Dell PowerEdge SC1435 Rack Installation Guide - Page 12

Installation Tasks Installing a rack kit involves performing the following tasks (described in detail in subsequent sections) in their numbered order: 1 Removing the rack doors 2 Marking the rack 3 Configuring the sliding rail assemblies (sliding rail kits only) 4 Installing chassis static rail modules (static rail kits only) 5 Installing the mounting rails in the rack 6 Installing the system in the rack 7 Installing the tray and cable-management arm (sliding rail kits only) 8 Routing cables 9 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. 10 Four-Post Rack Installation