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:
- Cabinet size
- Clearance requirements
- Cabinet airflow requirements
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 | |
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.
|
Published: 2012-03-23
