CTC G703FTEC E1/T1转换器
E1/T1AccessFamilyE1/T1Cross-RateConverterG703FTECTheG703-FTECis1Uhalf19stand-aloneorrackmountableT1(USStandard),E1(EuropeanStandard)converterandtimeslotcrossconnectwhichenablesconversionbetweenoneT1signalandoneE1signal.T1andE1signalswithframesemployu-LawandA-Lawcompanderencodingprinciplesrespectivelyandencodethoseanalogsignalsinto64kbitsdigitaldata.TheE1interfacesupportsCCS(PCM31)orCAS(PCM30)frameswithorwithoutCRC-4andwithHDB3linecoding.TheT1interfacesupportsD4orESFframeformatswithB8ZSorAMIlinecode.MultipleclocksourceselectionprovidesmaximumflexibilityinconnectingbothT1andE1.TheclocksourcemaybefromtheT1recoveryclock,fromtheE1recoveryclock,fromtheinternaloscillator,fromanexternalclockorviatransparenttiming.AllsetupcontrolscanbeperformedviainternalDIPswitchsettingsorviatheRS-232c***oleportandASCIIterminal.Testsanddiagnosticscaneasilybeperformedfromthefrontpanelpushbuttonswitches.DiagnosticsincludeT1local/remoteandE1local/remoteloopback.FeaturesConvertsbetweenT1andE1dataandsignalingEnableequipmenttooperateatT1andE1ratesSupportG.802AnnexBConfiguresA-law/m-lawandsignalingconversionTransparentconversionat64kbpstimeslotlevelControlledslipforbufferoverorunderflow24timeslotsofT1Nx64canbeinsertedintoE1Nx64,30/CASor31/CCStimeslotsApplicationSpecificati***PortsLEDsStandardPowerPowerC***umptionDimensi***(DxWxH)mmWeightTemperatureHumidityCertificationMTBFE1interfaceFraming:CAS/PCM30orCCS/PCM31selectableBitrate:2.048MbpsLineCode:HDB3LineImpedance:75ohm(BNC)/120ohm(RJ-45)VoicechannelsampleruleA-LawCRCcheck:CRC-4enable/disablePulseamplitude:Nominal2.37V±10%for75ohm,Nominal3.00V±10%for120ohmZeroamplitude:±0.1VConnector:RJ-45andBNCpairT1interfaceFraming:D4,ESFselectableBitrate:1.544MbpsLineCode:B8ZS/AMIEqualization:0~655feetsettableVoicechannelsampleruleu-LawCRCcheck:CRC-6whenESFLineImpedance:100ohmsTran***itPulselevel:3.0V±10%,Receivesignallevel:0~-10dBConnector:RJ-45andBantamJacksPowerAlarmITU-TG.703,G.704,G.706,G.823,G.824,ANSIT1.403AC:100~240VACDC24:-18~36VDC,D***8:-36~72VDC15W235x195x45mm1.6kg0~50°C(Operating),0~70°C(Storage)10~90%non-condensingCE,FCC,RoHS57,000hours)