Rack Specifications And Recommendations - Extreme Networks BlackDiamond 10K Series Installation Manual

Site Preparation

Rack Specifications and Recommendations

Racks should conform to conventional standards. In the United States, use EIA Standard RS-310C:
Racks, Panels, and Associated Equipment. In countries other than the United States, use 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. BlackDiamond 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.
— Position the earth ground as close to the equipment rack as possible to maintain the shortest
wiring distance possible.
— Properly test the quality of the earth ground.
NOTE
Because building codes vary worldwide, Extreme Networks strongly recommends that you consult an
electrical contractor to ensure proper equipment grounding is in place for your specific installation.
• Ground DC power supplies to earth ground by using the grounding terminals provided.
26 Extreme Networks BlackDiamond 10K-Series Switch Installation Guide