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:
Verify that the site meets the requirements described in Site Preparation Checklist for QFX5120 Switches.
Place the rack in its permanent location, allowing adequate clearance for airflow and maintenance, and secure the rack to the building structure.
Ensure that you have taken the necessary precautions to prevent electrostatic discharge (ESD) damage (see Prevention of Electrostatic Discharge Damage).
Remove the switch from the shipping carton (see Unpack the QFX5120 Switch).
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)
One person must be available to lift the switch while another person secures the switch to the rack.
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:
- Place the switch on a flat, stable surface.
- 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.
- 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).
- 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.
- Decide which end of the switch you want to place at the
front of the rack. Position the switch so that the
AIR INlabels on the fan modules are facing the cold aisle, or the
AIR OUTlabels on the fan modules are facing the hot aisle.
- 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.
- Have a second person secure the switch to the rack by
using the screws appropriate for your rack. Tighten the screws (see Figure 2).
Your switch is now installed on a four-post rack.