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,PABXsandPCMTerminalSystems TheMS371A/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. Features AutomaticmeasurementofA-A,A-D,D-AandD-D(A:analog,D:digital) ThisanalyzerautomaticallymeasuresmostoftheitemsinITU-TRecommendations-G.712/713/714.Thetestsequenceandparametersarestoredinternally,andnewtestsequencesorparameterscanbeenteredbytheoperator.Also,measurementcanbedonemanuallyorviaGPIB Framealignment/alarmtest FramealignmentandalarmtestsstipulatedinITU-TRec.G.704/O.162canbeperformed Errormeasurement Errorrate,errorcount,errorsecond,and%error-freesecondcanbemeasuredbydetectingthebit,frame,andcodeerrors Timingjittermeasurement Jittermodulationisavailable.Alsojitteramplitudeandjitterimmunitycanbemeasured Signallingmeasurement Manipulation/monitoringofthesignallingbitandE Msignallingdistortioncanbemeasured GPIBcontroller AGPIBcontrollerfunctionhasbeenincorporated.Onetothirtychannelscanbetestedautomaticallyandcontinuouslythroughthechannelselector Built-inprinter Resultsareprintedoutbythebuilt-inprinter.Inautomaticmeasurement,allresultscanbeprintedoutortheprintoutcanbelimitedtoresultsfailingtheevaluation Externalprinter Testresultsfromchannels1to30canbeeditedaccordingtomeasuringitemandprintedout.Areport,suchasatestperformancesheet,canbepreparedimmediatelyafterthecompletionofmeasurements 返回上一页 电话:010-62123258/62123259 邮箱:buy17@163.com