To prevent injury, keep your back straight and lift with your legs, not your back. To prevent damage to the chassis and components, never attempt to lift the chassis with the handles on the power supplies or on the interface processors, or by the plastic panels on the front of the chassis. These handles were not designed to support the weight of the chassis. Install the switch in the rack to ensure that heavier equipment is at the bottom of the rack to maintain a low center of gravity and prevent the rack from becoming top-heavy and tipping over. Two L brackets, which you attach to either the front or back of the chassis, and the mounting posts connect the chassis to the rack.
Some equipment racks provide a power strip along the length of one of the rear posts.
If your rack has this feature, consider the position of the strip when planning fastener points, and before you install the L brackets on the chassis, determine whether you will install the chassis from the front or the rear of the rack. Step 1 Place the chassis on the floor or on a sturdy table as close as possible to the rack, with clearance to allow you to move around the chassis. Step 2 Use a tape measure to measure the depth of the rack. Measure from the outside of the front mounting posts to the outside of the rear mounting strip. See Figure 3-1 .