Table 84: Cabinet Requirements And Specifications For The Qfx3100 Director - Juniper QFabric QFX3000-G Hardware Documentation

Table 84: 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:
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 When you mount the QFX3100 Director device in a cabinet, ensure that ventilation through the cabinet
requirements 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.
Related
Documentation
Cabinet Requirements for a QFX3008-I Interconnect Device
Copyright © 2018, Juniper Networks, Inc.
Cabinet size
Clearance requirements
Cabinet airflow requirements
Table 84 on page 239 provides the cabinet requirements and specifications for the QFX3100
Director device.
The rack must meet the strength requirements to support the weight of the QFX3100 Director
Mounting a QFX3100 Director Device on Four Posts in a Rack or Cabinet on page 381
Mounting a QFX3100 Director Device on Two Posts in a Rack or Cabinet on page 380
You can mount a QFX3008-I Interconnect 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.
Chapter 10: Rack and Cabinet Requirements
239