Installing the slide assemblies in the rack – Dell PowerEdge 2850 User Manual

Page 26

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Rack Installation Guide

To mark the rack, perform the following steps:

1

Place a mark on the rack’s front vertical rails where you want to locate the bottom of the
system you are installing in the two-post rack.
The bottom of each 1-U space is at the middle of the narrowest metal area between holes.

NOTE:

If your rack has wide-hole spacing, go to step 3.

2

Place a mark 88 mm (3.5 inches) above the original mark you made (or count up six holes in
a rack with universal-hole spacing (see Figure 1-13).
Each 1-U (44 mm, or 1.75 inches) of vertical space on a rack with universal-hole spacing has
three holes with center-to-center spacing between holes (beginning at the top of a 1-U space)
of 0.625, 0.625, and 0.5 inches (see Figure 1-13).

NOTE:

If your rack has universal-hole spacing, you have completed the procedure for marking the rack.

3

Place a mark 88 mm (3.5 inches) above the original mark you made (or count up to the fourth
hole in the rack with wide-hole spacing (see Figure 1-14).
Each 1-U (44 mm, or 1.75 inches) of vertical space on a rack with wide-hole spacing
has two holes with center-to-center spacing between holes (beginning at the top of
a 1-U space) of 31.7 mm (1.25 inches) (see Figure 1-14).

Installing the Slide Assemblies in the Rack

You can install the slide assemblies in a two-post open-frame rack having either universal-hole
spacing (see Figure 1-13) or wide-hole spacing (see Figure 1-14). You can install the 2-U slide
assemblies in either a flush-mount or center-mount configuration.

CAUTION:

Do not attempt to install another system using this rack kit. Use only the rack kit intended

for your system. Using the rack kit for another system may result in damage to the system and personal
injury to yourself and to others.

Center-Mount Installation

The two-post rack kit is shipped with the brackets configured for center-mount installation.
To complete the installation, perform the following steps:

1

Locate the right slide assembly and push the back bracket toward the back of the slide
assembly (see Figure 1-16).

2

Position the right slide assembly in the two-post rack at the location you marked, push the
back bracket forward against the vertical two-post rack, secure the front center mounting
bracket with two 12-24 x 0.5-inch pan-head Phillips screws, and secure the back center-
mounting bracket to the rack with three 12-24 x 0.5-inch pan-head Phillips screws
(see Figure 1-16).

3

Repeat steps 1 and 2 to install the left slide assembly in the rack.

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