Dell PowerApp 120, 1500 manual Marking the Rack, Two-Post Open-Frame Relay Rack 1-U Hole Spacing

Marking the Rack

CAUTION: If you are installing more than one system, install the first system in the lowest available position in the rack.

1.Determine where you want to place the bottom of the system.

2.Place the 1-U template over the front of the rack in the desired location.

3.Align the bottom of the template with the desired bottom position of the system chassis.

4.Mark the upper and lower mounting positions on the vertical rails as shown by the V-notches on the sides of the template.

Each 1-U (1.75-inch) vertical space has three holes, with center-to-center spacing between holes (beginning at the center of the top hole of a 1-U space) of 0.625, 0.625, and 0.5 inch (see Figure 1-2).

1.75 inches (1 U)

0.5inch

0.625 inch

0.625 inch

0.5 inch

Figure 1-2. Two-Post Open-Frame Relay Rack 1-U Hole Spacing

support.dell.com Rack Installation Guide 1-3