Chassis Physical Specifications For Qfx5120 Switches - Juniper QFX5120 Series Hardware Manual

The labels on the fan modules and the power supplies indicate the direction of airflow they provide
within the chassis when installed in the switch. AIR IN (AFI) labels indicate back-to-front airflow, and
AIR OUT (AFO) labels indicate front-to-back airflow.
The DC in the model number indicates that the switch model works on DC power supply. Switches that
do not have DC in their model numbers work on AC power supply.

Chassis Physical Specifications for QFX5120 Switches

The QFX5120 switch chassis is a rigid sheet-metal structure that houses all components of the switch.
Table 5 on page 31 shows the physical specifications of the QFX5120-32C switch.
Table 5: Physical Specifications of the QFX5120-32C Switch Chassis
Description
Chassis height
Chassis width
Chassis depth
Weight
Table 6 on page 31 shows the physical specifications of the QFX5120-32C switch chassis.
Table 6: Physical Specifications of the QFX5120-48Y Switch Chassis
Description
Chassis height
Chassis width
Chassis depth
Weight
Value
1.7 in. (43.25 mm)
17.26 in. (438.4 mm)
20.27 in. (515.0 mm) excluding fan and power supply handles
21.12 lbs (9.12 kg) with two power supplies and fans installed
Value
1.72 in. (4.37 cm)
17.36 in. (44.09 cm)
The outer edges of the front-mounting brackets extend the width to 19 in.
(48.2 cm)
20.48 in. (52.02 cm) excluding fan and power supply handles
23.69 lbs (10.75 kg) with two power supplies and fans installed
31