Juniper Networks EX4200, EX3200 Mounting and Clearance Requirements, Rack Requirement Guidelines

Chapter 5

Mounting and Clearance Requirements

■Rack Requirements for EX3200 and EX4200 Switches on page 87

■Cabinet Requirements for EX3200 and EX4200 Switches on page 89

■Requirements for Mounting an EX3200 or EX4200 Switch on a Desktop or Wall on page 90

■Clearance Requirements for Airflow and Hardware Maintenance for EX3200 and EX4200 Switches on page 91

Rack Requirements for EX3200 and EX4200 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 27 on page 87 provides the rack requirements and specifications for the switch.

Table 27: Rack Requirements and Specifications for the Switch

Rack Requirement	Guidelines
Rack type	Use a four-post rack or a two-post rack. You can mount the switch on any four-post or two-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).
	With adequate cooling air and airflow clearance, you can mount 42 switches in a four-post rack or a
	two-post rack that has a height of at least 42 U. In all cases, the rack must meet the strength requirements
	to support the weight.
Mounting bracket	The holes in the mounting brackets are spaced at 1 U (1.75 in. or 4.45 cm), so that the switch can be
hole spacing	mounted in any rack that provides holes spaced at that distance.

Rack Requirements for EX3200 and EX4200 Switches ■ 87