SIST EN 300 761-1 V1.2.1:2003

• Abstract:

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• Status: Published
• Publication Date: 30-Nov-2003
• ICS: 33.060.99 - Other equipment for radiocommunications
• ICS: 33.100.01 - Electromagnetic compatibility in general
• ICS: 45.020 - Railway engineering in general
• Technical Committee: SS EIT - Technical Board for the electrotechnical, information technology and telecommunications fields
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Dec-2003
• Due Date: 01-Dec-2003
• Completion Date: 01-Dec-2003
• Directive: 2010-01-4558 - Pravilnik o železniških signalnovarnostnih napravah
• Ref Project: ETSI EN 300 761-1 V1.2.1 (2001-06) - 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 1: Technical characteristics and methods of measurement

Overview

SIST EN 300 761-1 V1.2.1:2003 is a European standard developed by the Slovenski inštitut za standardizacijo (SIST) and produced by the ETSI Technical Committee for Electromagnetic Compatibility and Radio Spectrum Matters (ERM). The document addresses Electromagnetic Compatibility (EMC) and radio spectrum requirements for Short Range Devices (SRD) used in Automatic Vehicle Identification (AVI) systems for railways, specifically those operating within the 2.45 GHz ISM frequency band. This standard specifies the technical characteristics and methods of measurement for both fixed and mobile railway AVI equipment, ensuring interoperable, reliable, and interference-minimized operation across European rail networks.

Key Topics

• Applicable Frequency Range: The standard covers devices operating between 2.446 GHz and 2.454 GHz within the 2.45 GHz Industrial, Scientific, and Medical (ISM) radio band.
• Maximum Radiated Power: Equipment compliant with this standard can emit up to 500 mW e.i.r.p. (Equivalent Isotropically Radiated Power) per carrier frequency.
• System Components: The standard applies to both fixed interrogators (track units) and mobile transponders installed on rail vehicles, ensuring compatibility and performance across system components.
• Modulation Techniques: AVI systems use Amplitude Shift Keying (ASK) for transmission and Frequency Shift Keying (FSK) for reception, supporting data rates between 192 kbit/s and 384 kbit/s.
• Channel Management: The system defines five dynamically allocated channels within an 8 MHz bandwidth, facilitating reliable data communications and minimizing mutual interference.
• Testing and Compliance: The document contains detailed protocols for type approval measurements in accredited laboratories, helping manufacturers and regulators assure conformity to EU Directive requirements.

Applications

SIST EN 300 761-1 V1.2.1:2003 is essential for organizations and manufacturers involved in the development, deployment, and maintenance of Automatic Vehicle Identification systems on European railways. Its practical applications include:

• Train Identification: Ensures reliable, automated detection and identification of rolling stock, enhancing logistics, operations, and safety in rail networks.
• Interoperability: Promotes compatibility among different manufacturers and across national borders, supporting the seamless movement of trains in the European rail system.
• Spectrum Efficiency: Encourages technologies that use the 2.45 GHz band efficiently, minimizing interference with other radio services and ensuring robust performance even in dense railway environments.
• Regulatory Compliance: Provides a clear framework for testing and certification, enabling smoother market access and conformity with national and EU-wide regulations (e.g., R&TTE Directive).

Related Standards

When designing or certifying railway AVI equipment, the following related standards and references are also relevant:

• CEPT/ERC Recommendation 70-03: Guidelines on the use of Short Range Devices (SRD) in Europe, referenced for frequency planning and equipment operation.
• CISPR 16-1: Specifications for radio disturbance and immunity measuring apparatus, ensuring the correct evaluation of electromagnetic compatibility.
• ETSI TR 102 028: Guidance on measurement uncertainties when testing mobile radio equipment.
• IEC 60721-3-4: Classification for environmental conditions for stationary use, relevant for railway installations.
• ITU-T Recommendation O.153: Error performance measurement at bitrates below the primary rate for data communications analysis.
• ITU-T Recommendation O.41: Guidelines for the use of psophometers in telephone-type circuit measurements.

By following SIST EN 300 761-1 V1.2.1:2003 and its related references, stakeholders can ensure safe, effective, and compliant implementation of railway AVI systems, promoting efficiency and interoperability across the European rail sector.

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 1: Technical characteristics and methods of measurement45.020Železniška 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 300 761-1 Version 1.2.1SIST EN 300 761-1 V1.2.1:2003en01-december-2003SIST EN 300 761-1 V1.2.1:2003SLOVENSKI
STANDARD
ETSIEN300761-1V1.2.1(2001-06)EuropeanStandard(Telecommunicationsseries)ElectromagneticcompatibilityandRadiospectrumMatters(ERM);ShortRangeDevices(SRD);AutomaticVehicleIdentification(AVI)forrailwaysoperatinginthe2,45GHzfrequencyrange;Part1:TechnicalcharacteristicsandmethodsofmeasurementSIST EN 300 761-1 V1.2.1:2003

ETSIETSIEN300761-1V1.2.1(2001-06)2ReferenceREN/ERM-RP08-0411-1KeywordsUIC,radioETSI650RoutedesLuciolesF-06921SophiaAntipolisCedex-FRANCETel.:[phone]Fax:[phone]SiretN°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:[e-mail]opartmaybereproducedexceptasauthorizedbywrittenpermission.Thecopyrightandtheforegoingrestrictionextendtoreproductioninallmedia.©EuropeanTelecommunicationsStandardsInstitute2001.Allrightsreserved.SIST EN 300 761-1 V1.2.1:2003

ETSIETSIEN300761-1V1.2.1(2001-06)3ContentsIntellectualPropertyRights.7Foreword.7Introduction.81Scope.92References.93Definitions,symbolsandabbreviations.103.1Definitions.103.2Symbols.103.3Abbreviations.104Generalrequirements.114.1Generalrequirements.114.1.1Equipmentclassification.114.1.2Generalperformancecriteria.114.2Presentationofequipmentfortestingpurposes.114.2.1Choiceofmodelfortesting.124.2.2Testingofequipmentwithalternativepowerlevels.124.2.3Testingofequipmentthatdoesnothaveanexternal50OhmRFconnector(integralantennaequipment).124.2.3.1Equipmentwithaninternalpermanentortemporaryantennaconnector.124.2.3.2Equipmentwithatemporaryantennaconnector.124.3Mechanicalandelectricaldesign.134.3.1General.134.3.2Controls.134.3.3Transmittershut-offfacility.134.3.4Receivermuteorsquelch.134.3.5Marking(equipmentidentification).134.3.5.1Equipmentidentification.134.3.5.2Regulatorymarking.134.4Interpretationofthemeasurementresults.135Testconditions,powersourcesandambienttemperatures.145.1Normalandextremetestconditions.145.2Testpowersource.145.2.1Externaltestpowersource.145.2.2Internaltestpowersource.145.3Normaltestconditions.145.3.1Normaltemperatureandhumidity.145.3.2Normaltestpowersource.155.3.2.1Mainsvoltage.155.3.2.2Regulatedlead-acidbatterypowersources.155.3.2.3Otherpowersources.155.4Extremetestconditions.155.4.1Extremetemperatures.155.4.1.1Procedurefortestsatextremetemperatures.155.4.1.1.1Procedureforequipmentdesignedforcontinuoustransmitoperation.155.4.1.1.2Procedureforequipmentdesignedforintermittenttransmitoperation.165.4.1.2Extremetemperatureranges.165.4.2Extremetestsourcevoltages.165.4.2.1Mainsvoltage.165.4.2.2Regulatedlead-acidbatterypowersources.165.4.2.3Powersourcesusingothertypesofbatteries.175.4.2.4Otherpowersources.176Generalconditions.17SIST EN 300 761-1 V1.2.1:2003

ETSIETSIEN300761-1V1.2.1(2001-06)46.1Testsignalsandtestmodulation.176.1.1Normaltestsignals(wantedandunwantedsignals).186.1.1.1Signalsforbitstreammeasurements.186.1.1.2Signalformessages.186.2Modesofoperationofthetransmitter.186.3Encoderforreceivermeasurements.186.4Facilitiesforaccess.196.4.1Analogueaccess.196.4.2Accesspointsfordatastreammeasurement.196.4.3Couplingarrangements.196.4.3.1Arrangementsformeasurementswithcontinuousbitstreams.196.4.3.2Arrangementformeasurementswithmessages.206.4.4Messagereceivedindicator.206.5Artificialantenna.206.6Testfixture.206.6.1Calibration.216.6.2Modeofuse.216.7Testsitesandgeneralarrangementsforradiatedmeasurements.217Methodsofmeasurementandlimitsforinterrogatortransmitterparameters.227.1Equivalentisotropicallyradiatedpower(e.i.r.p).227.1.1Definition.227.1.2Methodofmeasurement.227.1.3Limit.237.2Frequencyerror.237.2.1Definition.237.2.2Methodofmeasurement.237.2.3Limit.237.3Transmitterspectrummask.237.3.1Definition.237.3.2Methodofmeasurement.247.3.3Limit.247.4Modulationindex.257.4.1Definition.257.4.2Methodofmeasurement.257.4.3Limit.257.5Eyepattern.257.5.1Definition.257.5.2Methodofmeasurement.257.5.3Limit.267.6Radiatedspuriousemissions.267.6.1Definition.267.6.2Measuringreceiver.277.6.3Methodofmeasurementconductedspuriousemission.277.6.4Methodofmeasurementcabinetspuriousradiation.287.6.5Methodofmeasurementradiatedspuriousemission.297.6.6Limits.297.7Dutycycle.297.7.1Definitions.297.7.2Declaration.297.7.3Dutycycleclasses.308Methodsofmeasurementandlimitsforinterrogatorreceiverparameters.308.1Maximumusablesensitivity.308.1.1Definition.308.1.2Methodofmeasurementsundernormalandextremetestconditions.308.1.2.1Testarrangementforequipmentwithintegralantenna.318.1.2.2Testarrangementforequipmentwithantennaconnector.328.1.2.3Testprocedureforcontinuousbitstreams.338.1.2.4Testprocedureformessages.338.1.3Limits.338.2Errorbehaviourathighwantedinputsignals.33SIST EN 300 761-1 V1.2.1:2003

ETSIETSIEN300761-1V1.2.1(2001-06)58.2.1Definition.338.2.2Methodofmeasurement.338.2.3Limit.348.3Degradationmeasurements.348.3.1Definition.348.3.2Generalconditions.348.3.3Co-channelrejection.358.3.3.1Definition.358.3.3.2Methodofmeasurement.358.3.3.3Limit.358.3.4Adjacentchannelselectivity.358.3.4.1Definition.358.3.4.2Methodofmeasurement.368.3.4.3Limit.368.3.5Spuriousresponserejectionanddesensitization.368.3.5.1Definition.368.3.5.2Methodofmeasurement.378.3.5.3Limits.378.3.6Intermodulationresponserejection.388.3.6.1Definition.388.3.6.2Methodofmeasurement.388.3.6.3Limits.388.4Spuriousemissions.398.4.1Definition.398.4.2Methodofmeasurement-conductedspuriousemissions.398.4.3Methodofmeasurement-cabinetradiation.398.4.4Methodofmeasurement-radiatedspuriouscomponents.408.4.5Limit.409Methodofmeasurementsandlimitsfortransponders.419.1Transpondersensitivity.419.1.1Definition.419.1.2Methodofmeasurement.419.1.3Limit.429.2Transponderwake-upprotection.429.2.1Definition.429.2.2Methodofmeasurement.429.2.3Limit.439.3Transponderconversiongain.439.3.1Definition.439.3.2Methodofmeasurement.449.3.3Limits.449.4Transponderspuriousradiation.449.4.1Definition.449.4.2Methodofmeasurement.449.4.3Limits.4510Measurementuncertainty.45AnnexA(normative):Radiatedmeasurements.46A.1Testsitesandgeneralarrangementsformeasurementsinvolvingtheuseofradiatedfields.46A.1.1Outdoortestsite.46A.1.1.1Standardposition.46A.1.2Testantenna.47A.1.3Substitutionantenna.47A.1.4Optionaladditionalindoorsite.47A.2Guidanceontheuseofradiationtestsites.48A.2.1Measuringdistance.48A.2.2Testantenna.48A.2.3Substitutionantenna.49A.2.4Auxiliarycables.49SIST EN 300 761-1 V1.2.1:2003

ETSIETSIEN300761-1V1.2.1(2001-06)6A.3FurtheroptionalalternativeindoortestsiteusingafullyanechoicRFchamber.49A.3.1Exampleoftheconstructionofashieldedanechoicchamber.49A.3.2Influenceofparasiticreflectionsinanechoicchambers.50A.3.3CalibrationoftheshieldedRFanechoicchamber.50AnnexB(normative):Generaldescriptionofmeasurementmethods.52B.1Conductedmeasurements.52B.2Radiatedmeasurements.52AnnexC(normative):Receivermethodsofmeasurementsusingmessages.54C.1General.54C.2Testsignals.54C.3Methodofmeasurementforreceiversensitivity.54C.4Methodofmeasurementsforreceiverdegradation.55AnnexD(informative):ClausesofthepresentdocumentrelevantforcompliancewiththeessentialrequirementsECCouncilDirectives.56D.1Compliancewith1999/5/EC(R&TTEDirective)article3.3e.56AnnexE(informative):Bibliography.57History.58SIST EN 300 761-1 V1.2.1:2003

ETSIETSIEN300761-1V1.2.1(2001-06)7IntellectualPropertyRightsIPRsessentialorpotentiallyessentialtothepresentdocumentmayhavebeendeclaredtoETSI.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.ForewordThisEuropeanStandard(Telecommunicationsseries)hasbeenproducedbyETSITechnicalCommitteeElectromagneticcompatibilityandRadiospectrumMatters(ERM).FornonEUcountriesthepresentdocumentmaybeusedforregulatory(TypeapprovalorconformitytotheR&TTEDirective)purposes.Thepresentdocumentispart1ofamulti-partdeliverablecoveringtheShortRangeDevices(SRD);AutomaticVehicleIdentification(AVI)forrailwaysoperatinginthe2,45GHzfrequencyrange,asidentifiedbelow:Part1:"Technicalcharacteristicsandmethodsofmeasurement";Part2:"Harmonizedstandardcoveringessentialrequirementsunderarticle3.2oftheR&TTEDirective".Clauses1and3giveageneraldescriptionofthetypesofequipmentcoveredbythepresentdocumentandthedefinitionsandabbreviationsused.Clause4givesgeneralrequirementinorderthattypetestsmaybecarriedoutandanymarkingsontheequipmenttobeprovidedbythemanufacturer.Clauses5and6specifythetestconditions.Clauses7and8specifythespectrumutilizationparameterswhicharerequiredtobemeasured.Thesearemaximumlimitswhichhavebeenchosentominimizeharmfulinterferencetootherequipmentorservices.Theclausesprovidedetailsonhowtheequipmentshouldbetestedandtheconditionswhichshouldbeapplied.Clause9specifiesthelimitsoftheparameterswhicharerequiredtobetestedfortransponders.Detailsonthetestmethodsforthetranspondersarealsospecified.Clause10givesmaximummeasurementuncertaintyvalues.AnnexAprovidesnormativespecificationsconcerningradiatedmeasurements.AnnexBprovidesnormativedescriptionofmeasurementmethods.AnnexCprovidesnormativedescriptionofanalternativemeasurementmethodforreceivers.NationaltranspositiondatesDateofadoptionofthisEN:15June2001DateoflatestannouncementofthisEN(doa):30September2001DateoflatestpublicationofnewNationalStandardorendorsementofthisEN(dop/e):31March2002DateofwithdrawalofanyconflictingNationalStandard(dow):31March2002SIST EN 300 761-1 V1.2.1:2003

ETSIETSIEN300761-1V1.2.1(2001-06)8IntroductionThepresentdocumentwasdraftedontheassumptionthattypetestmeasurements,performedinanaccreditedtestlaboratory,willbeacceptedbythevariousnationalregulatoryauthoritiesinordertogranttypeapprovalorconformitytotheR&TTEDirective,providedthenationalregulatoryrequirementsaremet.ThisisincompliancewithCEPT/ERCRecommendation70-03[1]andCEPT/ERCRecommendation01-06(seeBibliography).Thepresentdocumentspecifiestherequirementsforadedicated2,45GHzshortrangemicrowavelinkintendedforaEuropeanwidedatacommunicationsystemforRailwayapplications,AutomaticVehicleIdentification(AVI).Thein-trackbasestation(interrogator)transmitandreceivemodulationsareacombinationofAmplitudeShiftKeying(ASK)andFrequencyShiftKeying(FSK)respectively.Thepresentdocumentsupportsthenecessarytransmitterandreceiverdataratesbetween192kbit/sand384kbit/saccordingtothetypeoftransaction.Thesystemcomprisesfivechannelswithdynamicchannelallocation,withinan8MHzbandwidth.Themaximumradiatedequivalentisotropicallyradiatedpower(e.i.r.p)ateachcarrierfrequencyis500mW(+27dBm).Inordertopermitthegreatestfreedomofdesignofequipment,whilstprotectingotherradioservicesfrominterference,abalanceisrequiredbetweenthepermittedrangeoffrequenciesonwhichtheequipmentmaybeused,anditsfrequencystabilityandmodulationcharacteristics.Thepresentdocumentspecifiestheoperationalfrequenciesandsystembandwidths;theseparametersarecoveredbyannex4ofCEPT/ERCRecommendation70-03[1].SIST EN 300 761-1 V1.2.1:2003

ETSIETSIEN300761-1V1.2.1(2001-06)91ScopeThepresentdocumentappliestoadedicated2,45GHzShortRangeDevice(SRD)microwavelinkintendedforaEuropeanwidedatacommunicationsystemforRailwayapplications,AutomaticVehicleIdentification(AVI).whichfulfiltherelevantUnionInternationaledesCheminsdefer(UIC)specifications(seeBibliography)andareinteroperablewiththecurrentUICsystemexceptfortheinterrogator(TrackUnits(TU))bandwidth.ThepresentdocumentcontainsthetechnicalcharacteristicsforradioequipmentandisreferencedbyCEPT/ERCRecommendationT/R70-03[1].TheInterrogatorbandwidthislimitedto8MHzsharedwithinfivechannels:-withaRadioFrequency(RF)outputconnectionandspecifiedantennaorwithanintegralantenna;-fordatatransmissiononly;-operatingonradiofrequenciesinthe2,446GHzto2,454GHzIndustrial,ScientificandMedical(ISM)band,withpowerlevelsupto500mWe.i.r.p.ThepresentdocumentisaproductstandardcoveringvariousRailwayapplicationswherethedatatransmissionofthesystemwillbeactiveonlyduringthepresenceofthetrain.Thepresentdocumentcoversfixedinstalledinterrogators(TUs)andtransponders(mobilestations).Forcertainmeasurementsthetranspondersaremeasuredtogetherwiththewholeinterrogatingsystem.Thein-trackbasestation(interrogator)transmitandreceivemodulationsareacombinationofAmplitudeShiftKeying(ASK)andFrequencyShiftKeying(FSK)respectively.Thepresentdocumentsupportsthenecessarytransmitterandreceiverdataratesbetween192kbit/sand384kbit/saccordingtothetypeoftransaction.Itcoverstheminimumcharacteristicsconsiderednecessaryinordertomakethebestuseoftheavailablefrequencies.Itdoesnotnecessarilyincludeallthecharacteristicswhichmayberequiredbyauser,nordoesitnecessarilyrepresenttheoptimumperformanceachievable.Thepresentdocumentincludesspecificationsformethodsofmeasurementforequipmentfittedwithantennasocketsand/orintegralantenna.AdditionalstandardsorspecificationsmayberequiredforequipmentsuchasthatintendedforconnectiontothePublicSwitchedTelephoneNetwork(PSTN)orothersystems.2ReferencesThefollowingdocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsofthepresentdocument.• Referencesareeitherspecific(identifiedbydateofpublicationand/oreditionnumberorversionnumber)ornon-specific.• Foraspecificreference,subsequentrevisionsdonotapply.• Foranon-specificreference,thelatestversionapplies.[1]CEPT/ERCRecommendation70-03(2001):"RelatingtotheuseofShortRangeDevices(SRD)".[2]CISPR16-1:"Specificationforradiodisturbanceandimmunitymeasuringapparatusandmethods;Part1:Radiodisturbanceandimmunitymeasuringapparatus".[3]ITU-TRecommendationO.153:"Basicparametersforthemeasurementoferrorperformanceatbitratesbelowtheprimaryrate".SIST EN 300 761-1 V1.2.1:2003

ETSIETSIEN300761-1V1.2.1(2001-06)10[4]ETSIETR028:"RadioEquipmentandSystems(RES);Uncertaintiesinthemeasurementofmobileradioequipmentcharacteristics".[5]IEC60721-3-4(1995):"Classificationofenvironmentalconditions-Part3:Classificationofgroupsofenvironmentalparametersandtheirseverities-Section4:Stationaryuseatnon-weatherprotectedlocations".[6]ITU-TRecommendationO.41:"Psophometerforuseontelephone-typecircuits"3Definitions,symbolsandabbreviations3.1DefinitionsForthepurposesofthepresentdocument,thefollowingtermsanddefinitionsapply:assignedfrequencyband:frequencybandwithinwhichthedeviceisauthorizedtooperateintegralantenna:permanentfixedantenna,whichmaybebuilt-in,designedasanindispensablepartoftheequipmentconductedmeasurements:measurementswhicharemadeusingadirectconnectiontotheequipmentundertestidentificationsystem:equipmentconsistingofatransmitter(s),receiver(s)(oracombinationofthetwo)andanantenna(s)toidentifyobjectsbymeansofatransponderinterrogator:equipmentintendedforuseinafixedlocation(FixedStation(FS))manufacturer:manufacturermeansthemanufacturerorhisofficialrepresentativeoperatingfrequencyrange:rangeofoperatingfrequenciesoverwhichtheequipmentcanbeadjustedthroughswitching,tuningorreprogrammingportableequipment:equipmentintendedtobecarried,attachedorimplantedradiatedmeasurements:measurementswhichinvolvetheabsolutemeasurementofaradiatedfieldtransponder:devicenormallyfixedinavehiclewhichrespondstoaninterrogatingsignal3.2SymbolsForthepurposesofthepresentdocument,thefollowingsymbolsapply:λwavelengthEfieldstrengthEoreferencefieldstrength(seeannexB)f0frequencyofoperationRdistance(seeannexB)Roreferencedistance(seeannexB)3.3AbbreviationsForthepurposesofthepresentdocument,thefollowingabbreviationsapply:ABAllocatedBandASKAmplitudeShiftKeyingAVIAutomaticVehicleIdentificationCGConversionGaindBigainrelativetoanisotropicantennadBmdBrelativeto1mWe.i.r.pequivalentisotropicallyradiatedpowerFSFixedStationSIST EN 300 761-1 V1.2.1:2003

ETSIETSIEN300761-1V1.2.1(2001-06)11FSKFrequencyShiftKeyingIFIntermediateFrequencyISMIndustrial,ScientificandMedicalITEInformationTechnologyEquipmentLLCLayerLevelControlMACMediumAccessControlOEMOriginalEquipmentManufacturerppmpartspermillion(10-6)PSTNPublicSwitchedTelephoneNetworkRFRadioFrequencyRxReceiverSRDShortRangeDeviceTUTrackUnitTxTransmitterUICUnionInternationaledesCheminsdefer(InternationalUnionofRailways)VSWRVoltageStandingWaveRatio4Generalrequirements4.1Generalrequirements4.1.1EquipmentclassificationTheproductcoveredbythepresentdocumenthasitsspecificsetofminimumperformancecriteria.Thisclassificationisbasedupontheimpactonpersonsandrequiredrailwayfunctionalityincasetheequipmentdoesnotoperateabovethespecifiedminimumperformancelevel.4.1.2GeneralperformancecriteriaForthepurposeofthereceiverperformancetests,thereceiverwillproduceanappropriateoutputundernormalconditionsasindicatedbelow.Wheretheindicatedperformancecannotbeachieved,themanufacturershalldeclareandpublishtheperformancecriteriausedtodeterminetheperformanceofthereceiver:-aSND/NDratioof20dB,measuredatthereceiveroutputthroughatelephonepsophometricweightingnetworkasdescribedinITU-TRecommendationO.41[6];or-afterdemodulation,adatasignalwithabiterrorratioof10-2;or-afterdemodulation,amessageacceptanceratioof80%.4.2PresentationofequipmentfortestingpurposesEachequipmentsubmittedfortestingshallfulfiltherequirementsofthepresentdocumentonallfrequenciesoverwhichitisintendedtooperate.WhereappropriatethemanufacturershouldchoseappropriatefrequenciesinconsultationwiththeAdministration(s)fromwhomtypeapprovalorconformitytotheR&TTEDirectiveissought.Ifanequipmentisdesignedtooperatewithdifferentcarrierpowers,measurementsofeachtransmitterparametershallbeperformedatthehighestpowerlevelatwhichthetransmitterisintendedtooperate.Additionally,technicaldocumentationandoperatingmanuals,sufficienttoallowtestingtobeperformed,shallbesupplied.Atestfixtureforequipmentwithanintegralantennamaybesuppliedbythemanufacturer(seeclause6.6).Tosimplifyandharmonizethetestingproceduresbetweenthedifferenttestinglaboratories,measurementsshallbeperformed,accordingtothepresentdocument,onsamplesofequipmentdefinedinclauses4.2.1to4.2.3.2.SIST EN 300 761-1 V1.2.1:2003

ETSIETSIEN300761-1V1.2.1(2001-06)12Theseclausesareintendedtogiveconfidencethattherequirementssetoutinthepresentdocumenthavebeenmetwithoutthenecessityofperformingmeasurementsonallfrequencies.OriginalEquipmentManufacturer's(OEM)plug-incardsorunitsmaybeofferedfortestingtogetherwithasuitabletestfixture.Alternatively,completeAVIequipmentmaybesuppliedbythemanufacturertofacilitatethetests.4.2.1ChoiceofmodelfortestingThemanufacturershallprovideoneormoresamplesoftheequipment,asappropriatefortesting.Standaloneequipmentshallbeofferedbythemanufacturercompletewithanyancillaryequipmentneededfortesting.Ifanequipmenthasseveraloptionalfeatures,considerednottoaffecttheRFparametersthenthetestsneedonlytobeperformedontheequipmentconfiguredwiththatcombinationoffeaturesconsideredtobethemostcomplex,asproposedbythemanufacturerandagreedbythetestlaboratory.Wherepracticable,equipmentofferedfortestingshallprovidea50ΩconnectorforconductedRFpowermeasurements.Inthecaseofintegralantennaequipment,iftheequipmentdoesnothaveainternalpermanent50Ωconnectorthenitispermissibletosupplyasecondsampleoftheequipmentwithatemporaryantennaconnectorfittedtofacilitatetesting,seeclause4.2.3.4.2.2TestingofequipmentwithalternativepowerlevelsIfafamilyofequipmenthasalternativeoutputpowerlevelsprovidedbytheuseofseparatepowermodulesoraddonstages,oradditionallyhasalternativefrequencycoverage,thenalltheseshallbedeclaredbythemanufacturer.Eachmoduleoraddonstageshallbetestedincombinationwiththeequipment.Thenecessarysamplesandtestscanbeproposedbythemanufacturerand/orthetestlaboratoryandshallbeagreedwiththeAdministration(s),basedontherequirementsofclause4.2.Asaminimum,measurementsoftheradiatedpower(eirp)andspuriousemissionsshallbeperformedforeachcombinationandshallbestatedinthetestreport.4.2.3Testingofequipmentthatdoesnothaveanexternal50OhmRFconnector(integralantennaequipment)4.2.3.1EquipmentwithaninternalpermanentortemporaryantennaconnectorThemeanstoaccessand/orimplementtheinternalpermanentortemporaryantennaconnectorshallbestatedbythemanufacturerwiththeaidofadiagram.Thefactthatusehasbeenmadeoftheinternalantennaconnection,orofatemporaryconnection,tofacilitatemeasurementsshallberecordedinthetestreport.4.2.3.2EquipmentwithatemporaryantennaconnectorThemanufacturer,maysubmitonesetofequipmentwiththenormalantennaconnected,toenableradiatedmeasurementstobemade.Themanufacturershallattendthetestlaboratoryattheconclusionoftheradiatedmeasurements,todisconnecttheantennaandfitthetemporaryconnector.Thetestinglaboratorystaffshallnotconnectordisconnectanytemporaryantennaconnector.Alternatively,themanufacturermaysubmittwosetsofequipmenttothetestlaboratory,onefittedwithatemporaryantennaconnectorwiththeantennadisconnectedandanotherequipmentwiththeantennaconnected.Eachequipmentshallbeusedfortheappropriatetests.Themanufacturershalldeclarethatthetwosetsofequipmentareidenticalinallaspectsexceptfortheantennaconnector.SIST EN 300 761-1 V1.2.1:2003

ETSIETSIEN300761-1V1.2.1(2001-06)134.3Mechanicalandelectricaldesign4.3.1GeneralTheequipmentsubmittedbythemanufacturer,shallbedesigned,constructedandmanufacturedinaccordancewithgoodengineeringpractice,andwiththeaimofminimizingharmfulinterferencetootherequipmentandservices.Transmittersandreceiversmaybeindividualorcombinationunits.4.3.2ControlsThosecontrolswhich,ifmaladjusted,mightincreasetheinterferingpotentialitiesoftheequipmentshallnotbeeasilyaccessibletotheuser.4.3.3Transmittershut-offfacilityIfthetransmitterisequippedwithanautomatictransmittershut-offfacility,itshouldbemadeinoperativeforthedurationofthetest.4.3.4ReceivermuteorsquelchIfthereceiverisequippedwithamute,squelchorbattery-savingcircuit,thiscircuitshallbemadeinoperativeforthedurationofthetests.4.3.5Marking(equipmentidentification)Theequipmentshallbemarkedinavisibleplace.Thismarkingshallbelegibleanddurable.Wherethisisnotpossibleduetophysicalconstraints,themarkingshallbeincludedintheusersmanual.4.3.5.1EquipmentidentificationThemarkingshallincludeasaminimum:-thenameofthemanufacturerorhistrademark;-thetypedesignation.4.3.5.2RegulatorymarkingTheequipmentshallbemarked,whereapplicable,inaccordancewithCEPT/ERCRecommendation70-03[1].WherethisisnotapplicabletheequipmentshallbemarkedinaccordancewiththeNationalRegulatoryrequirements.4.4InterpretationofthemeasurementresultsTheinterpretationoftheresultsrecordedontheappropriatetestreportforthemeasurementsdescribedinthepresentdocumentshallbeasfollows:-themeasuredvaluerelatedtothecorrespondinglimitshallbeusedtodecidewhetheranequipmentmeetstherequirementsofthepresentdocument;-themeasurementuncertaintyvalueforthemeasurementofeachparametershallbeincludedinthetestreport;-therecordedvalueofthemeasurementuncertaintyshallbe,foreachmeasurement,equaltoorlowerthanthefiguresofmeasurementuncertaintygiveninclause10.SIST EN 300 761-1 V1.2.1:2003

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