Catalyst 6880-X Switch Hardware Installation Guide - Cisco Catalyst 6880-X Hardware Installation Manual

System Grounding
Environment
Existing commercial building is not
subject to natural environmental noise
or man-made industrial noise. This
building contains a standard office
environment. This installation has a
history of malfunction due to
electromagnetic noise.
New commercial building is not
subject to natural environmental noise
or man-made industrial noise. This
building contains a standard office
environment.
Existing commercial building is not
subject to natural environmental noise
or man-made industrial noise. This
building contains a standard office
environment.
Note In all situations, grounding practices must comply with Section 250 of the National Electric Code (NEC)
requirements or local laws and regulations. A 6 AWG grounding wire is preferred from the chassis to the
rack ground or directly to the common bonding network (CBN). The equipment rack should also be
connected to the CBN with a 6 AWG grounding wire.
In installations where FXS modules are installed, supplemental grounding is required.
Note
Always ensure that all of the modules are completely installed and that the captive installation screws are
Note
fully tightened. In addition, ensure that all the I/O cables and power cords are properly seated. These
practices are normal installation practices and must be followed in all installations.
Caution Category 5e, Category 6, and Category 6a cables can store large levels of static electricity because of the
dielectric properties of the materials used in their construction. Always ground the cables (especially in
new cable runs) to a suitable and safe earth ground before connecting them to the module.

Catalyst 6880-X Switch Hardware Installation Guide

24
Electromagnetic Noise Grounding Recommendations
Severity Level
Medium Best grounding practices must be closely
followed. Determine source and cause of
noise if possible, and mitigate as closely
as possible at the noise source or reduce
coupling from the noise source to the
victim equipment.
Low Best grounding practices should be
followed as closely as possible.
Electromagnetic noise problems are not
anticipated, but installing a best-practice
grounding system in a new building is
often the least expensive route, and the best
way to plan for the future.
Low Best grounding practices should be
followed as much as possible.
Electromagnetic noise problems are not
anticipated, but installing a best-practice
grounding system is always recommended.
Preparing for Installation
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