Table of Contents
Advertisement
Guidance and manufacturer's declaration - electromagnetic immunity
This system is intended for use in the electromagnetic environment specified below. The
customer or the user of this system should assure that it is used in such an environment.
Immunity test
IEC 60601 test level
Conducted RF
3 Vrms
IEC 61000-4-6
150 kHz to 80 MHz
Radiated RF
3 V/m
IEC 61000-4-3
80 MHz to 2.5 GHz
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.
NOTE 3: Do not use cables or parts other than those intended for this product.
If cables or parts other than those intended for this product are used, performance
related to electromagnetic immunity may deteriorate.
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 this system is used exceeds the
applicable RF compliance level above, this system should be observed to verify normal
operation. If abnormal performance is observed, additional measures may be necessary, such
as re-orienting or relocating this system.
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
Compliance level
3 Vrms
3 V/m
No. 2B771-004EN*M
25-3
Electromagnetic
environment - guidance
Portable and mobile RF
communications equipment
should be used no closer to any
part of this system, including
cables, than the recommended
separation distance calculated
from the equation applicable to
the frequency of the transmitter.
Recommended separation
distance
150 kHz to 80 MHz
d
=
1
2 .
P
d
=
1
2 .
P
80 MHz to 800 MHz
d
=
2
3 .
P
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,
should be less than the
compliance level in each
b
frequency range.
Interference may occur in the
vicinity of equipment marked with
the following symbol:
a
Advertisement
Table of Contents
