Specifications

A shlelded
coble
uses o metollic
wrop
oround
the wires
to reduce
the
potentiol
effects
of rodio-frequency
interference.
Rqdio ond
lelevision
interference
The equipment
described
in this
manual
generates
and
uses
radio-
frequency
energy. If it
is not
installed and
used
properly---that
is,
in strict
accordance
with Apple's
instructions-it
may
cause interference
with
radio
and television
reception.
This equipment
has been
tested
and complies
with the limits
for a Class
B
computing
device in
accordance
with the specifrcations
in
Subpart
J,
Part
L5, of FCC
rules. These
rules are
designed
to
provide
reasonable
protection against
such interference
in
a residential
installation.
However,
there is no
guarantee that
the interference
will
not
occur
in a
Particular
installation,
especially
if a
"rabbit-ear"
television
antenna
is used'
(A
rabbir
ear
antenna is the telescoping-rod
type
usually
found
on television
receivers.)
You
can determine
whether
your
comPuter
is causing
interference
by
tuming
it off. If the
interference
stops,
it
was probably
caused
by
the
computer
or its
peripheral
devices. To
further
isolate
the
problem,
disconnect the
peripheral
devices
and their
input/output
(I/O)
cables
one
at a time. If the interference
stoPs, it
was caused
by
either the
peripheral
device
or the I,/O cable.
These
devices
usually
require
shielded
I,/O
cables.
For Apple
peripheral devices,
you can obtain
the
ProPer
shielded
cable
from
your
authorized
Apple
dealer. For
non-Apple
peripheral
devices,
contact
the manufacturer
or dealer
for assistance.
lmporlont
lhis
product
wos FCC-certified
under test
conditlons
thot
included
use
of
'
shlelded cobles ond
connectors
between
system
components.
lt is
importont thot
you
use shlelded
cobles
ond connectors
to reduce
the
possibillty
of cousing
interference
to
rodio, television,
ond
other
electronic
devlces.
If
your computer does cause
interference
to radio or
television
reception,
you
can
try to correct the
interference
by using
one or
more of
the
following measures:
r Tum the television
or radio
antenna
until the
interference
stops.
r Move the computer
to one side
or the other
of the
television
or
radio.
r Move the computer
farther
away from the
television
or
radio.
r Plug the computer
into an
outlet that is
on a different
circuit
than
the
television or radio.
(Ihat
is, make certain
the
computer
and
the radio
or
television set
are on circuits
controlled
by
different
circuit
breakers
or
fuses.)
r Consider installing
a rooftop
television
antenna
with a coaxial
cable
lead-in between
the antenna
and television.
If necessary,
consult
your authorized
Apple
dealer
or an
experienced
radioltelevision
technician
for additional
suggestions.
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