When allocating equipment rack space, consider the following:
Type of equipment racks recommended for the router
Number of equipment racks required to hold your current
router configuration
Future expansion
Make sure your distribution rack meets basic mechanical and
space requirements and complies with conventional standards. In the
United States, use EIA-310-D Cabinets, Racks, Panels, and Associated
Equipment, September 1992.
Mechanical Requirements
Follow these mechanical requirements for your rack:
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.
Space Requirements
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.
Proper Rack Installation
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.
