Installation guide

Meeting Site Requirements
Consolidated "e" Series Hardware Installation Guide 25
The “e” series of switches require 3 inches (7.62 cm) on both the left and right sides of the switch (5
inches (12.7 cm) recommended) for proper airflow.
The airflow of the “e” series of switches moves from the left side of the switch to the right side of the
switch, or from the right side of the switch to the left side of the switch depending on the model.
Humidity. Operating humidity should be kept between 10 and 95% relative humidity (noncondensing).
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. 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.
— 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.