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Electromagnetic Compatibility (EMC)
WARNINGS:
Changes or modifications to this system not expressly approved by the manufacturer may result
in increased emissions or decreased immunity performance of the equipment or system and could
cause EMC issues with this or other equipment. This system is designed and tested to comply with
applicable regulations regarding EMC and shall be installed and put into service according to the EMC
information stated as follows.
Use of portable phones or other radio frequency (RF) emitting equipment near the system may cause
unexpected or adverse operation. The equipment or system shall not be used adjacent to, or stacked
with, other equipment. If adjacent or stacked use is necessary, the equipment or system shall be
tested to verify normal operation in the configuration in which it is being used.
Guidance and manufacturer’s declaration – electromagnetic emissions
The EQUIPMENT is intended for use in the electromagnetic environment specified below. The customer or the user
of the EQUIPMENT should assure that it is used in such an environment.
Emissions Test
Compliance
Electromagnetic environment - guidance
RF emissions
CISPR 11
Group 1
The EQUIPMENT uses RF energy only for its internal function. Therefore, its RF
emissions are very low and are not likely to cause any interference in nearby
electronic equipment.
RF emissions
CISPR 11
Class B
The EQUIPMENT is suitable for use in all establishments including domestic
establishments and those directly connected to the public
low-voltage power supply network that supplies buildings used for domestic
purposes.
Guidance and manufacturer’s declaration – electromagnetic immunity
The EQUIPMENT is intended for use in the electromagnetic environment specified below. The customer or the user
of the EQUIPMENT should assure that it is used in such an environment.
Immunity tests
IEC 60601
Test level
Compliance level Electromagnetic environment - guidance
Electrostatic
discharge (ESD)
IEC 61000-4-2
± 6 kV
Contact
discharge
± 8 kV Air
discharge
± 6 kV Contact
discharge
± 8 kV Air
discharge
Floors should be wood, concrete or ceramic tile. If floors are
covered with synthetic material, the relative humidity should
be at least 30%.
Power frequency
(50/60Hz)
magnetic field
IEC 61000-4-8
3 A/m
3 A/m
Power frequency magnetic fields should be at levels charac-
teristic of a typical location in a typical
commercial or hospital environment.
Portable and mobile RF communications
equipment should be used no closer to any part of the EQUIP-
MENT, including cables, than the recommended separation
distance calculated from the equation applicable to the
frequency of the transmitter. Recommended separation
distance:
Conducted RF
IEC 61000-4-6
3 V rms
150 kHz to
80 MHz
outside
ISM bands
3 V rms
Radiated RF
IEC 61000-4-3
3 V/m
80 MHz to
2.5 GHz
3 V/m
80 MHz to 800 MHz
800 MHz to 2,5 GHz
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Where
P
is the maximum output power rating in 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.
Note 2: These guidelines may not apply in all situations. Electromagnetic propagation is
affected by absorption and reflection from structures, objects and people.
a
Fixed 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 access the electromagnetic environment due to fixed RF transmitters, and electromagnetic site survey
should be considered. If the measured field strength in the location in which the EQUIPMENT is used exceeds the
applicable RF compliance level above, the EQUIPMENT should be observed to verify normal operation. If abnormal
performance is observed, additional measures may be necessary, such as reorienting or relocating the EQUIPMENT.
b
over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
Recommended separation distances between portable and mobile
RF communications equipment and the EQUIPMENT
The EQUIPMENT is intended for use in an electromagnetic environment in which radiated RF disturbances are con-
trolled. The customer or the user of the EQUIPMENT can help prevent electromagnetic interference by maintaining a
minimum distance between portable and mobile RF communications equipment
(transmitters) and the EQUIPMENT as recommended below, according to the maximum output power
of the communications equipment.
Rated maximum
output power of
transmitter (P)
W
Separation distance according to frequency of transmitter
m
150 kHz to 80 MHz
80 MHz to 800 MHz
800 MHz to 2.5 GHz
0.01
0.1
0.1
0.2
0.1
0.4
0.4
0.7
1
1.2
1.2
2.3
10
3.8
3.8
7.3
100
12
12
23
For transmitters rated at a maximum output power not listed above, the recommended
separation distance d in meters
(m) can be estimated using the equation applicable to the frequency of the transmitter, where P is the maximum output
power rating of the transmitter in watts (W) according to the higher frequency range applies.
NOTE 1: At 80 MHz and 800 MHz, the separation distance for 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.
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