When you mount the device in a cabinet, you must
ensure that ventilation through the cabinet is sufficient to prevent
overheating. Following is a list of requirements to consider when
planning for chassis cooling:
Ensure that the cool air supply you provide through the
cabinet can adequately dissipate the thermal output of the device.
Ensure that the cabinet allows the chassis hot exhaust
air to exit from the cabinet without recirculating into the device.
An open cabinet (without a top or doors) that employs hot air exhaust
extraction from the top allows 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. For an illustration of chassis
airflow, see Figure 18.
Install the device as close as possible to
the front of the cabinet so that the cable management system just
clears the inside of the front door. This maximizes the clearance
in the rear of the cabinet for critical airflow.
Route and dress all cables to minimize the blockage of
airflow to and from the chassis.