Figure 52: Clearance Requirements for Airflow and Hardware Maintenance
for QFX3500 Devices
29.2 in
(74.17 cm)
g050006
Clearance required
for maintenance
24 in. (60.9 cm)
Clearance required
for maintenance
24 in. (60.9 cm)
17.4 in.
(44.2 cm)
19 in.
(48.26 cm)
Front Rear
•
For the cooling system to function properly, the airflow around the chassis must be
unrestricted. See “Cooling System and Airflow for a QFX3500 Device” on page 68 for
more information about the airflow through the chassis.
•
If you are mounting a QFX3500 device in a rack or cabinet with other equipment, ensure
that the exhaust from other equipment does not blow into the intake vents of the
chassis.
•
Leave at least 24 in. (61 cm) both in front of and behind the QFX3500 device. For
servicepersonneltoremoveand install hardware components,youmust leaveadequate
space at the front and back of the device. NEBS GR-63 recommends that you allow
at least 30 in. (76.2 cm) in front of the rack or cabinet and 24 in. (61 cm) behind the
rack or cabinet.
Related
Documentation
• Rack Requirements for a QFX3500 Device on page 96
• Cabinet Requirements for a QFX3500 Device on page 99
• General Site Guidelines on page 87
• Rack-Mounting and Cabinet-Mounting Warnings on page 179
103Copyright © 2012, Juniper Networks, Inc.
Chapter 6: Rack and Cabinet Requirements
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