Clearance Requirements For Airflow And Hardware Maintenance For An Ex6210; Switch; Table 45: Cabinet Requirements And Specifications For An Ex6210 Switch - Juniper EX6210 Complete Hardware Manual

Complete Hardware Guide for EX6210 Ethernet Switches

Table 45: Cabinet Requirements and Specifications for an EX6210 Switch

Cabinet Requirement
Cabinet size and clearance
Cabinet airflow requirements
Related
Documentation
100
Rack-Mounting and Cabinet-Mounting Warnings on page 274
Rack Requirements for an EX6210 Switch on page 97
Guidelines for the EX6210 Switch
The minimum cabinet size must be able to accommodate
the maximum external dimensions if the switch. The outer
edges of the mounting brackets extend the width of the
chassis to 19 in. (48.3 cm).
Large cabinets improve airflow and reduce the chance of
overheating. To accommodate a single EX6210 switch in a
two-post or four-post rack, the cabinet must be at least
14 U high (or 15 U if you install the optional power cord tray).
A U is the standard rack unit defined in Cabinets, Racks,
Panels, and Associated Equipment (document number
EIA-310–D) published by the Electronics Industry
Association ( http://www.eia.org
With adequate cooling air and airflow clearance, you can
stack three EX6210 switches in a cabinet with a two-post
or four-post rack that has at least 42 U of usable vertical
space. (45 U are required if you install the optional power
cord tray.) In all cases, the rack must meet the strength
requirements to support the weight.
The minimum total clearance inside the cabinet is 25 in.
(63.5 cm) between the inside of the front door and the
inside of the rear door.
When you mount the switch on a cabinet, ensure that
ventilation through the cabinet is sufficient to prevent
overheating. Consider the following requirements list when
planning for chassis cooling:
Ensure that the cool air supply you provide through the
cabinet adequately dissipates the thermal output of the
switch (or switches).
Ensure that the cabinet allows the chassis hot exhaust air
to exit the cabinet without recirculating into the switch. 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
"Clearance Requirements for Airflow and Hardware
Maintenance for an EX6210 Switch" on page
The switch fans exhaust hot air through the rear of the
chassis. Install the switch in the cabinet in a way that
maximizes the open space on the fan tray side of the
chassis. 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 racks allows
for the proper clearance around the switch and rack as
specified in "Clearance Requirements for Airflow and
Hardware Maintenance for an EX6210 Switch" on page
Copyright © 2014, Juniper Networks, Inc.
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