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HARMONISED EUROPEAN STANDARD
ElectroMagnetic Compatibility (EMC)
standard for radio equipment and services;
Part 35: Specific requirements for
Low Power Active Medical Implants (LP-AMI)
operating in the 2 483,5 MHz to 2 500 MHz bands;
Harmonised Standard covering the essential requirements
of article 3.1(b) of Directive 2014/53/EU
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2 ETSI EN 301 489-35 V2.2.1 (2019-04)
Reference
REN/ERM-EMC-377
Keywords
EMC, harmonised standard, health, radio,
regulation
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3 ETSI EN 301 489-35 V2.2.1 (2019-04)
Contents
Intellectual Property Rights . 5
Foreword . 5
Modal verbs terminology . 5
1 Scope . 6
2 References . 6
2.1 Normative references . 6
2.2 Informative references . 6
3 Definitions and abbreviations . 7
3.1 Definitions . 7
3.2 Abbreviations . 8
4 Test conditions . 8
4.1 General . 8
4.2 Arrangements for test signals . 9
4.2.0 General . 9
4.2.1 Arrangements for test signals at the input of transmitters . 9
4.2.2 Arrangements for test signals at the RF output of transmitters . 9
4.2.2.0 General . 9
4.2.2.1 ULP-AMI transmitters . 9
4.2.2.2 ULP-AMI-P transmitters . 9
4.2.3 Arrangements for test signals at the RF input of receivers . 9
4.2.4 Arrangements for test signals at the output of receivers . 9
4.2.5 Arrangements for testing transmitter and receiver together (as a system: ULP-AMI together with an
associated ULP-AMI-P) . 10
4.3 RF exclusion band of radio equipment . 10
4.3.1 General . 10
4.3.2 Exclusion band for receivers . 10
4.3.3 Exclusion band for transmitters . 11
4.4 Narrow band responses of receivers or receivers which are part of transceivers . 11
4.5 Normal test modulation . 11
5 Performance assessment . 11
5.1 General . 11
5.2 Equipment which can provide a continuous communication link . 11
5.3 Equipment which does not provide a continuous communication link . 12
5.4 Ancillary equipment . 12
5.5 Equipment classification . 12
6 Performance criteria . 12
6.1 Classification of LP-AMI and LP-AMI-P devices . 12
6.2 General performance criteria . 12
6.3 Performance criteria and table . 13
6.4 Performance criteria for continuous phenomena applied to transmitters . 14
6.5 Performance criteria for transient phenomena applied to transmitters . 14
6.6 Performance criteria for continuous phenomena applied to receivers . 14
6.7 Performance criteria for transient phenomena applied to receivers . 15
7 Applicability overview . 15
7.1 EMC emission . 15
7.1.1 General . 15
7.1.2 Special conditions . 15
7.2 Immunity . 15
7.2.1 General . 15
7.2.2 Special conditions . 16
ETSI
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4 ETSI EN 301 489-35 V2.2.1 (2019-04)
Annex A (informative): Relationship between the present document and the essential
requirements of Directive 2014/53/EU . 20
Annex B (normative): Definitions of types of LP-AMI and LP-AMI-P devices in the scope of
the present document . 22
B.1 LP-AMI and LP-AMI-P devices intended for operation in the frequency range 2 483,5 MHz to
2 500 MHz . 22
Annex C (normative): Test fixture for LP-AMI devices (Simulated man) . 23
Annex D (informative): Change history . 25
History . 26
ETSI
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5 ETSI EN 301 489-35 V2.2.1 (2019-04)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (https://ipr.etsi.org/).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Trademarks
The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners.
ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no
right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does
not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks.
Foreword
This Harmonised European Standard (EN) has been produced by ETSI Technical Committee Electromagnetic
compatibility and Radio spectrum Matters (ERM).
The present document has been prepared under the Commission's standardisation request C(2015) 5376 final [i.6] to
provide one voluntary means of conforming to the essential requirements of Directive 2014/53/EU on the harmonisation
of the laws of the Member States relating to the making available on the market of radio equipment and repealing
Directive 1999/5/EC [i.1].
Once the present document is cited in the Official Journal of the European Union under that Directive, compliance with
the normative clauses of the present document given in table A.1 confers, within the limits of the scope of the present
document, a presumption of conformity with the corresponding essential requirements of that Directive and associated
EFTA regulations.
The present document is part 35 of a multi-part deliverable. Full details of the entire series can be found in part 1 [1].
National transposition dates
Date of adoption of this EN: 12 June 2017
Date of latest announcement of this EN (doa): 31 July 2019
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 31 January 2020
Date of withdrawal of any conflicting National Standard (dow): 31 January 2021
Modal verbs terminology
In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and
"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of
provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.
ETSI
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6 ETSI EN 301 489-35 V2.2.1 (2019-04)
1 Scope
The present document together with ETSI EN 301 489-1 [1], covers the assessment of all radio transceivers associated
with Low Power Active Medical Implants (LP-AMIs) and associated Peripheral devices (LP-AMI-P) in respect of
ElectroMagnetic Compatibility (EMC).
The present document covers the EMC requirements for the radio functions of LP-AMI and associated Peripheral
devices (LP-AMI-P).
Technical specifications related to the antenna port and emissions from the enclosure port of the radio system of
LP-AMI and associated Peripheral devices (LP-AMI-P) are not included in the present document. Such technical
specifications are found in the relevant product standards for the effective use of the radio spectrum.
The present document specifies the applicable test conditions, performance assessment, and performance criteria for of
LP-AMI and associated Peripheral devices (LP-AMI-P).
Definitions of types of LP-AMIs and P-AMI-Ps covered by present document are given in annex B.
In case of differences (for instance concerning special conditions, definitions, abbreviations) between the present
document and ETSI EN 301 489-1 [1], the provisions of the present document take precedence.
The environmental classification and the emission and immunity requirements used in the present document are as
stated in the ETSI EN 301 489-1 [1], except for any special conditions included in the present document.
The present document, together with ETSI EN 301 489-1 [1], contains requirements to demonstrate an adequate level of
electromagnetic compatibility as set out in Directive 2014/53/EU [i.1].
2 References
2.1 Normative references
References are specific, identified by date of publication and/or edition number or version number. Only the cited
version applies.
Referenced documents which are not found to be publicly available in the expected location might be found at
https://docbox.etsi.org/Reference/.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are necessary for the application of the present document.
[1] ETSI EN 301 489-1 (V2.2.0) (03-2017): "ElectroMagnetic Compatibility (EMC) standard for
radio equipment and services; Part 1: Common technical requirements; Harmonised Standard
covering the essential requirements of article 3.1(b) of Directive 2014/53/EU and the essential
requirements of article 6 of Directive 2014/30/EU".
[2] CENELEC EN 61000-4-5:2006: "Electromagnetic compatibility (EMC) - Part 4-5: Testing and
measurement techniques - Surge immunity test".
[3] ETSI EN 301 559 (V2.1.1) (10-2016): "Short Range Devices (SRD); Low Power Active Medical
Implants (LP-AMI) and associated Peripherals (LP-AMI-P) operating in the frequency range
2 483,5 MHz to 2 500 MHz; Harmonised Standard covering the essential requirements of
article 3.2 of the Directive 2014/53/EU".
2.2 Informative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
ETSI
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7 ETSI EN 301 489-35 V2.2.1 (2019-04)
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are not necessary for the application of the present document but they assist the
user with regard to a particular subject area.
[i.1] Directive 2014/53/EU of the European Parliament and of the council of 16 April 2014 on the
harmonisation of the laws of the Member States relating to the making available on the market of
radio equipment and repealing Directive 1999/5/EC.
[i.2] CEPT/ERC/REC 70-03: "Relating to the use of Short Range Devices (SRD)".
[i.3] Commission Decision 2006/771/EC of 11 November 2006 on harmonization of the radio spectrum
for use by short-range devices as amended by subsequent Commission Decisions.
[i.4] http://niremf.ifac.cnr.it/.
[i.5] Camelia Gabriel: "Compilation of the dielectric properties of body tissues at RF and Microwave
Frequencies", (Physics Department, Kings College, London WC2R 2LS, UK.
[i.6] Commission Implementing Decision C(2015) 5376 final of 4.8.2015 on a standardisation request
to the European Committee for Electrotechnical Standardisation and to the European
Telecommunications Standards Institute as regards radio equipment in support of Directive
2014/53/EU of the European Parliament and of the Council.
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the terms and definitions given in ETSI EN 301 489-1 [1], ETSI
EN 301 559 [3], Directive 2014/53/EU [i.1] and the following apply:
Active Implantable Medical Device (AIMD): any active medical device (AMD) which is intended to be totally or
partially introduced, surgically or medically, into the human body or by medical intervention into a natural orifice, and
which is intended to remain after the procedure
Active Medical Device (AMD): any medical device relying for its functioning on a source of electrical energy or any
source of power
Active Medical Implant (AMI): diagnostic or therapeutic device designed to be implanted in a human body containing
a power source and a transceiver using the 2 483,5 MHz to 2 500 MHz frequency band for the purpose of providing a
two-way digital communications link
life supporting equipment: equipment whose continued normal operation is required in order to sustain life
Low Power Active Medical Implant (LP-AMI): low power radio part of any active medical device (AMD), which is
intended to be totally or partially introduced, surgically or medically, into the human body or by medical intervention
into a natural orifice, and which is intended to remain after the procedure
Low Power Active Medical Implant Peripheral (LP-AMI-P) device: the radio transmitting/receiving part of an
equipment that communicates indoor with one or more LP-AMI to establish an AMICL
NOTE: LP-AMI-P transmissions are allowed without limitation in cases of emergencies, described as "medical
implant event".
Medical Device (MD): any instrument, apparatus, appliance, material or other article, whether used alone or in
combination, together with any accessories or software for its proper functioning, intended by the manufacturer to be
used for human beings in the:
• diagnosis, prevention, monitoring, treatment or alleviation of disease or injury and for prolongation of life;
• investigation, replacement or modification of the anatomy or of a physiological process;
ETSI
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8 ETSI EN 301 489-35 V2.2.1 (2019-04)
• control of conception;
and which does not achieve its principal intended action by pharmacological, chemical, immunological or metabolic
means, but which may be assisted in its function by such means
Medical Implant Communications Link (MICL): collections of transmission that may or may not be continuous,
between co-operating medical implant devices and accessories, including programmer/controllers, transferring patient
related information in communications service
Medical Implant Communications System (MICS): specific system providing radiocommunications between an
LP-AMI and an associated LP-AMI-P
3.2 Abbreviations
For the purposes of the present document, the abbreviations given in ETSI EN 301 489-1 [1], ETSI EN 301 559 [3],
Directive 2014/53/EU [i.1] and the following apply:
AC Alternating Current
AIMD Active Implantable Medical Device
AMD Active Medical Device
AMI Active Medical Implant
AMICL Active Medical Implant Communication Link
dB decibel
dBm absolute power level referred to one milliwatt
DC Direct Current
e.i.r.p. effective isotropically radiated power
EMC ElectroMagnetic Compatibility
EUT Equipment Under Test
f operating frequency
o
ISM Industrial Scientific Medical excluding telecommunications
LP-AMI Low Power Active Medical Implant
LP-AMI-P Low Power Active Medical Implant Peripheral
MD Medical Device
MICL Medical Implant Communications Link
MICS Medical Implant Communications System
RF Radio Frequency
SRD Short Range Devices
4 Test conditions
4.1 General
For the purposes of the present document, the test conditions of the ETSI EN 301 489-1 [1], clause 4, shall apply as
appropriate. Further product related test conditions for LP-AMI and associated Peripheral devices (LP-AMI-P) are
specified in the present document.
For emission and immunity tests the normal test modulation, test arrangements, etc., as specified in the present
document, clauses 4.1 to 4.5 shall apply.
Whenever the Equipment Under Test (EUT) is provided with a detachable antenna, the EUT shall be tested with the
antenna fitted in a manner typical of normal intended use, unless otherwise specified. If the EUT can be used with
several types of antenna the test shall be repeated for each type of antenna.
LP-AMI devices (active medical implants) are designed to be implanted within a human body. These radio systems are
isolated from disturbances by the surrounding body tissue. In order to adequately assess the EMC characteristics of
active medical implants devices, the use of a simulated man is necessary. See annex C for additional details. The
provisions of annex C are intended to provide an operational environment that simulates, to the extent possible, actual
usage conditions for internal implanted devices. It is necessary to use this or another appropriate special fixture when
making emission measurements and immunity tests with radiated RF fields.
ETSI
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9 ETSI EN 301 489-35 V2.2.1 (2019-04)
4.2 Arrangements for test signals
4.2.0 General
The provisions of the ETSI EN 301 489-1 [1], clause 4.2 shall apply.
4.2.1 Arrangements for test signals at the input of transmitters
The provisions of the ETSI EN 301 489-1 [1], clause 4.2.1 shall apply with the following modifications:
• The transmitter shall be modulated with normal test modulation as specified for that type of equipment (see
clause 4.5). Where transmitters do not have a modulation input port, the internal equipment modulation shall
be used.
4.2.2 Arrangements for test signals at the RF output of transmitters
4.2.2.0 General
The provisions of the ETSI EN 301 489-1 [1], clause 4.2.2 shall apply with the following modification:
• The manufacturer may provide a suitable companion receiver or another device that can be used to set up a
communications link and/or to receive messages.
4.2.2.1 ULP-AMI transmitters
For ULP-AMI transmitters the test fixture described in annex C may be used:
• The manufacturer shall provide a suitable receiver that can be used to monitor the medical implant
communications link.
4.2.2.2 ULP-AMI-P transmitters
The provisions of the ETSI EN 301 489-1 [1], clause 4.2.2 shall apply with the following modifications:
• LP-AMI-P devices are designed to be used externally to a human body;
• the manufacturer shall provide a suitable receiver that can be used to monitor the medical implant
communications link.
4.2.3 Arrangements for test signals at the RF input of receivers
The provisions of ETSI EN 301 489-1 [1], clause 4.2.3 shall apply with the following modifications:
• the wanted RF input signal, coupled to the receiver, shall be modulated with normal test modulation as
specified for that type of equipment (clause 4.5);
• the level of the wanted RF input signal shall be 20 dB above the threshold sensitivity level of the receiver, but
in all cases it shall be below the overload characteristics of the receiver;
• the manufacturer shall provide a suitable transmitter that can be used to set up the medical implant
communications link.
4.2.4 Arrangements for test signals at the output of receivers
The provisions of ETSI EN 301 489-1 [1], clause 4.2.4 shall apply with the following modification, if appropriate:
• if direct access to the receiver output of the ULP-AMI and associated ULP-AMI-P is not possible, then the
manufacturer shall provide the method by which the receiver's functionality can be monitored during the
immunity tests.
ETSI
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10 ETSI EN 301 489-35 V2.2.1 (2019-04)
4.2.5 Arrangements for testing transmitter and receiver together
(as a system: ULP-AMI together with an associated ULP-AMI-P)
The provisions of ETSI EN 301 489-1 [1], clause 4.2.4 shall apply with the following modification, if appropriate:
• if direct access to the receiver output of the LP-AMI and associated LP-AMI-P is not possible, then the
manufacturer shall provide the method by which the receiver's functionality can be monitored during the
immunity tests.
4.3 RF exclusion band of radio equipment
4.3.1 General
The emission measurement and immunity test exclusions are referred to as "exclusion bands" and are defined in the
clauses 4.3.2 and 4.3.3 of the present document.
The frequencies on which the EUT is intended to operate, shall be excluded from conducted and radiated RF immunity
tests.
The frequencies on which the transmitter part of the EUT is intended to operate shall be excluded from emission
measurements when performed in transmit mode of operation.
During emission measurements, a frequency exclusion band does not apply for the receiver part of LP-AMIs and/or
associated LP-AMI-Ps.
4.3.2 Exclusion band for receivers
The exclusion band for receivers (including receivers that are part of transceivers), defined in table 1, is determined as
follows:
• for receivers capable of operating on 16 or more channels within the frequency band specified in table 1 and
not having an alignment range, the lower frequency of the exclusion band is the lower frequency of the used
frequency channel minus the extension value given in table 1, and the upper frequency of the exclusion band is
the upper frequency of the used frequency channel plus the extension value given in table 1. The calculated
extension value shall be based on the operating frequency;
• for receivers capable of operating on more than one frequency and having an alignment range, the lower
frequency of the exclusion band is the lower frequency of the alignment range minus the extension value given
in table 1, and the upper frequency of the exclusion band is the upper frequency of the alignment range plus
the extension value given in table 1. The calculated extension values shall be based on the centre frequency of
the alignment range;
• for wide band receivers, i.e. receivers operating in a non-channelized arrangement, the lo
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