User manual

CHAPTER 5
Mounting and Clearance Requirements
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Rack Requirements for EX3200 and EX4200 Switches on page 93
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Cabinet Requirements for EX3200 and EX4200 Switches on page 94
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Requirements for Mounting an EX3200 or EX4200 Switch on a Desktop or
Wall on page 95
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Clearance Requirements for Airflow and Hardware Maintenance for EX3200 and
EX4200 Switches on page 96
Rack Requirements for EX3200 and EX4200 Switches
You can mount the switch on two-post racks or four-post racks.
Rack requirements consist of:
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Rack type
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Mounting bracket hole spacing
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Rack size and strength
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Rack connection to the building structure
Table 28 on page 93 provides the rack requirements and specifications for the switch.
Table 28: Rack Requirements and Specifications for the Switch
GuidelinesRack Requirement
Use a two-post rack or a four-post rack. You can mount the switch on any two-post or four-post
rack that provides bracket holes or hole patterns spaced at 1 U (1.75 in./4.45 cm) increments and
that meets the size and strength requirements to support the weight.
A U is the standard rackunit defined in Cabinets, Racks, Panels, and Associated Equipment (document
number EIA-310–D) published by the Electronics Industry Association (http://www.eia.org).
The rack must meet the strength requirements to support the weight of the chassis.
Rack type
The holes in the mounting brackets are spaced at 1 U (1.75 in. or 4.45 cm), so that the switch can
be mounted in any rack that provides holes spaced at that distance.
Mounting bracket hole
spacing
93Copyright © 2010, Juniper Networks, Inc.