后面板PCM话路分析仪(PCMChannelAnalyzer)MS371A厂家:日本安立性能指标pdf官网介绍(英文)TheMS371A1isthesameastheMS371Abutalsohas64kb/sco-contradirectionalinterface.测量及维护M1X多工器，PABXs和PCM终端机系统MS371A/A1是一部用于数字基群传输的有许多测试功能的，全面的测试仪器。它可用来测量:(1)话音编码/解码表现特性(2)帧定位/警报测试(3)比特，编码和帧误码(4)时间抖动(5)信令等安立公司的MS371A/A1拥有测量PCM系统所必需要大多数功能，它是一全方位测试量仪器，可以提高测试效率。PCM系统的话声音编码/解码的测试需要更多的时间和工作量。MS371A/A1可储存所有测试顺序步骤及参数，并可重复呼叫出来从而大大减小测量时间并提高效率。它具有GPIB控制功能，与MS120A话路选抉器一起使用，可进行顺序的30个话路测试。它还可将测试结果与参考数值进行比较，做出判断并自动以"好"或"不好"来显示结果。测量结果亦可以内置的打印机打印出来，如有所需可外接打印机打印测试结果报告。传统的测试系统，其测试结果通过个人计算机或外置设备进行修改，但MS371A/A1可以在内部完成并印到外部打印机上。功能:自动测量A-A,A-D,D-A和D-D(A:类比；D:数位)；帧定位/警报测试误码测试时间抖动测量信令测试GPIB控制器内置打印机MeasurementandMaintenanceofM1XMultiplexers,PABXsandPCMTerminalSystemsTheMS371A/A1isanoverallmeasuringinstrumentwithmanymeasuringfunctionsfordigitalprimaryhierarchytransmission.Itcanbeusedtomeasure:(1)voiceencode/decodeperformancecharacteristics(2)framealignment/alarmtest(3)bit,code,andframeerrors(4)timingjitter(5)signalling,etc.TheAnritsuMS371A/A1hasmostofthefunctionsrequiredtomeasurePCMsystems.Itisanall-purposemeasuringinstrumentdesignedtoimprovemeasurementefficiency.MeasurementsofPCMvoiceencode/decodeperformancerequiremuchtimeandlabor.TheMS371A/A1storesthemeasurementsequenceandparametersinitsinternalmemoryandmakesautomaticmeasurementstomarkedlyimproveefficiency.IthasaGPIBcontrolfunction,whichwillallowmeasurementsof30channelsinonesequencewhencombinedwithchannelselector.Italsocomparesthemeasuredresultstoareferencevalue,judgesthem,anddisplaysGOODorNOGOODautomatically.Themeasuredresultscanthenbeprintedoutonthebuilt-inprinter.Anotherspecialfeatureisthatthereportofthemeasuredresultscanalsobeprintedoutanexternalprinter.Inconventionalmeasuringsystems,theresultsareeditedwithapersonalcomputerorsomeotherexternaldevice.However,theMS371A/A1performsthisfunctioninternallyandprintsouttotheexternalprinter.Thisuniquefunctioncaninstantaneouslypreparetestperformancesheetsduringinstallationandreporttheresultsofperiodicmaintenancewithouttheneedformanualorcomputerevaluation.FeaturesAutomaticmeasurementofA-A,A-D,D-AandD-D(A:analog,D:digital)ThisanalyzerautomaticallymeasuresmostoftheitemsinITU-TRecommendations-G.712/713/714.Thetestsequenceandparametersarestoredinternally,andnewtestsequencesorparameterscanbeenteredbytheoperator.Also,measurementcanbedonemanuallyorviaGPIBFramealignment/alarmtestFramealignmentandalarmtestsstipulatedinITU-TRec.G.704/O.162canbeperformedErrormeasurementErrorrate,errorcount,errorsecond,and%error-freesecondcanbemeasuredbydetectingthebit,frame,andcodeerrorsTimingjittermeasurementJittermodulationisavailable.AlsojitteramplitudeandjitterimmunitycanbemeasuredSignallingmeasurementManipulation/monitoringofthesignallingbitandE&MsignallingdistortioncanbemeasuredGPIBcontrollerAGPIBcontrollerfunctionhasbeenincorporated.OnetothirtychannelscanbetestedautomaticallyandcontinuouslythroughthechannelselectorBuilt-inprinterResultsareprintedoutbythebuilt-inprinter.Inautomaticmeasurement,allresultscanbeprintedoutortheprintoutcanbelimitedtoresultsfailingtheevaluationExternalprinterTestresultsfromchannels1to30canbeeditedaccordingtomeasuringitemandprintedout.Areport,suchasatestperformancesheet,canbepreparedimmediatelyafterthecompletionofmeasurements返回上一页电话:010-62123258/62123259邮箱:buy17@nikedunkheelsnikedunkhighheelsnikedunksbhighheelswomensnikedunkheelsnikeheelsdunkheelsdunkhighheelsnikedunkheelsforwomennikedunkbootsnikehighheelsairdunkhighheelsnikeheelsforwomenairjordanheelsjordanheelsairjordanhighheelsjordanhighheelsnikeairjordanheelsairjordanheelsforwomennikejordanheelsbootsjordanhighheelsbootsairhighheelsbootskengriffeyshoeskengriffeyjrshoesnikekengriffeyshoescheapkengriffeyshoesnikeairgriffeymax1nikeairgriffeyshoesnikegriffeyshoesAirMaxJRSummer2011AirMaxJRSummerAirgriffeyJRSummer2011kengriffeyJRSummer2011kengriffeySummer2011griffeyshoesnikeairgriffeykengriffeyshoes2011nikegriffeysairgriffeymax1nikeairgriffeygriffeysneakersredgriffeyshoesgriffeyshoes2011nikeair12centair12centpennynikeairpennyhalfcentnikeairhalfcentpennynikeairpennyairpennyhalfcentnikeairmax247airmax247nikeairmax247salecheapairmax247air247nikeair247airmax95bootskengriffeyjrmaxgd2airgriffeymaxgd2kengriffeyjrmaxgd2airgriffeymaxgd2nikedunkheelsnikedunkhighheelsnikedunksbhighheelswomensnikedunkheelsnikeheelsdunkheelsdunkhighheelsnikedunkheelsforwomennikedunkbootsnikehighheelsjordanbootsforwomennikeheelsforwomenairjordanheelsjordanheelsairjordanhighheelsjordanhighheelsnikeairjordanheelsairjordanheelsforwomennikejordanheelsbootsjordanhighheelsbootskengriffeyshoeskengriffeyjrshoesnikekengriffeyshoescheapkengriffeyshoesnikeairgriffeymax1nikeairgriffeynikeairgriffeyshoeskengriffeyshoes2011AirMaxJRSummer2011AirMaxJRSummerAirgriffeyJRSummer2011kengriffeyJRSummer2011kengriffeySummer2011kengriffeyjrSummershoesnikegriffeysbluegriffeyshoesgriffeyshoesnikeair12centair12centpennynikeairpennyhalfcentnikeairhalfcentpennyairpennyhalfcentnikeairpennynikeairhalfcentpeenynikeairmax247airmax247nikeairmax247salecheapairmax247air247nikeair247airmax95bootskengriffey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