ETSI EN 300 761 V1.1.1 (1998-01)
DEN/ERM-RP08-0402
Elektromagnetna združljivost (EMC) in zadeve v zvezi z radijskim spektrom (ERM) - Avtomatska identifikacija vozil za železnico (AVI)
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Elektromagnetna združljivost (EMC) in zadeve v zvezi z radijskim spektrom (ERM) - Avtomatska identifikacija vozil za železnico (AVI)ElectroMagnetic Compatibility and Radio Spectrum Matters (ERM); Automatic Vehicle Identification (AVI) for railways45.020Železniška tehnika na splošnoRailway engineering in general33.100.01Elektromagnetna združljivost na splošnoElectromagnetic compatibility in general33.060.99Druga oprema za radijske komunikacijeOther equipment for radiocommunicationsICS:Ta slovenski standard je istoveten z:EN 300 761 V1.1.13SIST EN 300 761:en01-VHSWHPEHU-3SIST EN 300 761:SLOVENSKI
STANDARDSIST EN 300 761:2001
European Telecommunications Standards Institute EN 300 761 V1.1.1 (1998-01)European Standard (Telecommunications series)Electromagnetic compatibilityand Radio spectrum Matters (ERM);Automatic Vehicle Identification (AVI) for railwaysSIST EN 300 761:2001
EN 300 761 V1.1.1 (1998-01)2ReferenceDEN/ERM-RP08-0402 (71o00ico.PDF)KeywordsRadio, UICETSI SecretariatPostal addressF-06921 Sophia Antipolis Cedex - FRANCEOffice address650 Route des Lucioles - Sophia AntipolisValbonne - FRANCETel.: +33 4 92 94 42 00
Fax: +33 4 93 65 47 16Siret N° 348 623 562 00017 - NAF 742 CAssociation à but non lucratif enregistrée à laSous-Préfecture de Grasse (06) N° 7803/88X.400c= fr; a=atlas; p=etsi; s=secretariatInternetsecretariat@etsi.frhttp://www.etsi.frCopyright NotificationNo part may be reproduced except as authorized by written permission.The copyright and the foregoing restriction extend to reproduction in all media.© European Telecommunications Standards Institute 1998.All rights reserved.SIST EN 300 761:2001
EN 300 761 V1.1.1 (1998-01)3ContentsIntellectual Property Rights................................................................................................................................7Foreword............................................................................................................................................................7Introduction........................................................................................................................................................81Scope........................................................................................................................................................92Normative references...............................................................................................................................93Definitions, symbols and abbreviations.................................................................................................103.1Definitions.......................................................................................................................................................103.2Symbols...........................................................................................................................................................103.3Abbreviations...................................................................................................................................................104General...................................................................................................................................................114.1Presentation of equipment for testing purposes...............................................................................................114.1.1Choice of model for testing........................................................................................................................114.1.2Choice of operating frequencies.................................................................................................................114.1.3Testing of equipment without a permanent external RF port.....................................................................124.1.4Equipment with a permanent internal RF port............................................................................................124.1.5Equipment with a temporary RF port.........................................................................................................124.2Mechanical and electrical design.....................................................................................................................124.2.1General.......................................................................................................................................................124.2.2Controls......................................................................................................................................................124.2.3Test mode facility.......................................................................................................................................124.3Auxiliary test equipment..................................................................................................................................124.4Interpretation of the measurement results........................................................................................................125Test conditions, power sources and ambient temperatures....................................................................135.1Normal and extreme test conditions.................................................................................................................135.2External test power source...............................................................................................................................135.3Normal test conditions.....................................................................................................................................135.3.1Normal temperature and humidity..............................................................................................................135.3.2Normal test power source...........................................................................................................................135.3.2.1Mains voltage.......................................................................................................................................135.3.2.2Regulated lead-acid battery power sources...........................................................................................145.3.2.3Other power sources.............................................................................................................................145.4Extreme test conditions....................................................................................................................................145.4.1Extreme temperatures.................................................................................................................................145.4.1.1Procedure for tests at extreme temperatures.........................................................................................145.4.1.1.1Procedure for equipment designed for continuous transmit operation............................................145.4.1.1.2Procedure for equipment designed for intermittent transmit operation...........................................145.4.1.2Extreme temperature ranges.................................................................................................................155.4.2Extreme test source voltages......................................................................................................................155.4.2.1Mains voltage.......................................................................................................................................155.4.2.2Lead-acid battery, regulated power sources..........................................................................................155.4.2.3Power sources using other types of batteries........................................................................................155.4.2.4Other power sources.............................................................................................................................156General conditions.................................................................................................................................166.1Test signals and test modulation......................................................................................................................166.1.1Normal test signals (wanted and unwanted signals)...................................................................................166.1.1.1Signals for bit stream measurements.....................................................................................................166.1.1.2Signal for messages..............................................................................................................................166.2Modes of operation of the transmitter..............................................................................................................176.3Encoder for receiver measurements.................................................................................................................176.4Facilities for access..........................................................................................................................................176.4.1Analogue access.........................................................................................................................................176.4.2Access points for data stream measurement...............................................................................................17SIST EN 300 761:2001
EN 300 761 V1.1.1 (1998-01)46.4.3Coupling arrangements...............................................................................................................................186.4.3.1Arrangements for measurements with continuous bit streams..............................................................186.4.3.2Arrangement for measurements with messages....................................................................................186.4.4Message received indicator........................................................................................................................186.5Test sites and general arrangements for radiated measurements......................................................................186.6Artificial antenna.............................................................................................................................................196.7Test fixture.......................................................................................................................................................196.7.1Calibration..................................................................................................................................................196.7.2Mode of use................................................................................................................................................206.8Testing of host equipment and plug-in radio devices.......................................................................................206.8.1Method 1: combined equipment.................................................................................................................206.8.2Method 2: use of a test fixture and three hosts...........................................................................................207Methods of measurement and limits for interrogator transmitter parameters........................................217.1Equivalent isotropically radiated power (e.i.r.p)..............................................................................................217.1.1Definition...................................................................................................................................................217.1.2Method of measurement.............................................................................................................................217.1.3Limit...........................................................................................................................................................217.2Frequency error................................................................................................................................................227.2.1Definition...................................................................................................................................................227.2.2Method of measurement.............................................................................................................................227.2.3Limit...........................................................................................................................................................227.3Transmitter spectrum mask..............................................................................................................................227.3.1Definition...................................................................................................................................................227.3.2Method of measurement.............................................................................................................................227.3.3Limit...........................................................................................................................................................237.4Modulation index.............................................................................................................................................237.4.1Definition...................................................................................................................................................237.4.2Method of measurement.............................................................................................................................237.4.3Limit...........................................................................................................................................................247.5Eye pattern.......................................................................................................................................................247.5.1Definition...................................................................................................................................................247.5.2Method of measurement.............................................................................................................................247.5.3Limit...........................................................................................................................................................257.6Radiated spurious emissions............................................................................................................................257.6.1Definition...................................................................................................................................................257.6.2Measuring receiver.....................................................................................................................................257.6.3Method of measurement conducted spurious emission..............................................................................267.6.4Method of measurement cabinet spurious radiation...................................................................................267.6.5Method of measurement radiated spurious emission..................................................................................277.6.6Limits.........................................................................................................................................................288Methods of measurement and limits for interrogator receiver parameters............................................288.1Maximum usable sensitivity.............................................................................................................................288.1.1Definition...................................................................................................................................................288.1.2Method of measurements under normal and extreme test conditions.........................................................288.1.2.1Test arrangement for equipment with integral antenna.........................................................................298.1.2.2Test arrangement for equipment with antenna connector.....................................................................308.1.2.3Test procedure for continuous bit streams............................................................................................318.1.2.4Test procedure for messages.................................................................................................................318.1.3Limits.........................................................................................................................................................318.2Error behaviour at high wanted input signals...................................................................................................318.2.1Definition...................................................................................................................................................318.2.2Method of measurement.............................................................................................................................318.2.3Limit...........................................................................................................................................................328.3Degradation measurements..............................................................................................................................328.3.1Definition...................................................................................................................................................328.3.2General conditions.....................................................................................................................................328.3.3Co-channel rejection..................................................................................................................................338.3.3.1Definition..............................................................................................................................................338.3.3.2Method of measurement.......................................................................................................................33SIST EN 300 761:2001
EN 300 761 V1.1.1 (1998-01)58.3.3.3Limit.....................................................................................................................................................348.3.4Adjacent channel selectivity.......................................................................................................................348.3.4.1Definition..............................................................................................................................................348.3.4.2Method of measurement.......................................................................................................................348.3.4.3Limit.....................................................................................................................................................348.3.5Spurious response rejection and desensitization........................................................................................358.3.5.1Definition..............................................................................................................................................358.3.5.2Method of measurement.......................................................................................................................358.3.5.3Limits....................................................................................................................................................368.3.6Intermodulation response rejection............................................................................................................368.3.6.1Definition..............................................................................................................................................368.3.6.2Method of measurement.......................................................................................................................368.3.6.3Limits....................................................................................................................................................378.4Spurious emissions...........................................................................................................................................378.4.1Definition...................................................................................................................................................378.4.2Method of measurement - conducted spurious emissions...........................................................................378.4.3Method of measurement - cabinet radiation...............................................................................................388.4.4Method of measurement - radiated spurious components..........................................................................398.4.5Limit...........................................................................................................................................................399Method of measurements and limits for transponders...........................................................................399.1Transponder sensitivity....................................................................................................................................399.1.1Definition...................................................................................................................................................399.1.2Method of measurement.............................................................................................................................399.1.3Limit...........................................................................................................................................................409.2Transponder wake-up protection.....................................................................................................................409.2.1Definition...................................................................................................................................................409.2.2Method of measurement.............................................................................................................................419.2.3Limit...........................................................................................................................................................429.3Transponder conversion gain...........................................................................................................................429.3.1Definition...................................................................................................................................................429.3.2Method of measurement.............................................................................................................................429.3.3Limits.........................................................................................................................................................439.4Transponder spurious radiation........................................................................................................................439.4.1Definition...................................................................................................................................................439.4.2Method of measurement.............................................................................................................................439.4.3Limits.........................................................................................................................................................4310Measurement uncertainty.......................................................................................................................44Annex A (normative):Radiated measurements................................................................................45A.1Test sites and general arrangements for measurements involving the use of
radiated fields...............45A.1.1Outdoor test site...............................................................................................................................................45A.1.2Standard position.............................................................................................................................................45A.1.3Test antenna.....................................................................................................................................................46A.1.4Optional additional indoor site.........................................................................................................................46A.2Guidance on the use of radiation test sites.............................................................................................46A.2.1Measuring distance..........................................................................................................................................46A.2.2Test antenna.....................................................................................................................................................47A.2.3Substitution antenna.........................................................................................................................................47A.2.4Auxiliary cables...............................................................................................................................................47A.3Further optional alternative indoor test site using a fully anechoic RF chamber..................................48A.3.1Example of the construction of a shielded anechoic chamber..........................................................................48A.3.2Influence of parasitic reflections in anechoic chambers...................................................................................48A.3.3Calibration of the shielded RF anechoic chamber............................................................................................49SIST EN 300 761:2001
EN 300 761 V1.1.1 (1998-01)6Annex B (normative):General description of measurement methods...........................................51B.1Conducted measurements.......................................................................................................................51B.2Radiated measurements..........................................................................................................................51Annex C (normative):Receiver methods of measurements using messages..................................53C.1General...................................................................................................................................................53C.2Test signals.............................................................................................................................................53C.3Method of measurement for receiver sensitivity....................................................................................53C.4Method of measurements for receiver degradation................................................................................54Annex D (normative):Subclauses of the present document relevant for compliance with theessential requirements EC Council Directives............................................55Annex E (informative):Bibliography...................................................................................................56History..............................................................................................................................................................57SIST EN 300 761:2001
EN 300 761 V1.1.1 (1998-01)7Intellectual Property RightsIPRs essential or potentially essential to the present document may have been declared to ETSI. The informationpertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be foundin ETR 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect ofETSI standards", which is available free of charge from the ETSI Secretariat. Latest updates are available on the ETSIWeb server (http://www.etsi.fr/ipr).Pursuant to the ETSI Interim IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. Noguarantee can be given as to the existence of other IPRs not referenced in ETR 314 (or the updates onhttp://www.etsi.fr/ipr) which are, or may be, or may become, essential to the present document.ForewordThis European Standard (Telecommunications series) has been produced by ETSI Technical CommitteeElectromagnetic compatibility and Radio spectrum Matters (ERM).The present document has been produced by ETSI in response to a mandate from the European Commission issuedunder Council Directive 83/189/EEC (as amended) laying down a procedure for the provision of information in the fieldof technical standards and regulations.The present document, together with ETS 300 683, is intended to become a Harmonized Standard, the reference ofwhich will be published in the Official Journal of the European Communities referencing the Council Directive on theapproximation
...2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Elektromagnetna združljivost (EMC) in zadeve v zvezi z radijskim spektrom (ERM) - Avtomatska identifikacija vozil za železnico (AVI)ElectroMagnetic Compatibility and Radio Spectrum Matters (ERM); Automatic Vehicle Identification (AVI) for railways45.020Železniška tehnika na splošnoRailway engineering in general33.100.01Elektromagnetna združljivost na splošnoElectromagnetic compatibility in general33.060.99Druga oprema za radijske komunikacijeOther equipment for radiocommunicationsICS:Ta slovenski standard je istoveten z:EN 300 761 Version 1.1.1SIST EN 300 761:2001en01-februar-2001SIST EN 300 761:2001SLOVENSKI
STANDARDSIST EN 300 761:2001
European Telecommunications Standards Institute EN 300 761 V1.1.1 (1998-01)European Standard (Telecommunications series)Electromagnetic compatibilityand Radio spectrum Matters (ERM);Automatic Vehicle Identification (AVI) for railwaysSIST EN 300 761:2001
EN 300 761 V1.1.1 (1998-01)2ReferenceDEN/ERM-RP08-0402 (71o00ico.PDF)KeywordsRadio, UICETSI SecretariatPostal addressF-06921 Sophia Antipolis Cedex - FRANCEOffice address650 Route des Lucioles - Sophia AntipolisValbonne - FRANCETel.: +33 4 92 94 42 00
Fax: +33 4 93 65 47 16Siret N° 348 623 562 00017 - NAF 742 CAssociation à but non lucratif enregistrée à laSous-Préfecture de Grasse (06) N° 7803/88X.400c= fr; a=atlas; p=etsi; s=secretariatInternetsecretariat@etsi.frhttp://www.etsi.frCopyright NotificationNo part may be reproduced except as authorized by written permission.The copyright and the foregoing restriction extend to reproduction in all media.© European Telecommunications Standards Institute 1998.All rights reserved.SIST EN 300 761:2001
EN 300 761 V1.1.1 (1998-01)3ContentsIntellectual Property Rights................................................................................................................................7Foreword............................................................................................................................................................7Introduction........................................................................................................................................................81Scope........................................................................................................................................................92Normative references...............................................................................................................................93Definitions, symbols and abbreviations.................................................................................................103.1Definitions.......................................................................................................................................................103.2Symbols...........................................................................................................................................................103.3Abbreviations...................................................................................................................................................104General...................................................................................................................................................114.1Presentation of equipment for testing purposes...............................................................................................114.1.1Choice of model for testing........................................................................................................................114.1.2Choice of operating frequencies.................................................................................................................114.1.3Testing of equipment without a permanent external RF port.....................................................................124.1.4Equipment with a permanent internal RF port............................................................................................124.1.5Equipment with a temporary RF port.........................................................................................................124.2Mechanical and electrical design.....................................................................................................................124.2.1General.......................................................................................................................................................124.2.2Controls......................................................................................................................................................124.2.3Test mode facility.......................................................................................................................................124.3Auxiliary test equipment..................................................................................................................................124.4Interpretation of the measurement results........................................................................................................125Test conditions, power sources and ambient temperatures....................................................................135.1Normal and extreme test conditions.................................................................................................................135.2External test power source...............................................................................................................................135.3Normal test conditions.....................................................................................................................................135.3.1Normal temperature and humidity..............................................................................................................135.3.2Normal test power source...........................................................................................................................135.3.2.1Mains voltage.......................................................................................................................................135.3.2.2Regulated lead-acid battery power sources...........................................................................................145.3.2.3Other power sources.............................................................................................................................145.4Extreme test conditions....................................................................................................................................145.4.1Extreme temperatures.................................................................................................................................145.4.1.1Procedure for tests at extreme temperatures.........................................................................................145.4.1.1.1Procedure for equipment designed for continuous transmit operation............................................145.4.1.1.2Procedure for equipment designed for intermittent transmit operation...........................................145.4.1.2Extreme temperature ranges.................................................................................................................155.4.2Extreme test source voltages......................................................................................................................155.4.2.1Mains voltage.......................................................................................................................................155.4.2.2Lead-acid battery, regulated power sources..........................................................................................155.4.2.3Power sources using other types of batteries........................................................................................155.4.2.4Other power sources.............................................................................................................................156General conditions.................................................................................................................................166.1Test signals and test modulation......................................................................................................................166.1.1Normal test signals (wanted and unwanted signals)...................................................................................166.1.1.1Signals for bit stream measurements.....................................................................................................166.1.1.2Signal for messages..............................................................................................................................166.2Modes of operation of the transmitter..............................................................................................................176.3Encoder for receiver measurements.................................................................................................................176.4Facilities for access..........................................................................................................................................176.4.1Analogue access.........................................................................................................................................176.4.2Access points for data stream measurement...............................................................................................17SIST EN 300 761:2001
EN 300 761 V1.1.1 (1998-01)46.4.3Coupling arrangements...............................................................................................................................186.4.3.1Arrangements for measurements with continuous bit streams..............................................................186.4.3.2Arrangement for measurements with messages....................................................................................186.4.4Message received indicator........................................................................................................................186.5Test sites and general arrangements for radiated measurements......................................................................186.6Artificial antenna.............................................................................................................................................196.7Test fixture.......................................................................................................................................................196.7.1Calibration..................................................................................................................................................196.7.2Mode of use................................................................................................................................................206.8Testing of host equipment and plug-in radio devices.......................................................................................206.8.1Method 1: combined equipment.................................................................................................................206.8.2Method 2: use of a test fixture and three hosts...........................................................................................207Methods of measurement and limits for interrogator transmitter parameters........................................217.1Equivalent isotropically radiated power (e.i.r.p)..............................................................................................217.1.1Definition...................................................................................................................................................217.1.2Method of measurement.............................................................................................................................217.1.3Limit...........................................................................................................................................................217.2Frequency error................................................................................................................................................227.2.1Definition...................................................................................................................................................227.2.2Method of measurement.............................................................................................................................227.2.3Limit...........................................................................................................................................................227.3Transmitter spectrum mask..............................................................................................................................227.3.1Definition...................................................................................................................................................227.3.2Method of measurement.............................................................................................................................227.3.3Limit...........................................................................................................................................................237.4Modulation index.............................................................................................................................................237.4.1Definition...................................................................................................................................................237.4.2Method of measurement.............................................................................................................................237.4.3Limit...........................................................................................................................................................247.5Eye pattern.......................................................................................................................................................247.5.1Definition...................................................................................................................................................247.5.2Method of measurement.............................................................................................................................247.5.3Limit...........................................................................................................................................................257.6Radiated spurious emissions............................................................................................................................257.6.1Definition...................................................................................................................................................257.6.2Measuring receiver.....................................................................................................................................257.6.3Method of measurement conducted spurious emission..............................................................................267.6.4Method of measurement cabinet spurious radiation...................................................................................267.6.5Method of measurement radiated spurious emission..................................................................................277.6.6Limits.........................................................................................................................................................288Methods of measurement and limits for interrogator receiver parameters............................................288.1Maximum usable sensitivity.............................................................................................................................288.1.1Definition...................................................................................................................................................288.1.2Method of measurements under normal and extreme test conditions.........................................................288.1.2.1Test arrangement for equipment with integral antenna.........................................................................298.1.2.2Test arrangement for equipment with antenna connector.....................................................................308.1.2.3Test procedure for continuous bit streams............................................................................................318.1.2.4Test procedure for messages.................................................................................................................318.1.3Limits.........................................................................................................................................................318.2Error behaviour at high wanted input signals...................................................................................................318.2.1Definition...................................................................................................................................................318.2.2Method of measurement.............................................................................................................................318.2.3Limit...........................................................................................................................................................328.3Degradation measurements..............................................................................................................................328.3.1Definition...................................................................................................................................................328.3.2General conditions.....................................................................................................................................328.3.3Co-channel rejection..................................................................................................................................338.3.3.1Definition..............................................................................................................................................338.3.3.2Method of measurement.......................................................................................................................33SIST EN 300 761:2001
EN 300 761 V1.1.1 (1998-01)58.3.3.3Limit.....................................................................................................................................................348.3.4Adjacent channel selectivity.......................................................................................................................348.3.4.1Definition..............................................................................................................................................348.3.4.2Method of measurement.......................................................................................................................348.3.4.3Limit.....................................................................................................................................................348.3.5Spurious response rejection and desensitization........................................................................................358.3.5.1Definition..............................................................................................................................................358.3.5.2Method of measurement.......................................................................................................................358.3.5.3Limits....................................................................................................................................................368.3.6Intermodulation response rejection............................................................................................................368.3.6.1Definition..............................................................................................................................................368.3.6.2Method of measurement.......................................................................................................................368.3.6.3Limits....................................................................................................................................................378.4Spurious emissions...........................................................................................................................................378.4.1Definition...................................................................................................................................................378.4.2Method of measurement - conducted spurious emissions...........................................................................378.4.3Method of measurement - cabinet radiation...............................................................................................388.4.4Method of measurement - radiated spurious components..........................................................................398.4.5Limit...........................................................................................................................................................399Method of measurements and limits for transponders...........................................................................399.1Transponder sensitivity....................................................................................................................................399.1.1Definition...................................................................................................................................................399.1.2Method of measurement.............................................................................................................................399.1.3Limit...........................................................................................................................................................409.2Transponder wake-up protection.....................................................................................................................409.2.1Definition...................................................................................................................................................409.2.2Method of measurement.............................................................................................................................419.2.3Limit...........................................................................................................................................................429.3Transponder conversion gain...........................................................................................................................429.3.1Definition...................................................................................................................................................429.3.2Method of measurement.............................................................................................................................429.3.3Limits.........................................................................................................................................................439.4Transponder spurious radiation........................................................................................................................439.4.1Definition...................................................................................................................................................439.4.2Method of measurement.............................................................................................................................439.4.3Limits.........................................................................................................................................................4310Measurement uncertainty.......................................................................................................................44Annex A (normative):Radiated measurements................................................................................45A.1Test sites and general arrangements for measurements involving the use of
radiated fields...............45A.1.1Outdoor test site...............................................................................................................................................45A.1.2Standard position.............................................................................................................................................45A.1.3Test antenna.....................................................................................................................................................46A.1.4Optional additional indoor site.........................................................................................................................46A.2Guidance on the use of radiation test sites.............................................................................................46A.2.1Measuring distance..........................................................................................................................................46A.2.2Test antenna.....................................................................................................................................................47A.2.3Substitution antenna.........................................................................................................................................47A.2.4Auxiliary cables...............................................................................................................................................47A.3Further optional alternative indoor test site using a fully anechoic RF chamber..................................48A.3.1Example of the construction of a shielded anechoic chamber..........................................................................48A.3.2Influence of parasitic reflections in anechoic chambers...................................................................................48A.3.3Calibration of the shielded RF anechoic chamber............................................................................................49SIST EN 300 761:2001
EN 300 761 V1.1.1 (1998-01)6Annex B (normative):General description of measurement methods...........................................51B.1Conducted measurements.......................................................................................................................51B.2Radiated measurements..........................................................................................................................51Annex C (normative):Receiver methods of measurements using messages..................................53C.1General...................................................................................................................................................53C.2Test signals.............................................................................................................................................53C.3Method of measurement for receiver sensitivity....................................................................................53C.4Method of measurements for receiver degradation................................................................................54Annex D (normative):Subclauses of the present document relevant for compliance with theessential requirements EC Council Directives............................................55Annex E (informative):Bibliography...................................................................................................56History..............................................................................................................................................................57SIST EN 300 761:2001
EN 300 761 V1.1.1 (1998-01)7Intellectual Property RightsIPRs essential or potentially essential to the present document may have been declared to ETSI. The informationpertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be foundin ETR 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect ofETSI standards", which is available free of charge from the ETSI Secretariat. Latest updates are available on the ETSIWeb server (http://www.etsi.fr/ipr).Pursuant to the ETSI Interim IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. Noguarantee can be given as to the existence of other IPRs not referenced in ETR 314 (or the updates onhttp://www.etsi.fr/ipr) which are, or may be, or may become, essential to the present document.ForewordThis European Standard (Telecommunications series) has been produced by ETSI Technical CommitteeElectromagnetic compatibility and Radio spectrum Matters (ERM).The present document has been produced by ETSI in response to a mandate from the European Commission issuedunder Council Directive 83/189/EEC (as amended) laying down a procedure for the provision of information in the fieldof technical standards and regulations.The present document, together with ETS 300 683, is intended to become a Harmonized Standard, the reference ofwhich will be published in the Official Journal of the European Communities referencing the Council Directive on th
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