Switch; Figure 37: Airflow Through An Ex9214 Switch - Juniper EX9214 Hardware Manual

EX9214 Switch Hardware Guide
Table 41: Cabinet Requirements and Specifications (continued)
Cabinet
Requirement Guidelines
Cabinet airflow When you mount the device in a cabinet, ensure that ventilation through the cabinet is sufficient to
requirements prevent overheating.
Ensure adequate cool air supply to dissipate the thermal output of the device or devices.
Ensure that the hot air exhaust of the chassis exits the cabinet without recirculating into the device.
An open cabinet (without a top or doors) that employs hot air exhaust extraction from the top
ensures the best airflow through the chassis. If the cabinet contains a top or doors, perforations in
these elements assist with removing the hot air exhaust.
Install the device in the cabinet in a way that maximizes the open space on the side of the chassis
that has the hot air exhaust.
Route and dress all cables to minimize the blockage of airflow to and from the chassis.
Ensure that the spacing of rails and adjacent cabinets is such that there is proper clearance around
the device and cabinet.
A cabinet larger than the minimum required provides better airflow and reduces the chance of
overheating.
Related
Documentation
Clearance Requirements for Airflow and Hardware Maintenance for an EX9214 Switch
92
Rack-Mounting and Cabinet-Mounting Warnings on page 310
When planning the site for installing an EX9214 switch, you must allow sufficient clearance
around the switch.
For the cooling system to function properly, the airflow around the chassis must be
unrestricted. See Figure 37 on page

Figure 37: Airflow Through an EX9214 Switch

92.
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