Preventing Electrostatic Discharge Damage - Cisco Nexus 5600 Series Hardware Installation Manual

Chapter 2 Installing the Cisco Nexus 5600 Series Switches
Table 2-6
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 local National Electric Code (NEC)
requirements or local laws and regulations.
Always ensure that all of the modules are completely installed and that the captive installation screws
Note
are fully tightened. In addition, ensure that all I/O cables and power cords are properly seated. These
practices are normal installation practices and must be followed in all installations.

Preventing Electrostatic Discharge Damage

Electrostatic discharge (ESD) damage, which can occur when modules or other FRUs are improperly
handled, results in intermittent or complete failures. Modules consist of printed circuit boards that are
fixed in metal carriers. Electromagnetic interference (EMI) shielding and connectors are integral
components of the carrier. Although the metal carrier helps to protect the board from ESD, always use
an ESD grounding strap when handling modules.
For preventing ESD damage, follow these guidelines:
•
Proper Grounding Guidelines (continued)
Always use an ESD wrist strap and ensure that it makes maximum contact with bare skin.
Electromagnetic Noise
Severity Level Grounding Recommendations
Medium 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 affected equipment.
Best grounding recommendations must be
closely followed.
Low Electromagnetic noise problems are not
anticipated, but installing a grounding
system in a new building is often the least
expensive route and the best way to plan for
the future. Best grounding
recommendations should be followed as
closely as possible.
Low Electromagnetic noise problems are not
anticipated, but installing a grounding
system is always recommended. Best
grounding recommendations should be
followed as much as possible.
Cisco Nexus 5600 Series Hardware Installation Guide
Grounding the Switch
2-9