Juniper EX4550, Hardware Manual, Page: 102 / 330

Table 43 on page 80 provides the rack requirements and specifications for the switch.
Table 43: Rack Requirements and Specifications for the Switch
Guidelines Rack 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. or
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 ) .
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
• Ensure that the rack complies with the size and strength standards of 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.eia.org ) .
• Ensure that the rack rails are spaced widely enough to accommodate the external
dimensions of the switch chassis. The outer edges of the front mount brackets extend
the width of the chassis to 19 in. (48.2 cm).
•
The rack must be strong enough to support the weight of the switch.
• Ensure that the spacing of rails and adjacent racks provides for proper clearance
around the switch and rack.
Rack size and strength
• Secure the rack to the building structure.
•
If earthquakes are a possibility in your geographical area, secure the rack to the floor.
• Secure the rack to the ceiling brackets as well as wall or floor brackets for maximum
stability.
Rack connection to building structure
One pair of mounting brackets for mounting the switch on two posts of a rack is supplied
with each switch. For mounting the switch on four posts of a rack or cabinet, you can
order a four-post rack-mount kit separately.
Related
Documentation
Chassis Physical Specifications for EX4550 Switches on page 17
•
•
Clearance Requirements for Airflow and Hardware Maintenance for EX4550 Switches
on page 81
•
Mounting an EX4550 Switch on page 148
•
Rack-Mounting and Cabinet-Mounting Warnings on page 266
Cabinet Requirements for EX4550 Switches
You can mount the switch in a cabinet that contains a 19-in. rack.
Cabinet requirements consist of:
• Cabinet size
• Clearance requirements
Copyright © 2015, Juniper Networks, Inc. 80
EX4550 Switch Hardware Guide