Cabinet Requirements - Juniper EX4500 Hardware Manual

Rack size and strength
Rack connection to the building structure
Table 24 on page 80 provides the rack requirements and specifications.
Table 24: Rack Requirements and Specifications
Rack Requirement Guidelines
Rack type You can mount the device on a rack that provides bracket holes or hole patterns spaced at 1-U
(1.75 in. or 4.45 cm) increments and meets the size and strength requirements to support the
weight.
A U is the standard rack unit defined by the Electronic Components Industry Association
(http://www.ecianow.org).
Mounting bracket The holes in the mounting brackets are spaced at 1-U (1.75 in. or 4.45 cm), so that the device
hole spacing can be mounted in any rack that provides holes spaced at that distance.
Rack size and Ensure that the rack complies with the size and strength standards of a 19-in. rack as defined
strength by the Electronic Components Industry Association (http://www.ecianow.org).
Ensure that the rack rails are spaced widely enough to accommodate the external dimensions
of the device chassis. The outer edges of the front mounting 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 device.
Ensure that the spacing of rails and adjacent racks provides for proper clearance around the
device and rack.
Rack connection to Secure the rack to the building structure.
building structure
If your geographical area is earthquake-prone, secure the rack to the floor.
Secure the rack to the ceiling brackets as well as wall or floor brackets for maximum stability.
SEE ALSO
Rack-Mounting and Cabinet-Mounting Warnings | 283

Cabinet Requirements

You can mount the device in a cabinet that contains a 19-in. rack.
Cabinet requirements consist of:
80