Chapter 5
Rack and Cabinet Requirements
■ Rack Requirements for EX4500 Switches on page 49
■ Cabinet Requirements for EX4500 Switches on page 50
■ Clearance Requirements for Airflow and Hardware Maintenance for EX4500
Switches on page 52
Rack Requirements for EX4500 Switches
You can mount the switch on two-post racks or four-post racks.
Rack requirements consist of:
■ Rack type
■ Mounting bracket hole spacing
■ Rack size and strength
■ Rack connection to the building structure
Table 21 on page 49 provides the rack requirements and specifications for the switch.
Table 21: 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 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).
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
Rack Requirements for EX4500 Switches ■ 49
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