Protecting Your System From Esd (Electrostatic Discharge); Rack Specifications And Recommendations; Mechanical Recommendations For The Rack; Grounding The Rack - Extreme Networks ExtremeRouting SLX 9740 Hardware Installation Manual

Preparing for the Installation

Protecting Your System from ESD (Electrostatic Discharge)

Your system must be protected from static electricity or ESD. Take the following measures to ensure
optimum system performance:
•
Remove materials that can cause electrostatic generation (such as synthetic resins) from the wiring
closet.
Check the appropriateness of floor mats and flooring.
•
Connect metal chassis, conduit, and other metals to ground using dedicated grounding lines.
•
Use electrostatically safe equipment.
If you are working with pluggable interface modules, wear an ESD-preventive wrist strap and
connect the metal end to a grounded equipment rack or other source of ground.

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, space, and earthquake requirements that are described in this section.

Mechanical Recommendations for the Rack

Use equipment racks that meet the following mechanical recommendations:
•
Use an open style, 19-inch rack to facilitate easy maintenance and to provide proper ventilation.
•
Use a rack made of steel or aluminum.
•
The rack should use the universal mounting rail hole pattern that is identified in IEC Standard 297.
•
The rack should have designated earth grounding connections (typically on the base).
•
The rack must meet earthquake safety requirements equal to that of the installed chassis.
•
The mounting holes should be flush with the rails to accommodate the chassis.
•
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:
•
CAD weld appropriate wire terminals to building I-beams or earth ground rods.
•
For a DC-powered switch, use a minimum 14 AWG stranded copper wire for grounding.
AC-powered switches do not need separate chassis grounding.
Protecting Your System from ESD (Electrostatic
ExtremeRouting SLX 9740 Hardware Installation Guide
Discharge)
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