Cabinet Requirements; Table 39: Cabinet Requirements And Specifications - Juniper EX4500 Hardware Manual

Table 38: Rack Requirements and Specifications (continued)
Rack Requirement
Mounting bracket hole spacing
Rack size and strength
Rack connection to building structure
Related
Documentation

Cabinet Requirements

Table 39: Cabinet Requirements and Specifications

Cabinet
Requirement Guidelines
Cabinet size You can mount the device in a cabinet that contains a 19-in. rack as defined by the Electronics
Industry Association.
The minimum cabinet size must be able to accommodate the maximum external dimensions of the
device.
Cabinet clearance The outer edges of the mounting brackets extend the width of the chassis to 19 in. (48.2 cm).
The minimum total clearance inside the cabinet is 30 in. (76.2 cm) between the inside of the front
door and the inside of the rear door.
Copyright © 2017, Juniper Networks, Inc.
Guidelines
The holes in the mounting brackets are spaced at 1 U (1.75 in. or 4.45 cm), so that the
device can be mounted in any rack that provides holes spaced at that distance.
Ensure that the rack complies with the size and strength standards of a 19-in. rack as
defined by the Electronics Industry Association.
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.
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-Mounting and Cabinet-Mounting Warnings on page 262
You can mount the device in a cabinet that contains a 19-in. rack.
Cabinet requirements consist of:
Cabinet size
Clearance requirements
Cabinet airflow requirements
Table 39 on page 75 provides the cabinet requirements and specifications.
Chapter 6: Preparation Overview
75