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Mount a QFX5120-48YM Switch on a Two-Post Rack

 

You can mount a QFX5120 switch on four posts of a four-post 19-in. rack or in a cabinet that contains a four-post 19-in. rack, flush with the front posts, by using a four-post rack mount kit. (The remainder of this topic uses rack to mean rack or cabinet.) You can mount QFX5120-48T, QFX5120-48Y, and QFX5120-48YM switches in a recessed position inside a four-post rack by using the recessed mounting brackets. You can also mount QFX5120-48YM switches on a two-post rack by using a separately orderable two-post rack mount kit.

This topic describes the procedure to mount a QFX5120-48YM switch on a two-post rack. If you want to mount the switch flush with the front posts of a four-post rack, see Mount a QFX5120-48T, QFX5120-48Y, or QFX5120-48YM Switch Flush with the Front Posts of a Rack or Cabinet. If you want to mount the switch in a recessed position from the front posts of a four-post rack, see Mount a QFX5120-48T, QFX5120-48Y, or QFX5120-48YM Switch in a Recessed Position from the Front Posts of a Rack or Cabinet.

Before you mount a QFX5120-48YM switch on a two-post rack:

Ensure that you have the following parts and tools available:

  • Number 2 Phillips (+) screwdriver—not provided

  • Eight screws to secure the mounting brackets to the rack—not provided

  • Electrostatic discharge (ESD) grounding strap—not provided

  • Two-post rack mounting bracket for mounting the switch on a two-post rack—2 (provided with the two-post rack mount kit)

  • Flat head 4x6-mm Phillips screws for attaching the two-post rack mounting brackets to the chassis—8 (provided with the two-post rack mount kit)

Note

One person must be available to lift the switch while another person secures the switch to the rack.

Caution

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

To mount a QFX5120-48YM switch on a two-post rack:

  1. Place the switch on a flat, stable surface.
  2. Wrap and fasten one end of the ESD wrist strap around your bare wrist, and connect the other end of the strap to a site ESD point.
  3. Align the two-post rack mounting bracket (provided with the two-post rack mount kit) along the side panel of the switch (see Figure 1).
  4. Insert the flat head 4x6-mm Phillips screws for attaching the two-post rack mounting brackets (provided with the two-post rack mount kit) into the aligned holes on the chassis (see Figure 1). Tighten the screws.
    Figure 1: Attach the Two-Post Rack Mounting Brackets to a QFX5120-48YM Switch Chassis
    Attach the Two-Post Rack Mounting Brackets to a QFX5120-48YM Switch
Chassis
  5. Decide which end of the switch you want to place at the front of the rack. Position the switch so that the AIR IN labels on the fan modules are facing the cold aisle, or the AIR OUT labels on the fan modules are facing the hot aisle.
  6. Have one person grasp both sides of the switch, lift the switch, and position it in the rack, aligning the holes of the mounting brackets with the threaded holes in the posts of the rack. Align the bottom hole in both the mounting brackets with a hole in each rack rail, making sure that the chassis is level.
  7. Have a second person secure the switch to the rack by using the screws appropriate for your rack. Tighten the screws (see Figure 2).
    Figure 2: Secure the QFX5120-48YM Switch to the Two-Post Rack
    Secure the
QFX5120-48YM Switch to the Two-Post Rack

    Your switch is now installed on a four-post rack.