Cisco Systems N6000 Manual De Usuario
S e n d d o c u m e n t a t i o n c o m m e n t s t o n e x u s 5 k d o c s @ c i s c o . c o m .
2-9
Cisco Nexus 6000 Series Hardware Installation Guide
OL-15902-01
Chapter 2 Installing the Cisco Nexus 6000 Series Switches
Grounding the Switch
Note
In all situations, grounding practices must comply with local National Electric Code (NEC)
requirements or local laws and regulations.
requirements or local laws and regulations.
Note
Always ensure that all of the modules are completely installed and that the captive installation screws
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.
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.
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:
•
Always use an ESD wrist strap and ensure that it makes maximum contact with bare skin.
•
ESD grounding straps are available with banana plugs, metal spring clips, or alligator clips. All
chassis from the Cisco Nexus 6000 series are equipped with a banana plug connector (identified by
the ground symbol next to the connector) somewhere on the front panel. We recommend that you
use a personal ESD grounding strap equipped with a banana plug.
chassis from the Cisco Nexus 6000 series are equipped with a banana plug connector (identified by
the ground symbol next to the connector) somewhere on the front panel. We recommend that you
use a personal ESD grounding strap equipped with a banana plug.
•
If you choose to use the disposable ESD wrist strap supplied with most FRUs or an ESD wrist strap
equipped with an alligator clip, you must attach the system ground lug to the chassis in order to
provide a proper grounding point for the ESD wrist strap.
equipped with an alligator clip, you must attach the system ground lug to the chassis in order to
provide a proper grounding point for the ESD wrist strap.
Note
This system ground is also referred to as the network equipment building system (NEBS) ground.
New commercial building is not
subject to natural environmental
noise or man-made industrial
noise. This building contains a
standard office environment.
subject to natural environmental
noise or man-made industrial
noise. This building contains a
standard office environment.
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.
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.
Existing commercial building is
not subject to natural
environmental noise or
man-made industrial noise. This
building contains a standard
office environment.
not subject to natural
environmental noise or
man-made industrial noise. This
building contains a standard
office environment.
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.
anticipated, but installing a grounding
system is always recommended. Best
grounding recommendations should be
followed as much as possible.
Table 2-2
Proper Grounding Guidelines (continued)
Environment
Electromagnetic Noise
Severity Level
Severity Level
Grounding Recommendations