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3.3
Electromagnetic Compatibility (EMC)
Using other cables than the original ones may affect the EMC. It may also affect the compliance of limiting values assured
on delivery.
Mounting the unit close to other electrical devices may cause interference effects on both devices. A sufficient distance or
shielding between these devices shall be ensured.
The unit is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled. The
user of the unit can help to prevent electromagnetic interference by maintaining a minimum distance between portable
mobile RF communications equipment (transmitters) and the unit, according to the maximum output power of the
communications equipment, as shown below.
Output cables, intended for a direct connection to outdoor wiring, are not covered by the assured EMC characteristics of
the unit. Herefore, additional inspections might be necessary.
Voltage fluctuations/flicker emissions
IEC 61000-3-3
complies
Emissions Test
Electromagnetic Environment - Guidance
Compliance Level
Group 1
The unit uses RF energy only for is internal function.
Therefore, is RF emissions are very low and are not likely to
cause any interference in nearby electronic equipment.
Class B
Class D
The unit is suitable for other use than in domestic
establishments. The unit is suitable to be directly
connected to the public low-voltage power supply network.
RF emissions
CISPR 11
RF emissions CISPR 11
Harmonic emissions
IEC 61000-3-2
For transmitters rated at a maximum output power not listed above, the recommended separation distance (d) in meters
(m) can be determined 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 transmitter manufacturer;
- U1 is the maximum strenght of frequency fields according to IEC 61000-4-6 ist (3V RMS outside the ISM band,
6V RMS in the ISM- and amateur radio band);
- E1 is the maximum strenght of frequency fields according to IEC 61000-4-3.
Note: These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and
reflection from structures, objects and people.
0.23
800MHz to 2.7GHz
P
E
d
=
1
7
0.74
2.33
7.38
23.33
0.01
0.12
0.12
150kHz to <80MHz
transmitter max. output
in W
separation distance according to frequency of the transmitter
in m
80MHz to <800MHz
P
U
d
=
1
5
.
3
P
E
d
=
1
5
.
3
0.1
0.37
0.37
1
1.17
1.17
10
3.69
3.69
100
11.67
11.67
Содержание OR-MD Series
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