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Juniper EX9208 Hardware Guide

Juniper EX9208
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Cabinet requirements consist of:
•
Cabinet size
•
Clearance requirements
•
Cabinet airflow requirements
Table 40 on page 88 provides the cabinet requirements and specifications.
Table 40: Cabinet Requirements and Specifications
Guidelines
Cabinet
Requirement
•
You can mount the 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 (http://www.ecianow.org/standards-practices/standards/).
•
The minimum cabinet size must be able to accommodate the maximum external dimensions of the
device.
Cabinet size
•
The outer edges of the mounting brackets extend the width of the chassis to 19 in. (48.2 cm).
•
The minimum total clearance inside the cabinet is 30 in. (76.2 cm) between the inside of the front
door and the inside of the rear door.
Cabinet clearance
When you mount the 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 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.
Cabinet airflow
requirements
Related
Documentation
Rack-Mounting and Cabinet-Mounting Warnings on page 330•
Clearance Requirements for Airflow and Hardware Maintenance for an EX9208 Switch
When planning the site for installing an EX9208 switch, you must allow sufficient
clearance around the switch.
•
For the cooling system to function properly, the airflow around the chassis must be
unrestricted. Allow at least 6 in. (15.2 cm) of clearance between side-cooled switches.
Allow 2.8 in. (7.1 cm) between the side of the chassis and any non-heat-producing
surface such as a wall. See Figure 37 on page 89.
Copyright © 2017, Juniper Networks, Inc.88
EX9208 Switch Hardware Guide

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Juniper EX9208 Specifications

General IconGeneral
BrandJuniper
ModelEX9208
CategorySwitch
LanguageEnglish

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