SIST EN 300 761-2:2001
(Main)Electromagnetic compatibility and Radio spectrum Matters (ERM); Short Range Devices (SRD); Automatic Vehicle Identification (AVI) for railways operating in the 2,45 GHz frequency range; Part 2: Harmonized standard covering essential requirements under article 3.2 of the R&TTE Directive
- Abstract
To draft an EN to be harmonised under the R&TTE directive.
- Status
- Published
- Publication Date
- 30-Nov-2001
- Technical Committee
- RES - Radio equipment and systems
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 01-Dec-2001
- Due Date
- 01-Dec-2001
- Completion Date
- 01-Dec-2001
- Mandate
- M/284
SIST EN 300 761-2:2001 is the Slovenian adoption of ETSI EN 300 761-2 V1.1.1 for railway Automatic Vehicle Identification (AVI) short range devices in the 2.45 GHz range. It specifies the radio spectrum and compliance requirements for interrogators (Track Units, TU) and transponders so manufacturers, test laboratories and conformity assessors can evaluate equipment under article 3.2 of the R&TTE Directive.
What does SIST EN 300 761-2:2001 specify?
SIST EN 300 761-2:2001 covers a dedicated 2.45 GHz SRD microwave link for a European-wide railway AVI data communication system. It focuses on the essential requirements for radio spectrum use, not on every possible product feature.
The standard applies to fixed installed interrogators and transponders, and it notes that the system is active only during the presence of the train. It also states that the interrogator bandwidth is limited to 8 MHz shared within five channels, with data transmission only in the 2,446 GHz to 2,454 GHz ISM band and power up to 500 mW e.i.r.p.
The document is organized into Scope, References, Definitions, Technical requirements, Testing for compliance, and Interpretation of measurement results. It is part 2 of a multi-part deliverable, with Part 1 providing the technical characteristics and methods of measurement used throughout the standard.
What are the key requirements of SIST EN 300 761-2:2001?
SIST EN 300 761-2:2001 sets transmitter and receiver limits by referring back to the technical definitions and test methods in EN 300 761-1. In practice, the standard tells you what radio performance must be demonstrated and how to verify it.
Scope and operating profile
- Clause 1 limits the application to railway AVI equipment operating at 2.45 GHz and intended to work with the current UIC system, except for the interrogator bandwidth.
- The system uses in-track base station modulation based on Amplitude Shift Keying (ASK) for transmit and Frequency Shift Keying (FSK) for receive, with data rates between 192 kbit/s and 384 kbit/s.
- The manufacturer declares the operational environmental profile, and the equipment must meet the technical requirements within that declared profile. This matters because compliance is tied to the real installation and environment, not only to bench performance.
Transmitter limits
- Clause 4.1 covers equivalent isotropically radiated power (e.i.r.p.), frequency error, transmitter spectrum mask, spurious emissions and duty cycle.
- The e.i.r.p. limit applies to transmitters with integral or dedicated antennas, while the spurious emissions and duty cycle limits apply to all transmitters.
- For a product team, this means the antenna choice, frequency stability and on/off behavior must all be controlled before release.
Receiver limits
- Clause 4.2 covers co-channel rejection, adjacent band selectivity, spurious response rejection and desensitization, intermodulation response rejection, spurious radiations and transponder spurious radiation.
- Several requirements apply to all receivers, which makes receiver front-end design and unwanted emissions just as important as transmitter output.
- In practice, the receiver must stay usable in a crowded radio environment and must not create excessive unwanted radiation itself.
Compliance testing and measurement
- Clause 5 requires type tests under normal test conditions and, where stated, under extreme test conditions.
- Testing uses the methods in EN 300 761-1, including the choice of samples, the test power source, and the specific transmitter and receiver test suites.
- Clause 6 requires the test report to compare the measured value with the corresponding limit and to include measurement uncertainty for each parameter. That is important for labs because uncertainty must be documented, not ignored.
What terms does SIST EN 300 761-2:2001 define?
- Automatic Vehicle Identification (AVI) - The railway radio system used to identify vehicles and exchange data between trackside interrogators and transponders.
- Short Range Device (SRD) - A short-range radio device operating under the conditions set by this standard.
- Track Unit (TU) - The fixed installed interrogator used in the railway AVI system.
- Equivalent isotropically radiated power (e.i.r.p.) - A measure of transmitter power expressed as the radiation that an ideal isotropic antenna would produce.
- Amplitude Shift Keying (ASK) - A modulation method used by the in-track base station for transmit.
- Frequency Shift Keying (FSK) - A modulation method used by the in-track base station for receive.
- Industrial, Scientific and Medical (ISM) band - The radio band used here around 2.45 GHz for the AVI link.
- Union Internationale des Chemins de fer (UIC) - The railway body whose system specifications the equipment is intended to follow.
Who uses SIST EN 300 761-2:2001?
SIST EN 300 761-2:2001 is used by manufacturers of railway AVI interrogators and transponders, especially teams working on RF design, antennas and embedded radio performance. Test laboratories use it to plan type tests, set up measurements and write compliance reports. Quality managers, regulatory teams and buyers use it to check whether equipment is aimed at the correct railway use case and the correct 2.45 GHz spectrum conditions.
Which standards are used with SIST EN 300 761-2:2001?
| Reference | What it contributes |
|---|---|
| Directive 1999/5/EC (R&TTE Directive) | Legal basis for the harmonized standard and the article 3.2 essential requirement. |
| ETSI EN 300 761-1 (V1.2.1) | Technical characteristics, definitions, limits and measurement methods used by this part. |
| ETSI ETR 028 | Method for calculating measurement uncertainty in the test report. |
| CEPT/ERC Recommendation T/R 70-03 | Background guidance on the use of SRD spectrum. |
| Directive 98/34/EC | The procedural basis mentioned in the foreword for the standardization mandate. |
What does the SIST EN 300 761-2:2001 document contain?
The document contains transmitter requirements, receiver requirements, compliance test suites and rules for interpreting measurement results. It also includes a table linking receiver performance requirements to the test methods in EN 300 761-1.
Clause 5 gives the test conditions and the specific tests to use for e.i.r.p., frequency error, spectrum mask, spurious emissions and receiver spurious radiation. Clause 6 gives the way to judge results, including the requirement to state measurement uncertainty in the report.
The standard also includes tables for the receiver test references and for the uncertainty limits used in RF frequency, RF power, adjacent channel power and conducted or radiated emissions.
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Frequently Asked Questions
SIST EN 300 761-2:2001 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Electromagnetic compatibility and Radio spectrum Matters (ERM); Short Range Devices (SRD); Automatic Vehicle Identification (AVI) for railways operating in the 2,45 GHz frequency range; Part 2: Harmonized standard covering essential requirements under article 3.2 of the R&TTE Directive". This standard covers: To draft an EN to be harmonised under the R&TTE directive.
To draft an EN to be harmonised under the R&TTE directive.
SIST EN 300 761-2:2001 is classified under the following ICS (International Classification for Standards) categories: 33.060.99 - Other equipment for radiocommunications; 33.100.01 - Electromagnetic compatibility in general; 45.020 - Railway engineering in general. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 300 761-2:2001 is associated with the following European legislation: EU Directives/Regulations: 1999/5/EC, 2005-01-1864, TRRTP124; Standardization Mandates: M/284. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
SIST EN 300 761-2:2001 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Electromagnetic compatibility and Radio spectrum Matters (ERM); Short Range Devices (SRD); Automatic Vehicle Identification (AVI) for railways operating in the 2,45 GHz frequency range; Part 2: Harmonized standard covering essential requirements under article 3.2 of the R&TTE Directive45.020Železniška 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 300 761-2 Version 1.1.1SIST EN 300 761-2:2001en01-december-2001SIST EN 300 761-2:2001SLOVENSKI
STANDARD
ETSIEN300761-2V1.1.1(2001-06)CandidateHarmonizedEuropeanStandard(Telecommunicationsseries)ElectromagneticcompatibilityandRadiospectrumMatters(ERM);ShortRangeDevices(SRD);AutomaticVehicleIdentification(AVI)forrailwaysoperatinginthe2,45GHzfrequencyrange;Part2:Harmonizedstandardcoveringessentialrequirementsunderarticle3.2oftheR&TTEDirectiveSIST EN 300 761-2:2001
ETSIETSIEN300761-2V1.1.1(2001-06)2ReferenceREN/ERM-RP08-0411-2Keywordsradio,regulation,UICETSI650RoutedesLuciolesF-06921SophiaAntipolisCedex-FRANCETel.:+33492944200Fax:+33493654716SiretN°34862356200017-NAF742CAssociationàbutnonlucratifenregistréeàlaSous-PréfecturedeGrasse(06)N°7803/88ImportantnoticeIndividualcopiesofthepresentdocumentcanbedownloadedfrom:http://www.etsi.orgThepresentdocumentmaybemadeavailableinmorethanoneelectronicversionorinprint.Inanycaseofexistingorperceiveddifferenceincontentsbetweensuchversions,thereferenceversionisthePortableDocumentFormat(PDF).Incaseofdispute,thereferenceshallbetheprintingonETSIprintersofthePDFversionkeptonaspecificnetworkdrivewithinETSISecretariat.Usersofthepresentdocumentshouldbeawarethatthedocumentmaybesubjecttorevisionorchangeofstatus.InformationonthecurrentstatusofthisandotherETSIdocumentsisavailableathttp://www.etsi.org/tb/status/Ifyoufinderrorsinthepresentdocument,sendyourcommentto:editor@etsi.frCopyrightNotificationNopartmaybereproducedexceptasauthorizedbywrittenpermission.Thecopyrightandtheforegoingrestrictionextendtoreproductioninallmedia.©EuropeanTelecommunicationsStandardsInstitute2001.Allrightsreserved.SIST EN 300 761-2:2001
ETSIETSIEN300761-2V1.1.1(2001-06)3ContentsIntellectualPropertyRights.4Foreword.4Introduction.51Scope.72References.83Definitions,symbolsandabbreviations.83.1Definitions.83.2Symbols.83.3Abbreviations.84Technicalrequirementsspecifications.94.1Transmitterrequirements.94.1.1Equivalentisotropicallyradiatedpower.94.1.2Frequencyerror.94.1.3Transmitterspectrummask.94.1.4Spuriousemissions.94.1.5Dutycycle.94.2Receiverrequirements.94.2.1Co-channelrejection.94.2.2Adjacentbandselectivity.94.2.3Spuriousresponserejectionanddesensitization.94.2.4Intermodulationresponserejection.104.2.5Spuriousradiations.104.2.6Transponderspuriousradiation.105Testingforcompliancewithtechnicalrequirements.105.1Essentialradiotestsuites.105.1.1Environmentalconditionsfortesting.105.1.1.1Normalandextremetest-conditions.105.1.1.2Testpowersource.105.1.2Choiceofsamplesfortestsuites.105.1.3Transmittertestsuites.105.1.3.1Equivalentisotropicallyradiatedpower(e.i.r.p).105.1.3.2Frequencyerror.105.1.3.3Transmitterspectrummask.115.1.3.4Spuriousemissions.115.1.4Receivertestsuites.115.1.4.1Spuriousradiations.115.1.4.2Transponderspuriousradiation.115.2Othertestspecifications.116Interpretationofmeasurementresults.11History.13SIST EN 300 761-2:2001
ETSIETSIEN300761-2V1.1.1(2001-06)4IntellectualPropertyRightsIPRsessentialorpotentiallyessentialtothepresentdocumentmayhavebeendeclaredtoETSI.TheinformationpertainingtotheseessentialIPRs,ifany,ispubliclyavailableforETSImembersandnon-members,andcanbefoundinETSISR000314:"IntellectualPropertyRights(IPRs);Essential,orpotentiallyEssential,IPRsnotifiedtoETSIinrespectofETSIstandards",whichisavailablefromtheETSISecretariat.LatestupdatesareavailableontheETSIWebserver(http://www.etsi.org/ipr).PursuanttotheETSIIPRPolicy,noinvestigation,includingIPRsearches,hasbeencarriedoutbyETSI.NoguaranteecanbegivenastotheexistenceofotherIPRsnotreferencedinETSISR000314(ortheupdatesontheETSIWebserver)whichare,ormaybe,ormaybecome,essentialtothepresentdocument.ForewordThisCandidateHarmonizedEuropeanStandard(Telecommunicationsseries)hasbeenproducedbyETSITechnicalCommitteeElectromagneticcompatibilityandRadiospectrumMatters(ERM).ThepresentdocumenthasbeenproducedbyETSIinresponsetoamandatefromtheEuropeanCommissionissuedunderCouncilDirective98/34/EC[5]layingdownaprocedurefortheprovisionofinformationinthefieldoftechnicalstandardsandregulations.ThepresentdocumentisintendedtobecomeaHarmonizedStandard,thereferenceofwhichwillbepublishedintheOfficialJournaloftheEuropeanCommunitiesreferencingtheDirective1999/5/EC[1]oftheEuropeanParliamentandoftheCouncilof9March1999onradioequipmentandtelecommunicationsterminalequipmentandthemutualrecognitionoftheirconformity("theR&TTEDirective")[1].Thepresentdocumentispart2ofamulti-partdeliverablecoveringtheShortRangeDevices(SRD);AutomaticVehicleIdentification(AVI)forrailwaysoperatinginthe2,45GHzfrequencyrange,asidentifiedbelow:Part1:"Technicalcharacteristicsandmethodsofmeasurement";Part2:"Harmonizedstandardcoveringessentialrequirementsunderarticle3.2oftheR&TTEDirective".NationaltranspositiondatesDateofadoptionofthisEN:15June2001DateoflatestannouncementofthisEN(doa):30September2001DateoflatestpublicationofnewNationalStandardorendorsementofthisEN(dop/e):31March2002DateofwithdrawalofanyconflictingNationalStandard(dow):31March2003SIST EN 300 761-2:2001
ETSIETSIEN300761-2V1.1.1(2001-06)5IntroductionThepresentdocumentispartofasetofstandardsdesignedtofitinamodularstructuretocoverallradioandtelecommunicationsterminalequipmentundertheR&TTEDirective[1].Eachstandardisamoduleinthestructure.Themodularstructureisshowninfigure1.NewstandardforHealthforradio(ifneeded)Useofspectrum*IfneededScopedbyequipmentclassortypeScopedbyfrequencyand/orequipmenttypeDisability*Privacy*Fraud*Noharmtothenetwork*Emergency*Inter-workingviathenetwork*Inter-workingwiththenetworkNon-radioRadio(RE)Non-TTETTE3.1a/b3.23.3c3.3b3.3a3.3d3.3e3.3fRadioproductEMCProposedsinglestandardStandardsnotifiedunderEMCDirectiveStandardsnotifiedunderLVDDirective(inclacousticsafetyifneeded)Figure1:ModularstructureforthevariousstandardsusedundertheR&TTEDirectiveSIST EN 300 761-2:2001
ETSIETSIEN300761-2V1.1.1(2001-06)6Thelefthandedgeofthefigureshowsthedifferentclausesofarticle3oftheDirective.Theverticalboxesshowthestandardsund
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