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Mounting an EX Series Redundant Power System on Four Posts in a Rack or Cabinet

 

You can mount a Redundant Power System (RPS) on four posts of a 19-in. rack or cabinet by using the separately orderable four-post rack-mount kit. (The remainder of this topic uses “rack” to mean “rack or cabinet.”)

Note

You can position either the switch connector side or the power supply side of the RPS at the front of the rack.

Before mounting the RPS on four posts in a rack:

Ensure that you have the following parts and tools available:

  • Phillips (+) screwdriver, number 2

  • 6 flat-head 4-40 mounting screws (provided with the four-post rack-mount kit)

  • 12 flat-head 4x6-mm Phillips mounting screws (provided with the four-post rack-mount kit)

  • One pair each of flush or 2-inch-recess front brackets

  • One pair of side-rail brackets

  • One pair of rear brackets

  • Screws to secure the chassis and the rear brackets to the rack (not provided)

Note

We recommend that you first mount the RPS and then install the power supplies in it.

Caution

If you are mounting multiple RPSs on a rack, mount the heaviest RPS at the bottom of the rack and mount the other RPSs from the bottom of the rack to the top in decreasing order of the weight of the units.

To mount the RPS on four posts in a rack:

  1. Attach the front brackets (either the flush or the 2-inch-recess brackets) to the side-rail brackets using the six 4-40 flat-head Phillips mounting screws. See Figure 1.
    Figure 1: Attaching the Front Bracket to the Side-Rail Bracket
    Attaching
the Front Bracket to the Side-Rail Bracket
  2. Place the RPS on a flat, stable surface.
  3. Align the side-rail brackets along the side panels of the chassis.
  4. Insert the 4x6-mm Phillips flat-head mounting screws into the aligned holes and tighten the screws. See Figure 2.
    Figure 2: Attaching the Side-Rail Bracket to the Chassis
    Attaching the
Side-Rail Bracket to the Chassis
  5. Have one person grasp both sides of the RPS, lift the RPS and position it in the rack, aligning the side-rail bracket holes with the threaded holes in the front post of the rack. Align the bottom hole in both the mounting brackets with a hole in each rack rail, making sure the chassis is level. See Figure 3.
    Figure 3: Mounting the RPS to the Front Posts of a Rack
    Mounting the RPS to
the Front Posts of a Rack
  6. Have a second person secure the front of the RPS to the rack by using the appropriate screws for your rack.
  7. Slide the rear brackets into the side-rail brackets. See Figure 4.
    Figure 4: Sliding the Rear Brackets to the Rear of a Four-Post Rack
    Sliding
the Rear Brackets to the Rear of a Four-Post Rack
  8. Attach the rear brackets to the rear post by using the appropriate screws for your rack. Tighten the screws.
  9. Ensure that the chassis is level by verifying that all the screws on the front of the rack are aligned with the screws at the back of the rack.

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