Dell Networking C9010 Installation Manual page 14

3. Install the rack bar on the front posts just below the desired height of the bottom of the chassis. The
rack bar requires 1 RU below the chassis.
Use the rack bar as a guide to mount the chassis. It is not required to support the weight of the
chassis; you can remove it when the chassis is securely mounted in the rack. To install the rack bar,
first insert two cage nuts (item 2 in Figure 6) into each post at the desired height.
Hold the rack bar (item 1 in Figure 6) so that the smooth side faces outward and the arrows point
upward. Align the holes in the rack bar with the cage nuts in the posts. Attach the bar to the front-
rack posts using the mounting screws and washers shipped with the rack bar (items 3 and 4 in Figure
6). Tighten each screw to secure the rack bar to the posts.
NOTE: The installation procedure in this section describes how to install the C9010 in a 4-post
rack using the rack bar provided in the base configuration package. For information about how
to use Dell ReadyRails or a rack mount tray to install the C9010, follow the instructions in
Installing Dell ReadyRails
Figure 6. Installing a Rack Bar in a 4-Post Rack
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or Installing a Rack Mount Tray. Then continue with Step 4.
Installing the Hardware