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E120 and E320 11.3.x Hardware Guide
Space Requirements
Proper Rack Installation
98
Select from the following rack options:
Two-post rack—a freestanding enclosed cabinet with two mounting posts in the
front
Telco-type rack—two adjacent mounting posts that you must secure to the floor or
an overhead structure
Four-post rack—a freestanding open rack, either open or closed
The rack must have at least two mounting posts.
The distance between the mounting holes in the two posts must be 18.31 inches ±.063
inch, as specified in the EIA-310-D.
A fully loaded rack with three E320 Broadband Services Routers must structurally
support at least 645 pounds (293 kilograms).
An optional mounting kit is available for mid-chassis mounting. Contact your Juniper
Networks sales representative for more information.
If you use an enclosed rack for the router, ensure that there is a minimum of 3 inches of
clearance between the inner side wall and the router. This clearance space ensures
adequate air flow.
To confirm proper equipment rack installation, verify the following:
Racks are installed and electrically grounded according to manufacturer instructions.
Equipment racks are anchored to the floor and, when possible, anchored to the ceiling
as well.
Equipment rack installations comply with applicable local, state, and national codes.
CAUTION: To maintain airflow requirements for an E320 router, a plenum
must be installed above the E320 router before any other piece of equipment
is installed above it.
Copyright © 2010, Juniper Networks, Inc.
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