Part 3: Mount the Switch on Four Posts of a Rack
You can mount a QFX5120 switch on four posts of a 19-in. rack or an ETSI rack. This guide describes the procedure to mount the
switch on a 19-in. rack.
Mounting a QFX5120 switch requires one person to lift the switch and a second person to install the mounting screws to secure
the switch to the rack.
NOTE: The switch with one power supply installed in it weighs approximately 23.7 lb (10.75 kg). Installing the switch
requires one person to lift it and a second person to secure it to the rack.
1. Place the rack in its permanent location, allowing adequate clearance for airflow and maintenance, and secure it to the building
structure.
NOTE: While mounting multiple units on a rack, mount the heaviest unit at the bottom and mount the other units
from the bottom to the top in decreasing order of weight.
2. Place the switch on a flat, stable surface.
3. Position the front-mounting brackets along the side panels of the chassis, aligning them with the front panel.
4. Attach the brackets to the chassis by using the mounting screws. Tighten the screws (see Figure 4).
Figure 4: Attaching Brackets to the Chassis
5. Position the mounting brackets along the side panels of the chassis aligning them with the front panel side.
6. Have one person grasp both sides of the switch, lift the switch, and position it in the rack, aligning the mounting bracket holes
with the threaded holes in the rack rail. Align the bottom hole in each mounting bracket with a hole in each rail, making sure
that the chassis is level. See Figure 5.
7. Have a second person secure the switch to the rack by inserting the screws appropriate for your rack through the bracket and
the threaded holes on the rack.
Copyright © 2018, Juniper Networks, Inc.4
QFX5120 Switch Quick Start Guide
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