Wiring - Cisco 7513 Hardware Installation And Maintenance Manual

Plant Wiring
Following
location
interference
Interference Considerations
When
between

wiring

plant
Bad
Strong
destroy the signal drivers
conducting
section
Note
consult
If
you
the plant
use high-quality twisted-pair cable
applicable
wires
If
consideration
caused
unshielded
may
you
Most
data
without
identify
environment
the
left side
ground
Distance
and
Limitations
The
length
the signal
example
distance
distances for signaling
than these
used
at
can
compensate
shown
are guidelines for
setting
new
of the
system consider
and
connector
compatibility
wires are run for
any
significant
and
the the signals on
field
can in radio interference
result
wiring practice
electromagnetic interference
and
receivers
power
surges through
Safety with
Electricity
To
and remedy
predict
strong electromagnetic
in radio
experts frequency interference
use twisted-pair cable
in
your
emit radio interference
wiring to
is
unlikely
exceed recommended
distances
the
to effect of
lightning
or other high-energy
by
lightning
conductors
destroy electronic
to
want
consult experts in
to
centers cannot resolve the infrequent
and
pulse meters other special
and
so take
resolve
precautions
with attention
special
of the
interface
processor
wire or device
antistatic
to
Interface
Specifications
of
and
your networks the distances
speed and
the transmission
standard
coaxial cable has
and
in these
rate limits
descriptions
however
you
For example recommended
the
4Mbps
without any problems
for them should
you
do
here however
so at
your
the plant wiring and
up
cabling
the distance
limitations for
described the following
as in
distance in an
electromagnetic
wires
the This
two
fact has
implications
emanating
caused
especially
as by
lightning
in the router and
can
lines and
into Review
equipment
in this
chapter
interference
RFI
with distribution
plant wiring
good
When
exceeding
one ground
with conductor
wires between
or if
pass
strike in The
vicinity
your
can
phenomena
easily
couple
you have had problems
devices
If
electrical and
suppression
surge
but potentially
catastrophic
These
equipment problems can
by
providing
properly
issues of
to electrical
surge suppression
end
of the chassis provides
chassis
See
ground
Figure
between
connections
media the
type of cabling
channel than
greater capacity
IEEE
recommended
the
are
can good
results
usually get
maximum
for V.35
rate
If understand the
electrical
you
good with
get results rates
own
risk
Site
When
at site
your
planning
signaling
electromagnetic
sections
field interference
can
occur
for the construction
from
the plant
wiring
or radio transmitters can
even
create an hazard
electrical
the safety warnings
in
EMI
need
may also to
you
of grounding
conductors
recommended
the
distances
each when
for data
signal
buildings
give
special
EMP
electromagnetic pulse
enough
into
energy
of
this sort
in the
shielding
described
problems
just
cost great deal of time
and
shielded
grounded
The ground
screw
connection
point for
connecting
1-3
the type of signal
depend on
used
transmit the signals
to
The
twisted-pair cabling
maximum
and
speeds
and
distances
at
speeds far
greater
Mbps
but
is it commonly
is
that
problems might
arise
and
distances greater than
those
Preparing for Installation
Requirements
the
of
by
the
past
to
on
For
and
2-5