Figure 28: Clearance Requirements For Airflow And Hardware Maintenance For - Juniper EX4500 Hardware Manual

Copyright © 2017, Juniper Networks, Inc.
For the cooling system to function properly, the airflow around the chassis must be
unrestricted. See Figure 26 on page 77
Figure 27: Back-to-Front Airflow Through the EX4500-40F-BF Switch
Chassis
Front
Fans (5)
Rear
If you are mounting the switch on a rack or cabinet along with other equipment, ensure
that the exhaust from other equipment does not blow into the intake vents of the
chassis.
Leave at least 6 in. (15.2 cm) clearance in the front of and behind the chassis for airflow.
Leave at least 6 in. (15.2 cm) clearance on the left of the chassis for installing the
grounding lug.
Leave at least 24 in. (61 cm) clearance in front of and behind the switch for service
personnel to remove and install hardware components. See
Figure 28: Clearance Requirements for Airflow and Hardware Maintenance
for an EX4500 Switch Chassis
24" (61 cm)
Clearance required
for maintenance
Front of chassis
17.25"
43.8 cm
6" (15.2 cm)
For airflow
and Figure 27 on page
For grounding lug
6" (15.2 cm)
21.1"
(53.6 cm)
Mounting bracket
Chapter 6: Preparation Overview
77.
Figure 28 on page 77.
24" (61 cm)
Clearance required
for maintenance
Rear of chassis
19"
(48.2 cm)
6" (15.2 cm)
For airflow
77