Clearance Requirements for Airflow and Hardware Maintenance for EX4500 Switches
When planning the site for installing an EX4500 switch, you must allow sufficient clearance around the switch.
Follow these clearance requirements:
- Allow at least 6 in. (15.2 cm) of clearance
on each side of the chassis. For the cooling system to function properly,
the airflow around the chassis must be unrestricted. See Figure 1 and Figure 2.
Figure 1: Front-to-Back Airflow Through the EX4500-40F-FB Switch Chassis

Figure 2: Back-to-Front Airflow Through the EX4500-40F-BF Switch Chassis

- 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 12 in. (30.5 cm) in front of
and 24 in. (61 cm) behind the switch. Allow at least 6 in. (15.2 cm)
of clearance on each side of the chassis. Leave adequate space at
the front and back of the switch for service personnel to remove and
install hardware components. 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. See Figure 3.
Figure 3: Clearance Requirements for Airflow and Hardware Maintenance for an EX4500 Switch Chassis

