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2-12 Extreme Networks Consolidated Hardware Guide

Site Preparation

Rack Specifications and Recommendations

Racks should conform to conventional standards. In the United States, refer to EIA

Standard RS-310C: Racks, Panels, and Associated Equipment. In countries other than

the United States, refer to IEC Standard 297. In addition, verify that your rack meets the

basic mechanical and space requirements that are described in this section.

Mechanical Recommendations for the Rack

Use distribution racks that meet the following mechanical recommendations:

• Use an open style, 19-inch (48.26-cm) rack to facilitate easy maintenance and to

provide proper ventilation.

• The rack should use the universal mounting rail hole pattern that is identified in IEC

Standard 297.

• The mounting holes should be flush with the rails to accommodate the chassis.

• Use a rack made of steel or aluminum.

• Install equipment into the lower half of the rack first to avoid making the rack

top-heavy.

• The rack should support approximately 600 pounds (272 kilograms).

Protective Grounding for the Rack

Use a rack grounding kit and a ground conductor that is carried back to earth or to

another suitable building ground.

All Extreme Networks switches are designed with mounting brackets that provide solid

metal-to-metal connection to the rack. If you do not use equipment racks, you can

attach wiring terminals directly to the mounting brackets for appropriate grounding.

Alpine products have grounding terminals that are mounted on the back of the chassis.

At minimum, follow these guidelines:

• Ground equipment racks to earth ground.

— CAD weld appropriate wire terminals to building I-beams or earth ground rods.

— Use #4 copper wire.

— Drill and tap wire terminals to equipment racks.

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Extreme Networks WM-4T1i Spezifikationen Seite 56