

Installing chassis static rail modules (static rail kits only)

Installing the mounting rails in the rack

Installing the system in the rack

Installing the tray and cable-management arm (sliding rail kits only)

Routing cables

Replacing the rack doors

Removing the Rack Doors

See the procedures for removing doors in the documentation provided with your rack cabinet.

CAUTION: Because of the size and weight of the rack cabinet doors, never attempt to remove or install them

by yourself.

CAUTION: Store the two doors where they will not injure someone if the doors accidently fall over.

Marking the Rack

For a 1-U system, you must allow 1 U (44 mm, or 1.75 inches) of vertical space for each system you install

in the rack.

Rack cabinets that meet EIA-310 standards have an alternating pattern of three holes per rack unit with

center-to-center hole spacing (beginning at the top hole of a 1-U space) of 15.9 mm, 15.9 mm, and 12.7 mm

(0.625 inch, 0.625 inch, and 0.5 inch) for the front and back vertical rails (see Figure 1-3). Rack cabinets may

have round or square holes.

NOTE: The vertical rails may be marked by horizontal lines and numbers in 1-U increments. If you want, you can

make a note of the number marking on the rack’s vertical rail. It is not necessary to mark or place tape on the rack.

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Dell PowerEdge R300 User Manual Page 12