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Equipment Rack Requirements
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
- 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.
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
- 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 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.
Proper Rack Installation
To confirm proper equipment rack installation, verify the following:
- Racks are installed and electrically grounded according to manufacturer
- 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.
To maintain airflow requirements, a plenum must be installed above the
router before any other piece of equipment is installed above it.
Figure 25: Airflow for the E320 Router
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