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Clearance Requirements for Airflow and Hardware Maintenance
When planning the site for installing
an EX-series switch, you must allow sufficient clearance around the
rack.
Figure 19: Clearance Requirements for Airflow and Hardware Maintenance
- 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 20 shows the airflow through
the EX 3200 switch chassis and Figure 21 shows the airflow through the EX 4200 switch chassis.
- If you are mounting a switch in a rack 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 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 and 24 in. (61 cm)
behind the rack.
Figure 20: Airflow Through
the EX 3200 Switch Chassis
Figure 21: Airflow Through the EX 4200
Switch Chassis
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