Cisco UCS 6248 UP Installation Manual page 41

Installing the Cisco UCS 6200 Series Fabric Interconnect
Table 13: Proper Grounding Guidelines
Environment
Commercial building is subjected
to direct lightning strikes.
For example, some places in the
United States, such as Florida, are
subject to more lightning strikes
than other areas.
Commercial building is located in
an area where lightning storms
frequently occur but is not subject
to direct lightning strikes.
Commercial building contains a
mix of information technology
equipment and industrial
equipment, such as welding.
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.
OL-24475-03
Electromagnetic Noise Severity
Level
High
High
Medium to high
Medium
Low
Low
Cisco UCS 6200 Series Fabric Interconnect Hardware Installation Guide
Proper Grounding Practices
Grounding Recommendations
All lightning protection devices
must be installed in strict
accordance with manufacturer
recommendations. Conductors
carrying lightning current should
be spaced away from power and
data lines in accordance with
applicable recommendations and
codes. Best grounding
recommendations must be closely
followed.
Best grounding recommendations
must be closely followed.
Best grounding recommendations
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 affected
equipment. Best grounding
recommendations must be closely
followed.
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.
Electromagnetic noise problems are
not anticipated, but installing a
grounding system is always
recommended. Best grounding
recommendations should be
followed as much as possible.
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