Dell PowerConnect J-EX4200 Hardware Manual page 83

Chapter 5: Mounting and Clearance Requirements
the airflow around the chassis must be unrestricted. Figure 18 on page 67 shows the
airflow through the J-EX4200 switch chassis.
If you are mounting a J-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 J-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.
Figure 18: Airflow Through the J-EX4200 Switch Chassis
Related Rack Requirements for J-EX4200 Switches on page 63
Documentation
Cabinet Requirements for J-EX4200 Switches on page 64
General Site Guidelines for J-EX Series Switches on page 59
Rack-Mounting and Cabinet-Mounting Warnings for J-EX Series Switches on page 185
Cooling System and Airflow in a J-EX4200 Switch on page 24
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