Juniper Networks EX4200 - Manual (Page 117)

Related Topics ■ Clearance Requirements for Airflow and Hardware Maintenance for EX3200 and
EX4200 Switches on page 91
■ Wall-Mounting Warning for EX3200 and EX4200 Switches on page 225
■ Mounting an EX3200 or EX4200 Switch on a Desk or Other Level Surface on
page 117
■ Mounting an EX3200 or EX4200 Switch on a Wall on page 125
Clearance Requirements for Airflow and Hardware Maintenance for EX3200 and
EX4200 Switches
When planning the site for installing an EX3200 or EX4200 switch, you must allow
sufficient clearance around the installed switch (see Figure 27 on page 91).
Figure 27: Clearance Requirements for Airflow and Hardware Maintenance for EX3200
and EX4200 Switches
■ Allow at least 6 in. (15.2 cm) of clearance on the side between devices that have
fans or blowers installed. Allow 2.8 in. (7 cm) between the side of the chassis
and any non-heat-producing surface such as a wall. For the cooling system to
function properly, the airflow around the chassis must be unrestricted. Figure
28 on page 92 shows the airflow through the EX3200 switch chassis and Figure
29 on page 92 shows the airflow through the EX4200 switch chassis.
■ If you are mounting an EX3200 or EX4200 switch on a rack or cabinet with other
equipment, or if you are placing it on the desktop or floor near 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 EX3200 or EX4200
switch. For service personnel to remove and install hardware components, you
must leave adequate space at the front and back of the switch. 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.
Clearance Requirements for Airflow and Hardware Maintenance for EX3200 and EX4200 Switches ■ 91
Chapter 5: Mounting and Clearance Requirements