FDX3543RP
-14-
Guidance and manufacturer’s declaration – electromagnetic immunity
The FPI is intended for use in the electromagnetic environment specified below. The customer or
the user of the FPI should assure that it is used such an environment.
Immunity
test
IEC 60601
test level
Compliance
level
Electromagnetic environment –
guidance
Conducted RF
IEC61000-4-6
Radiated RF
IEC61000-4-3
3Vrms
150kHz to 80MHz
3V/m
80MHz to 2.5GHz
3Vrms
3V/m
Portable and mobile RF communications
equipment should be used no closer to
any part of the FPI, including cables, than
the recommended separation distance
calculated from the equation applicable to
the frequency of the transmitter.
Recommended separation distance
P
=
d
2
.
1
150kHz to 80MHz
P
=
d
2
.
1
80 MHz to 800 MHz
P
=
d
3
.
2
800 MHz to 2.5 GHz
Where
P
is the maximum output power
rating of the transmitter in watts (W)
according to the transmitter manufacturer
and
d
is the recommended separation
distance in meters (m).
Field strengths from fixed RF transmitters,
as determined by an electromagnetic site
survey
a
,
should be less than the
compliance level in each frequency
range
b
.
Interference may occur in the vicinity of
equipment marked with the following
symbol:
Note:
(1) At 80 MHz and 800 MHz, the higher frequency range applies.
(2) These guidelines may not apply in all situations. Electromagnetic propagation is affected by
absorption and reflection from structures, object and people.
(3) This FPI can only allow to use the designated cables and components.
If the different cables or components are used, they may deteriorate the performance of
electromagnetic immunity.
a
Field strengths from fixed transmitters, such as base stations for radio (cellular/cordless)
telephones and land mobile radios. Amateur radio, AM and FM radio broadcast and TV
broadcast cannot be predicted theoretically with accuracy. To assess the electromagnetic
environment due to fixed RF transmitters, an electromagnetic site survey should be considered. If
the measured field strength in the location in which the FPI is used exceeds the applicable RF
compliance level above, the FPI should be observed to verify normal operation. If abnormal
performance is observed, additional measures may be necessary, such as reorienting or
relocating the FPI.
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3V/m.
