FeaturesUpto27.952GbpsDatarateperchannelMaximumlinklengthof150mlinksonOM4multimodefiberHighReliability850nmVCSELtechnologyElectricallyhot-pluggableDuplexLCopticalrecept***eDigitaldiagnosticSFF-8636compliantRoHS-6compliantandlead-freeCompliantwithQSFP28MSAwithLCconnectorSingle+3.3VpowersupplyMaximumpowerc***umption2.0WAll-metalhousingforsuperiorEMIperformanceCaseoperatingtemperatureCommercial:0~+70oCGeneralDescriptionHTF’100GQSFP28SR4opticaltran***itterportionofthetransceiverincorporatesa4-channelVCSEL(VerticalC***itySurfaceEmittingLaser)array,a4-channelinputbufferandlaserdriver,diagnosticmonitors,controlandbiasblocks.Formodulecontrol,thecontrolinterfaceincorporatesaTwoWireSerialinterfaceofclockanddatasignals.DiagnosticmonitorsforVCSELbias,moduletemperature,tran***ittedopticalpower，receivedopticalpowerandsupplyvoltageareimplementedandresultsare***ailablethroughtheTWSinterface.Alarmandwarningthresholdsareestablishedforthemonitoredattributes.Flagsaresetandinterruptsgeneratedwhentheattributesareoutsidethethresholds.Flagsarealsosetandinterruptsgeneratedforlossofinputsignal(LOS)andtran***itterfaultconditi***.Allflagsarelatchedandwillremainseteveniftheconditioninitiatingthelatchclearsandoperationresumes.Allinterruptscanbemaskedandflagsareresetbyreadingtheappropriateflagregister.Theopticaloutputwillsquelchforlossofinputsignalunlesssquelchisdisabled.FaultdetectionorchanneldeactivationthroughtheTWSinterfacewilldisablethechannel.Status,alarm/warningandfaultinformationare***ailableviatheTWSinterface.Theopticalreceiverportionofthetransceiverincorporatesa4-channelPINphotodiodearray,a4-channelTIAarray,a4channeloutputbuffer,diagnosticmonitors,andcontrolandbiasblocks.Diagnosticmonitorsforopticalinputpowerareimplementedandresultsare***ailablethroughtheTWSinterface.Alarmandwarningthresholdsareestablishedforthemonitoredattributes.Flagsaresetandinterruptsgeneratedwhentheattributesareoutsidethethresholds.Flagsarealsosetandinterruptsgeneratedforlossofopticalinputsignal(LOS).Allflagsarelatchedandwillremainseteveniftheconditioninitiatingtheflagclearsandoperationresumes.Allinterruptscanbemaskedandflagsareresetuponreadingtheappropriateflagregister.Theelectricaloutputwillsquelchforlossofinputsignal(unlesssquelchisdisabled)andchannelde-activationthroughTWSinterface.Statusandalarm/warninginformationare***ailableviatheTWSinterface.ParameterSymbolMin.TypicalMaxUnitNotesTran***itterCenterW***elengthλC840850860nmOpticalSpectralWidth?λ0.6nm***erageLaunchPowereachlaneP***G-8.42.4dBmOpticalExtinctionRatioER2dBTran***itterandDispersionPenaltyTDP4.3dBTran***itterOFFOutputPowerPoff-30dBmTran***itterEyeMaskCompliantwithIEEE802.3aeReceiverCenterW***elengthλC840860nmRxSensitivityperlaneSen.-10.3dBm1InputSaturationPower(overload)Psat2.4dBmLOSAssertLOSA-26dBmLOSDe-assertLOSD-12dBmLOSHysteresisLOSH0.5dB)