Installing the support rails: 2145 UPS-1U

You must install the support rails in the rack before installing the 2145 UPS-1U.

Before you begin

Complete these prerequisites before installing the support rails:
  1. Use the customer's hardware-location chart to determine where in the rack to install the 2145 UPS-1U.
  2. At the back of the rack, observe the Electronic Industries Alliance (EIA) positions and determine where you are going to install the 2145 UPS-1U. Because of its weight, position the 2145 UPS-1U where it is easy to handle in one of the lower positions in the rack.

About this task

Complete the following steps to install the support rails for the 2145 UPS-1U.

Procedure

  1. Open the top of the 2145 UPS-1U shipping carton. Grip the flaps on either side of the 2145 UPS-1U.
  2. Lift the 2145 UPS-1U clear of the shipping carton and place it on a flat, stable surface with the front facing you.
  3. Attach the long side of a mounting bracket  1  to each side of the 2145 UPS-1U using four M3 × 6 screws  2  for each bracket, as shown in Figure 1 .
    Figure 1. Installing the 2145 UPS-1U mounting brackets for the 2145 UPS-1U
    This picture shows how to install the mounting brackets onto the UPS.
  4. Loosen the wing nuts ( 1  and  2 ) on both rail assemblies and adjust the rail size to the depth of your rack. After you adjust the depth, tighten the wing nuts as much as possible while still allowing some movement.

    Refer to Figure 2 for information about how to tighten or loosen wing nuts and achieve a desired rail depth.

    Figure 2. Adjusting the rail depth on the 2145 UPS-1U
    This picture shows how to adjust rail depth for your UPS.
    • Wing nut  1 
    • Wing nut  2 
  5. Select the holes in the rail where you want to position the uninterruptible power supply.

    The figure shows the rear rail where the 2145 UPS-1U attaches to the rack. See Figure 3.

    Note: The bottom flange of the support rail must align with the EIA mark on the rack.
    Figure 3. Attaching the rear of the 2145 UPS-1U rail to the rack
    This picture shows how to attach the rear of the rail to the rack.
  6. Install 2 clip nuts  2  and 2 M6 x 10 screws  1 , to attach the rail to the rear of the rack.
  7. Install 2 clip nuts  2  and  3  to the front of the rack. Then attach the rail using just 1 M6 x 10 screw  1  in the bottom mounting hole as shown in Figure 4.
    Note:
    1. The extra clip nut  3  is reserved for later installation of the 2145 UPS-1U when the mounting brackets must be attached to the vertical rail on the rack.
    2. The rack might be different from the one shown here, and if so, might require different clip nuts or fasteners.
    Figure 4. Attaching the front of the 2145 UPS-1U rail to the rack.
    This picture shows you how to install the front of the rail on your rack.
  8. Repeat steps 6 and 7 for the other rail.
  9. Tighten the wing nuts on both rail assemblies.
Parent topic: Removing and replacing 2145 UPS-1U parts