Cabinet Requirements for a QFX3100 Director Device
You can mount the QFX3100 Director device in a cabinet that
contains a 19-in. rack.
Cabinet requirements consist of:
Table 1 provides the
cabinet requirements and specifications for the QFX3100 Director device.
Table 1: Cabinet Requirements
and Specifications for the QFX3100 Director Device
Cabinet Requirement | Guidelines |
|---|
Cabinet size | You can mount the QFX3100 Director device in a cabinet
that contains a 19-in. rack as defined in Cabinets, Racks,
Panels, and Associated Equipment (document number EIA-310-D)
published by the Electronics Industry Association. Note:
The rack must meet the strength requirements to support
the weight of the QFX3100 Director device. The minimum cabinet size must be able to accommodate the
maximum external dimensions of the QFX3100 Director device.
|
Cabinet clearance | The outer edges of the mounting brackets extend the width
of the chassis to 19 in. (48.3 cm). The minimum total clearance inside the cabinet is 29.2 in.
(74.17 cm) between the inside of the front door and the inside
of the rear door.
|
Cabinet airflow requirements | When you mount the QFX3100 Director device in a cabinet,
ensure that ventilation through the cabinet is sufficient to prevent
overheating. Ensure adequate cool air supply to dissipate the thermal
output of the QFX3100 Director device or devices. Ensure that the cabinet allows the chassis hot exhaust
air to exit the cabinet without recirculating into the QFX3100 Director
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. Install the QFX3100 Director device in the cabinet in
a way that maximizes the open space on the side of the chassis that
has the hot air exhaust. This maximizes the clearance for critical
airflow. 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
allows for the proper clearance around the QFX3100 Director device
and cabinet. A cabinet larger than the minimum required provides better
airflow and reduces the chance of overheating.
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