• The rack must use the universal mounting rail hole pattern that is identified in EIA Standard
RS-310C (in countries other than the US, use IEC Standard 297).
• The mounting holes should be flush with the rails to accommodate the chassis.
• The rack must be made of steel or aluminum.
• The rack must be able to easily support an additional load of approximately 50 pounds.
Grounding requirements 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. At a minimum, follow these guidelines:
• Ground equipment racks to the earth.
• 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.
Space requirements for the rack
The following space requirements ensure adequate space to easily service the server:
• Minimum distance of 48 inches in front of the rack.
• Minimum distance of 24 inches behind the rack.
• Space on either side of the equipment rack is not a concern.
Securing the rack
Attach the equipment rack to the equipment room floor with 3/8 inch lag screws or equivalent
hardware. The floor under the rack must be level within 3/16 inch. Use a floor-leveling cement
compound if necessary or bolt the racks to the floor as shown in the following figure.
Meeting site requirements
August 2015
Deploying Avaya SBCE
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