• 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 43
Comments on this document? infodev@avaya.com
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