SIST EN 301 277 V1.1.1:2003

Fixed Radio Systems; Point-to-point equipment; High capacity digital radio systems transmitting STM-4 or 4 x STM-1 in a 40 MHz radio frequency channel using Co-Channel Dual Polarized (CCDP) operation

Specify technical parameters for high capacity DRRS operating in frequency bands with 40 MHz channel spacing e.g. 4GHz, 5GHz, 6GHz and 11GHz bands, transmitting four STM-1 signals (STM-4) per 40 MHz RF channel by using both polarizations in the co-channel dual polarized (CCDP) mode. The system is intended for operation on trunk routes.

Fiksni radijski sistemi – Oprema tipa točka-točka – Visoko zmogljivi digitalni radijski sistemi, ki oddajajo STM-4 ali 4 x STM-1 v radiofrekvenčnem kanalu 40 MHz in uporabljajo dvojno polarizacijo prek sosednjega kanala (CCDP)

General Information

• Status: Published
• Publication Date: 30-Nov-2003
• ICS: 33.040.20 - Transmission systems
• ICS: 33.060.30 - Radio relay and fixed satellite communications systems
• 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
• Ref Project: ETSI EN 301 277 V1.1.1 (2000-02) - Fixed Radio Systems; Point-to-point equipment; High capacity digital radio systems transmitting STM-4 or 4 x STM-1 in a 40 MHz radio frequency channel using Co-Channel Dual Polarized (CCDP) operation

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.'3Fixed Radio Systems; Point-to-point equipment; High capacity digital radio systems transmitting STM-4 or 4 x STM-1 in a 40 MHz radio frequency channel using Co-Channel Dual Polarized (CCDP) operation33.060.30Radiorelejni in fiksni satelitski komunikacijski sistemiRadio relay and fixed satellite communications systems33.040.20Prenosni sistemTransmission systemsICS:Ta slovenski standard je istoveten z:EN 301 277 Version 1.1.1SIST EN 301 277 V1.1.1:2003en01-december-2003SIST EN 301 277 V1.1.1:2003SLOVENSKI
STANDARD



SIST EN 301 277 V1.1.1:2003



ETSIEN301277V1.1.1(2000-02)EuropeanStandard(Telecommunicationsseries)FixedRadioSystems;Point-to-pointequipment;HighcapacitydigitalradiosystemstransmittingSTM-4or4xSTM-1ina40MHzradiofrequencychannelusingCo-ChannelDualPolarized(CCDP)operationSIST EN 301 277 V1.1.1:2003



ETSIETSIEN301277V1.1.1(2000-02)2ReferenceDEN/TM-04041Keywordsdigital,DRRS,radio,SDH,STM,transmission,point-to-pointETSIPostaladdressF-06921SophiaAntipolisCedex-FRANCEOfficeaddress650RoutedesLucioles-SophiaAntipolisValbonne-FRANCETel.:[phone]Fax:[phone]SiretN°34862356200017-NAF742CAssociationàbutnonlucratifenregistréeàlaSous-PréfecturedeGrasse(06)N°7803/[e-mail]ETSIdeliverablecanbedownloadedfromhttp://www.etsi.orgIfyoufinderrorsinthepresentdocument,sendyourcommentto:[e-mail]Ideliverablemaybemadeavailableinmorethanoneelectronicversionorinprint.Inanycaseofexistingorperceiveddifferenceincontentsbetweensuchversions,thereferenceversionisthePortableDocumentFormat(PDF).Incaseofdispute,thereferenceshallbetheprintingonETSIprintersofthePDFversionkeptonaspecificnetworkdrivewithinETSISecretariat.CopyrightNotificationNopartmaybereproducedexceptasauthorizedbywrittenpermission.Thecopyrightandtheforegoingrestrictionextendtoreproductioninallmedia.©EuropeanTelecommunicationsStandardsInstitute2000.Allrightsreserved.SIST EN 301 277 V1.1.1:2003



ETSIETSIEN301277V1.1.1(2000-02)3ContentsIntellectualPropertyRights.5Foreword.51Scope.62References.63Symbolsandabbreviations.83.1Symbols.83.2Abbreviations.94Generalcharacteristics.94.1Frequencybandsandchannelarrangements.94.2Modesofoperation.104.3Compatibilityrequirements.104.4Performanceandavailabilityrequirements.104.5Environmentalconditions.104.5.1Equipmentwithinweatherprotectedlocations(indoorlocations).104.5.2Equipmentfornon-weatherprotectedlocations(outdoorlocations).104.6Mechanicaldimensions.104.7Powersupply.114.8ElectromagneticCompatibility(EMC).114.9TMNinterfaces.114.10Blockdiagram.114.11Branching/feeder/antennarequirements.124.11.1Antennaradiationpattern.124.11.2Antennacross-polardiscrimination.125SDHbasebandcharacteristics.126Transmittercharacteristics.126.1Outputpower.126.2AutomaticTransmitPowercontrol(ATPC).136.3RemoteTransmitPowerControl(RTPC).136.4RFspectrummasks.136.5Spectrallinesatthesymbolrate.166.6Spuriousemissions.166.6.1Spuriousemissions-External.166.6.2Spuriousemissions-Internal.166.7Radiofrequencytolerance.176.8Returnloss.176.9Intermodulationproducts.177Receivercharacteristics.177.1Localoscillatorfrequencytolerance.177.2Receiverimagerejection.177.3Spuriousemissions.177.3.1Spuriousemissions-External.177.3.2Spuriousemissions-Internal.177.4Inputlevelrange.187.5Returnloss.188Systemperformancewithoutdiversity.188.1EquipmentbackgroundBER.188.2BERasafunctionofreceiveinputlevel(dBm).188.3Interferencesensitivity.198.3.1Co-channel"external"interferencesensitivity.198.3.2Adjacentchannelinterferencesensitivity.198.4Distortionsensitivity.20SIST EN 301 277 V1.1.1:2003



ETSIETSIEN301277V1.1.1(2000-02)48.5Sensitivitytodynamicfading.209Systemcharacteristicswithdiversity.209.1Differentialdelaycompensation.209.2BERperformance.219.3Interferencesensitivity.219.4Distortionsensitivity.2110Crosspolarinterferencesensitivity.2110.1Co-channel"internal"interferencesensitivityinflatfadingconditions.2110.2Co-channel"internal"interferencesensitivityindispersivefadingconditions.22AnnexA(informative):Additionalinformation.23A.1ATPC.23A.2Branching,feederandantenna.23A.2.1Antennaradiationpatternenvelopes.23A.2.2Cross-polardiscrimination(XPD).23A.2.3Interportisolation.23A.2.4Feeder/antennareturnloss.23A.3Compatibility.24A.4Mechanicalrequirements.24Bibliography.25History.26SIST EN 301 277 V1.1.1:2003



ETSIETSIEN301277V1.1.1(2000-02)5IntellectualPropertyRightsIPRsessentialorpotentiallyessentialtothepresentdocumentmayhavebeendeclaredtoETSI.TheinformationpertainingtotheseessentialIPRs,ifany,ispubliclyavailableforETSImembersandnon-members,andcanbefoundinSR000314:"IntellectualPropertyRights(IPRs);Essential,orpotentiallyEssential,IPRsnotifiedtoETSIinrespectofETSIstandards",whichisavailablefromtheETSISecretariat.LatestupdatesareavailableontheETSIWebserver(http://www.etsi.org/ipr).PursuanttotheETSIIPRPolicy,noinvestigation,includingIPRsearches,hasbeencarriedoutbyETSI.NoguaranteecanbegivenastotheexistenceofotherIPRsnotreferencedinSR000314(ortheupdatesontheETSIWebserver)whichare,ormaybe,ormaybecome,essentialtothepresentdocument.ForewordThisEuropeanStandard(Telecommunicationsseries)hasbeenproducedbyETSITechnicalCommitteeTransmissionandMultiplexing(TM).Theformertitleofthepresentdocumentwas:"TransmissionandMultiplexing(TM);DigitalRadioRelaySystems(DRRS);HighcapacityDRRStransmittingSTM-4or4xSTM-1ina40MHzradiofrequencychannelusingCo-ChannelDualPolarized(CCDP)operation".NationaltranspositiondatesDateofadoptionofthisEN:21January2000DateoflatestannouncementofthisEN(doa):30April2000DateoflatestpublicationofnewNationalStandardorendorsementofthisEN(dop/e):31October2000DateofwithdrawalofanyconflictingNationalStandard(dow):31October2000SIST EN 301 277 V1.1.1:2003



ETSIETSIEN301277V1.1.1(2000-02)61ScopeThepresentdocumentdefinestechnicalparametersforahighcapacityDigitalRadioRelaySystem(DRRS)operatinginfrequencybandswith40MHzchannelspacinge.g.the4GHz,5GHz,U6GHzand11GHzbands.ThecapacityshouldbeSTM-4or4×STM-1per40MHzRF-channelbyusingbothpolarizationsintheco-channeldualpolarized(CCDP)modeofoperation.TheareaofapplicationoftheseDRRSisforeseentobeinregionalandtrunknetworksformingpartofaSDH-networkincludingSTM-4rings.SystemsconsideredinthepresentdocumentshouldbeabletorespectITU-Rhighgradeperformanceobjectives.Thesystemsconsideredshouldoperateinthesenetworkshavingregardforexistinghoplength,whichareconsideredtobenormallyuptoabout30kmto40kmforregionalandabout60kmfortrunknetworks,respectively.Hoplengthsgreaterthanthislatterlengthareusedinspecialapplications.ForinformationaboutcompatibilitywithothersystemsseeclauseA.3.Theparametersspecifiedfallintotwocategories:a)Thosethatarerequiredtoprovidecompatibilitybetweenchannelsfromdifferentsourcesofequipmentonthesamerouteconnectedtoseparateantennas.NOTE:Equipmentsuppliedbydifferentmanufacturersonthesamepathorexistingradio-relaysystemsoperateondifferentfrequencies.b)Parametersdefiningthetransmissionqualityoftheproposedsystem.ThestandardizationdealswithbasebandandRFcharacteristicsrelevanttoSDH.Antenna/feedersystemrequirementsarealsoconsidered.BasebandinterfaceshavetobeconsideredforSTM-1signalsandSTM-4signalsinaccordancewithITU-TRecommendationsG.707[6]andG.957[21]respectively.2ReferencesThefollowingdocumentscontainprovisions,which,throughreferenceinthistext,constituteprovisionsofthepresentdocument.•Referencesareeitherspecific(identifiedbydateofpublication,editionnumber,versionnumber,etc.)ornon-specific.•Foraspecificreference,subsequentrevisionsdonotapply.•Foranon-specificreference,subsequentrevisionsdoapply.•Anon-specificreferencetoanETSshallalsobetakentorefertolaterversionspublishedasanENwiththesamenumber.[1]ITU-RRecommendationF.384-6(1995):"Radio-frequencychannelarrangementsformediumandhighcapacityanalogueordigitalradio-relaysystemsoperatingintheupper6GHzband".[2]ITU-RRecommendationF.387-7(1995):"Radio-frequencychannelarrangementsforradio-relaysystemsoperatinginthe11GHzband".[3]ITU-RRecommendationF.635-4(1997):"Radio-frequencychannelarrangementsbasedonahomogeneouspatternforradio-relaysystemsoperatinginthe4GHzband".[4]ITU-RRecommendationF.750-3(1997):"Architecturesandfunctionalaspectsofradio-relaysystemsforSDH-basednetworks".SIST EN 301 277 V1.1.1:2003



ETSIETSIEN301277V1.1.1(2000-02)7[5]ITU-RRecommendationF.1099-2(1997):"Radio-frequencychannelarrangementsforhigh-capacitydigitalradio-relaysystemsinthe5GHz(4400MHzto5000MHz)band".[6]ITU-TRecommendationG.707(1996):"Networknodeinterfaceforthesynchronousdigitalhierarchy(SDH)".[7]ITU-RRecommendationSM.329-7(1997):"SpuriousEmissions".[8]ITU-TRecommendationG.773(1993):"ProtocolsuitesforQ-interfacesformanagementoftransmissionsystems".[9]ITU-TRecommendationG.784(1999):"Synchronousdigitalhierarchy(SDH)management".[10]ETS300019(allparts):"Equipmentengineering(EE);Environmentalconditionsandenvironmentaltestsfortelecommunicationsequipment".[11]ETS300119(allparts):"Equipmentengineering(EE);Europeantelecommunicationstandardforequipmentpractice".[12]EN300385:"ElectromagneticcompatibilityandRadiospectrumMatters(ERM);ElectroMagneticCompatibility(EMC)standardforfixedradiolinksandancillaryequipment".[13]ETS300132(allparts):"EquipmentEngineering(EE);Powersupplyinterfaceattheinputtotelecommunicationsequipment".[14]ETS300635:"TransmissionandMultiplexing(TM);SynchronousDigitalHierarchy(SDH);RadiospecificfunctionalblocksfortransmissionofMxSTM-N".[15]EN300833:"FixedRadioSystems;PointtoPointAntennas;Antennasforpoint-to-pointfixedradiosystemsoperatinginthefrequencyband3GHzto60GHz".[16]ITU-TRecommendationG.703(1991):"Physical/electricalcharacteristicsofhierarchicaldigitalinterfaces".[17]ITU-RRecommendationF.1191-1(1997):"Bandwidthsandunwantedemissionsofdigitalradio-relaysystems".[18]ITU-TRecommendationO.151(1992):"Errorperformancemeasuringequipmentoperatingattheprimaryrateandabove".[19]ITU-TRecommendationO.181(1996):"EquipmenttoassesserrorperformanceonSTM-Ninterfaces".[20]ITU-TRecommendationG.783(1997):"Characteristicsofsynchronousdigitalhierarchy(SDH)equipmentfunctionalblocks".[21]ITU-TRecommendationG.957(1995):"Opticalinterfacesforequipmentsandsystemsrelatingtothesynchronousdigitalhierarchy".[22]TR101035:"TransmissionandMultiplexing(TM);SynchronousDigitalHierarchy(SDH)aspectsregardingDigitalRadioRelaySystems(DRRS)".[23]ITU-RRecommendationF.695(1990):"Availabilityobjectivesforrealdigitalradio-relaylinksformingpartofahigh-gradecircuitwithinanintegratedservicesdigitalnetwork".[24]ITU-RRecommendationF.1092-1(1997):"Errorperformanceobjectivesforconstantbitratedigitalpathatorabovetheprimaryratecarriedbydigitalradio-relaysystemswhichmayformpartoftheinternationalportionofa27500kmhypothethicalreferencepath".[25]ITU-RRecommendationF.1189-1(1997):"Errorperformanceobjectivesforconstantbitratedigitalpathsatorabovetheprimaryratecarriedbydigitalradio-relaysystemswhichmayformpartorallofthenationalportionofa27500kmhypotheticalreferencepath".[26]ITU-RRecommendationF.557-4(1997):"Availabilityobjectiveforradio-relaysystemsoverahypotheticalreferencecircuitandahypotheticalreferencedigitalpath".SIST EN 301 277 V1.1.1:2003



ETSIETSIEN301277V1.1.1(2000-02)8[27]ITU-TRecommendationG.826(1996):"Errorperformanceparametersandobjectivesforinternational,constantbitratedigitalpathsatorabovetheprimaryrate".[28]ITU-TRecommendationG.827(1996):"Availabilityparametersandobjectivesforpathelementsofinternationalconstantbit-ratedigitalpathsatorabovetheprimaryrate".[29]ITU-RRecommendationF.752-1(1993):"Diversitytechniquesforradio-relaysystems".[30]ITU-RRecommendationF.1093-1(1997):"Effectsofmultipathpropagationonthedesignandoperationofline-of-sightdigitalradio-relaysystems".[31]ITU-RRecommendationF.1101(1993):"Characteristicsofdigitalradio-relaysystemsbelowabout17GHz".[32]EN301127:"TransmissionandMultiplexing(TM);DigitalRadioRelaySystems(DRRS);SynchronousDigitalHierarchy(SDH);HighcapacityDRRScarryingSDHsignals(2xSTM-1)infrequencybandswithabout30MHzchannelspacingandusingCo-ChannelDualPolarized(CCDP)operation".[33]CEPT/ERCRecommendation12-08:"Harmonizedradiofrequencychannelarrangementsandblockallocationsforlow,mediumandhighcapacitysystemsintheband3600MHzto4200MHz".[34]CEPT/ERCRecommendation14-02:"Radio-frequencychannelarrangementsformediumandhighcapacityanalogueorhighcapacitydigitalradio-relaysystemsoperatingintheband6425MHzto7125MHz".[35]CEPT/ERCRecommendation12-06:"Harmonizedradiofrequencychannelarrangementsfordigitalterrestrialfixedsystemsoperatingintheband10,7GHzto11,7GHz".[36]ETR019:"TransmissionandMultiplexing(TM);Specificationofnewgenerationhigh-capacitydigitalradiosystemscarrying2xSTM-1SynchronousDigitalHierarchy(SDH)signalsinfrequencybandswith40MHzchannelspacing".[37]TR101127:"TransmissionandMultiplexing(TM);DigitalRadioRelaySystems(DRRS);SynchronousDigitalHierarchy(SDH);HighcapacityDRRScarryingSDHsignals(1xSTM-1)infrequencybandswithabout30MHzchannelspacingandusingCo-ChannelDualPolarized(CCDP)operation".[38]CEPT/ERCRecommendation74-01:"Spuriousemissions".3Symbolsandabbreviations3.1SymbolsForthepurposesofthepresentdocument,thefollowingsymbolsapply:dBdecibeldBmdecibelrelativeto1mWGHzGigaHertzkmkilometreMbit/sMega-bitpersecondMHzMegaHertzm/smetrespersecondppmpartspermillionnsnanosecondW/m2WattspersquaremetreSIST EN 301 277 V1.1.1:2003



ETSIETSIEN301277V1.1.1(2000-02)93.2AbbreviationsForthepurposesofthepresentdocument,thefollowingabbreviationsapply:ATPCAutomaticTransmitPowerControlBERBitErrorRateC/ICarriertoInterferenceratioCCDPCo-ChannelDualPolarizedIFIntermediateFrequencyNFDNetFilterDiscriminationPDHPlesiochronousDigitalHierachyQAMQadratureAmplitudeModulationRCSOHRadioComplementarySectraOverHeatRFRadioFrequencyRFCOHRadioFrameComplementaryOverHeatRXReceiverSDHSynchronousDigitalHierarchySOHSectionOverHeadSTM-1SynchronousTransportModuleLevel1(155,52Mbit/s)STM-4SynchronousTransportModuleLevel4(622Mbit/s)TMNTelecommunicationManagementNetworkTXTransmitterU6Upper6(GHzfrequencyband)XIFCrosspolarizationimprovementfactorduetoXPICoperationXPDCrossPolarDiscriminationXPICrossPolarInterferenceXPICCrossPolarInterferenceCanceller4Generalcharacteristics4.1FrequencybandsandchannelarrangementsThesystemshallberequiredtooperateinthefollowingfrequencybands,accordingtothespecifiedCEPTandITU-RRecommendationsonthequotedchannelspacings.4GHzCEPT/ERCRecommendation12-08[33],annexA,Part1with40MHzchannelspacingITU-TRecommendationG.826[27]andITU-RRecommendationF.635-4[3]with40MHzchannelspacing.ThecentregapbetweentransmittersandreceiversinITU-RRecommendationF.635-4[3]is80MHz.5GHzITU-RRecommendationF.1099-2[5]with40MHzchannelspacing.ThecentregapbetweentransmittersandreceiversinITU-RRecommendationF.1099-2[5]is60MHz.U6GHzCEPT/ERCRecommendation14-02[34]andITU-RRecommendationF.384-6[1]with40MHzchannelspacing.ThecentregapbetweentransmittersandreceiversinITU-RRecommendationF.384-6[1]is60MHz.11GHzCEPT/ERCRecommendation12-06[35]andITU-RRecommendationF.387-7[2]with40MHzchannelspacing.ThecentregapbetweentransmittersandreceiversinITU-RRecommendationF.387-7[2]is130MHz.SIST EN 301 277 V1.1.1:2003



ETSIETSIEN301277V1.1.1(2000-02)104.2ModesofoperationThemodeofoperationshouldbeCo-ChannelDualPolarized(CCDP)forallfrequencybandsuptoandincluding11GHz.IndefiningsystemcharacteristicsofCCDPsystems,theadditionallossesintroducedbybranchingnetworksshallbetakenintoaccount.Dependingontheimplementation(splitbranchingforevenandoddchannelsfollowedbya3dBlosshybridputatreferencepointCand/orC',narrowbandRFfiltersconceptorothers)additionallossesrangingfrom3dBto6dBshallbeconsideredinevaluatingtheavailablenetsystemgain.Whennarrow-bandRFfiltersareusedlossesaffectdirectlyreceiverthresholdsatreferencepointB.Asaconsequencethisshallbetakenintoaccountinspecifyingreceiverthresholdlimits.4.3CompatibilityrequirementsThereshallbenorequirementtooperatetransmittingequipmentfromonemanufacturerwithreceivingequipmentfromanother.4.4PerformanceandavailabilityrequirementsEquipmentshallbedesignedinordertomeetnetworkperformanceandavailabilityrequirementsforeseenbyITU-RRecommendationsF.695[23],F.1092-1[24],F.1189-1[25]andF.557-4[26]followingthecriteriadefinedinITU-TRecommendationsG.826[27]andG.827[28]fortheinternationalornationalportionofthedigitalpath.TheimplicationofthelinkdesignontheperformanceisrecognizedandthegeneraldesigncriteriareportedinITU-RRecommendationsF.752-1[29],F.1093-1[30],F.1101[31],F.1092-1[24]andF.1189-1[25]aretobeapplied.4.5EnvironmentalconditionsTheequipmentshallberequiredtomeettheenvironmentalconditionssetoutinETS300019[10]whichdefinesweatherprotectedandnon-weatherprotectedlocations,classesandtestseverity.Themanufacturershallstatewhichclasstheequipmentisdesignedtowithstand.4.5.1Equipmentwithinweatherprotectedlocations(indoorlocations)TheequipmentintendedforoperationwithintemperaturecontrolledlocationsorpartiallytemperaturecontrolledlocationsshallmeettherequirementsofETS300019[10]subclasses3.1and3.2respectively.Optionally,themorestringentrequirementsofETS300019[10]subclasses3.3(non-temperaturecontrolledlocations),3.4(siteswithheattrap)and3.5(shelteredlocations)maybeapplied.4.5.2Equipmentfornon-weatherprotectedlocations(outdoorlocations)Equipmentintendedforoperationwithinnon-weatherprotectedlocationsshallmeettherequirementsofETS300019[10]class4.1or4.1E.Class4.1appliestomanyEuropeancountriesandclass4.1EappliestoallEuropeancountries.Forsystemssuppliedwithinaspecificradiocabinetwhichgivesfullprotectionagainstprecipitation,wind,etc.theETS300019[10]subclasses3.3,3.4and3.5maybeappliedalsoforequipmentintendedforoperationinnon-weatherprotectedlocations.4.6MechanicaldimensionsSeeclauseA.4.SIST EN 301 277 V1.1.1:2003



ETSIETSIEN301277V1.1.1(2000-02)114.7PowersupplyThepowersupplyinterfaceshallbeinaccordancewiththecharacteristicsofoneormoreofthesecondaryvoltagesforeseeninETS300132[13].4.8ElectromagneticCompatibility(EMC)FixedServicesequipmentwithcapacityofabout2Mbit/sandaboveshalloperateundertheconditionsspecifiedinEN300385[12].4.9TMNinterfacesTMNinterface,ifany,shouldbeinaccordancewithITU-TRecommendationG.773[8].NOTE:ThestandardizationofTMNinterfacefunctionalitiesisunderresponsibilityanddevelopmentinETSITC/TMN,andwillbeapplicabletotheradiorelaysystemsconsideredinthepresentdocument.4.10BlockdiagramThereferencepointsareshowninfigure1.Thesepointsarereferencepointsonlyandnotnecessarilymeasurementpoints.Thereceiverdiversitypathshownintheblockdiagramrefersonlytocombiningtechniques.EV'MODEH'TRANSMITTERAV'TRANSMITTERAH'TRANSMITBV'BH'BRANCHINGCV'BRANCHINGCH'RFFILTERTRANSMITRFFILTERV'FEEDERDV'FEEDERDH'Z'EDVEDHRECEIVERADVRECEIVERADHRECEIVEBDVBDHBRANCHINGCBRANCHINGCRFFILTERRECEIVERFFILTERDVDHFEEDERDDVFEEDERDDH(*)(*)EVEHRECEIVERAVRECEIVERAHRECEIVEBVBHBRANCHINGCVBRANCHINGCHRFFILTERRECEIVERFFILTERVHFEEDERDVFEEDERDHZ(*)(*)(**)(**)(**)DIVERSITYRECEIVERPATHMAINRECEIVERPATHMODVHDEMODDEMODVHDEMODDEMODVHNOTE:ASTM-4or4xSTM-1interfaceisusedatZandZ'.(*)Nofilterincluded.(**)ConnectionatRF,iforbaseband.Figure1:BlockDiagramSIST EN 301 277 V1.1.1:2003



ETSIETSIEN301277V1.1.1(2000-02)124.11Branching/feeder/antennarequirementsAntennasrequiredsystemspecifiedinthepresentdocumentshallcomplywithEN300833[15].TheclassofantennasconsideredasprerequisiteforthissystemarestatedinannexA.4.11.1AntennaradiationpatternSeeannexA.4.11.2Antennacross-polardiscriminationSeeannexA.5SDHbasebandcharacteristicsTheSDHbasebandinterfaceshallbeinaccordancewithITU-TRecommendationsG.703[16],G.707[6],G.783[20],G.784[9],G.957[21]andETS300635[14].Oneormoreofthefollowingbasebandinterfacesshallbeimplemented:-STM-4opticalinterface(ITU-TRecommendationG.957[21]);-4×STM-1opticalinterface(ITU-TRecommendationG.957[21]);-4×STM-1CMIelectricalinterface(ITU-TRecommendationG.703[16]).TheuseofreservedbytescontainedintheSOH,andtheirterminationshallbeinaccordancewithITU-RRecommendationF.750-3[4].FurtherdetailsonthepossibleuseoftheSOHbytesincludingadditionalRFCOHorRCSOHaregiveninTR101035[22].6TransmittercharacteristicsThespecifiedtransmittercharacteristicsshallbemetwiththeappropriatebasebandsignalsappliedatpointZ'offigure1.ForthePDHinterfacethisshallbeinaccordancewithITU-TRecommendationO.151[18]andforSDHinterfacesinaccordancewithITU-TRecommendationO.181[19].6.1OutputpowerThevalueofthenominaloutputpowerreferredtopointB'shallbeinoneoftherangesshownintable1notincludingtheATPC.Table1:NominalOutputpowerrangesclassA+26dBm+31dBmclassB+31dBm+36dBmclassC+36dBm+41dBmThetoleranceforthenominalvalueshallbeequalorlessthan±1dB.Themaximumnominalvalueshallbedeclaredbythemanufacturer.SIST EN 301 277 V1.1.1:2003



ETSIETSIEN301277V1.1.1(2000-02)136.2AutomaticTransmitPowercontrol(ATPC)ATPCisanoptionalfeature.EquipmentwithATPCwillbesubjecttomanufacturerdeclarationoftheATPCrangesandrelatedtolerances.Testingshallbecarriedoutwithoutputpowerlevelcorrespondingto:-ATPCsetmanuallytoafixedvalueforSystemperformance;-ATPCsetatmaximumprovidedoutputpowerforTxperformance.6.3RemoteTransmitPowerControl(RTPC)RTPCisanoptionalfeature.EquipmentwithRTPCwillbesubjecttomanufacturerdeclarationoftheRTPCrangesandrelatedtolerances.Testingshallbecarriedoutwithoutputpowerlevelcorrespondingto:-RTPCsetmanuallytothemaximumandtotheminimumvaluesforSystemperformance;-RTPCsetatmaximumprovidedoutputpowerforTxperformance;-RFspectrummaskshallbeverifiedatthreepoints(lower,medium,andupperpartofthefrequencybandenvisaged),ifapplicable.Txpowercontrolshallbesettothemaximumvalue.6.4RFspectrummasksThethreemainfactorsconsideredinrecommendingamaskareasfollows:a)controlofinterferenceintoanaloguechannelsoperatingontheadjacentchannelallocation;b)controlofinterferenceintodigitalchannelsbetweensystemsofdi
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