Grounding The Rack; Providing Adequate Space For The Rack - Extreme Networks ExtremeSwitching X435 Series Hardware Installation Manual

Grounding the Rack

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The rack must meet earthquake safety requirements equal to that of the installed chassis.
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The mounting holes should be flush with the rails to accommodate the chassis.
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The rack should support approximately 270 kg (600 lb).
Grounding the Rack
The rack must be properly grounded.
Use a rack grounding kit and a ground conductor that is carried back to earth or to another suitable
building ground.
At a minimum, follow these guidelines to ground equipment racks to the earth ground:
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CAD weld appropriate wire terminals to building I-beams or earth ground rods.
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For a DC-powered switch, use a minimum 14 AWG stranded copper wire for grounding.
AC-powered switches do not need separate chassis grounding.
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Position the earth ground as close to the equipment rack as possible to maintain the shortest wiring
distance possible.
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Use a ground impedance tester or micro-ohm meter to test the quality of earth ground connection
at the chassis. This will ensure good grounding between the chassis, rack, and earth ground.
Note
Because building codes vary worldwide, Extreme Networks strongly recommends that you
consult an electrical contractor to ensure proper equipment grounding for your specific
installation.

Providing Adequate Space for the Rack

Provide enough space in front of and behind the switch so that you can service it easily.
Allow a minimum of 48 inches (122 cm) in front of the rack and 30 inches (76 cm) behind the rack.
When using a relay (two-post) rack, provide a minimum of 24 inches (61 cm) of space behind the
mounted equipment. Extra room on each side is optional.
Warning
Extreme Networks switches do not have a switch for turning power to the unit on and off. For
systems using an AC power supply, power to the switch is disconnected by removing the wall
plug from the electrical outlet.
168 ExtremeSwitching Hardware Installation Guide
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