- 27 -
Guidance
and manufacturer’s declaration - electromagnetic immunity
The M270TF-XXX / M320TF-XXX is intended for use in the electromagnetic environment specified below. The
customer or the user of the M270TF-XXX / M320TF-XXX should assure that it is used in such as environment.
Immunity test
IEC 60601 test
level
Compliance level
Electromagnetic environment-guidance
Conducted RF
IEC 61000-4-6
3 Vrms
150 kHz to 80
MHz
3 Vrms
150 kHz to 80
MHz
Portable and mobile RF communications
equipment should be used no closer to any
part of the M270TF-XXX / M320TF-XXX ,
including cables, than the recommended
separation distance calculated from the
equation appliance to the frequency of the
transmitter.
Recommended separation distance:
d
d
=
[
] √
Radiated RF
IEC 61000-4-3
3 V/m
80 MHz to 2.5
GHz
3 V/m
80 MHz to 2.5
GHz
Recommended Separation Distance
d
=
[
] √
80 MHz to 800 MHz
d
=
[
] √
80 MHz to 2.5 GHz
Where
P
is the maximum output power rating of
the transmitter in watts (W) per 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 near equipment
marked with following symbol:
NOTE 1: At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE 2: These guidelines may not apply in all situations. Electromagnetic propagation is affected by
absorption and reflection from structures, objects and people.
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 M270TF-XXX /
M320TF-XXX is used exceeds the applicable RF compliance level above, the M270TF-XXX / M320TF-XXX
should be observed to verify normal operation. If abnormal performance is observed, additional measures may
be necessary, such as reorienting or relocating the M270TF-XXX / M320TF-XXX .
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
Summary of Contents for M270TF-XX
Page 47: ... 47 Dimensional Figure 27 Model 32 Model ...
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