AXIOMTEK MPC225-873 Series, Руководство пользователя

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MPC225-873 Series User
’s Manual
74 EMC Statement
Guidance and manufacturer’s declaration – electromagnetic immunity
The device is intended for use in the electromagnetic environments listed below, and should
only be used in such environments:
Immunity
Test IEC 60601 Test
Level Compliance
Level Electromagnetic Environment
–
Guidance
Conducted RF
IEC 61000-4-6
.
.
.
.
Radiated RF
IEC 61000-4-3
3Vrms
150kHz to 80MHz
.
.
.
.
3V/m
80MHz to 2,5GHz
3V/m
.
.
.
.
3V/m
Portable and mobile RF communications
equipment should be used no closer to any
part of the device, including cables, than
the recommended separation distance
calculated from the equation applicable to
the frequency of the transmitter.
Recommended separation distance
d = [3.5/V1]
√
P
.
.
d = [3.5/E1]
√
P
80MHz to 800MHz
.
.
d = [7/E1]
√
P
800MHz to 2,5GHz
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 metres (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 80MHz and 800MHz, 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.
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 device is used exceeds the applicable RF compliance level above, the device
should be observed to verify normal operation. If abnormal performance is observed, additional
measures may be necessary, such as reorienting or relocating the device.
b
Over the frequency range 150kHz to 80 MHz, field strengths should be less than 3V/m.