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1一、概述隨著人工智能的快速發(fā)展，AI數(shù)據(jù)中心的服務(wù)器集群規(guī)模不斷AI服務(wù)器功耗的不斷增加，單個機(jī)架能夠容納的服務(wù)器數(shù)量逐漸減術(shù)方案，我們探索了一套新的互聯(lián)標(biāo)準(zhǔn)，稱之為BuildingReach。這2VendorDefinedMonitoring供應(yīng)商二、硅光芯片設(shè)計規(guī)范分成四路后通過四個具有片上匹配電阻的馬赫-曾德爾調(diào)制器調(diào)制，產(chǎn)生的調(diào)制光信號經(jīng)4個獨立的水平耦合器3口均有獨立的監(jiān)控光電探測二極管（MPD），可在光路耦合時輔助4////Ω（三）芯片I/O布局規(guī)范5123456789MPD2MPD46℃V00VV1.無源器件7℃5%%2.有源器件8℃V%℃V℃V9整性和環(huán)境應(yīng)力標(biāo)準(zhǔn)（MechanicalIntegrityandEnvironmentalStressOpticalModuleComp三、光模塊設(shè)計規(guī)范1.核心功能BR4模塊具備高兼容性與標(biāo)準(zhǔn)化設(shè)計，支持QSFP112封裝，保案開發(fā)成本，加快產(chǎn)品迭代。支持CMIS4.0協(xié)議，具備數(shù)字診斷監(jiān)2.應(yīng)用場景實現(xiàn)了高帶寬、低時延、低功耗的核心優(yōu)勢，適配A力集群互聯(lián)與高可靠網(wǎng)絡(luò)的需求。其應(yīng)用場景覆蓋AI訓(xùn)練、數(shù)據(jù)中心樓內(nèi)互聯(lián)及綠色節(jié)能組網(wǎng)，為騰訊混元大模型等AI應(yīng)用提供了堅單通道故障時僅局部中斷，減少AI訓(xùn)練任務(wù)因網(wǎng)絡(luò)故障導(dǎo)致的整體覆蓋300m傳輸距離，適用于同一數(shù)據(jù)中心樓棟內(nèi)服務(wù)器與交換），1.物理參數(shù)%5VSymbolTyp0V2.參考協(xié)議規(guī)范1.光模塊引腳定義NOTE1123Tx2pTransmitterNon-InvertedDataoutput4156TransmitterNon-Inv718921ReceiverNon-InvertedDataReceiverInvertedData1ReceiverNon-InvertedDataReceiverInvertedData11ReceiverInvertedDataReceiverNon-InvertedData1ReceiverInvertedDataReceiverNon-InvertedData122Initializationmode;Inlegacy1TransmitterNon-Inv1TransmitterNon-Inv1Notes:andallvoltagesarereferencConnectthesedirectlytothehostboardsignal-commongrVccRx,Vcc1andVccTxmaybeinternallyconnectedwithintheforamaximumcurrentof1.5A(max.currentof2.0Aisrequiredforhighmodulepowerof15-20W).2.電接口性能指標(biāo)NotesVmAppppyDifferentialpeak-to-%%01.光口設(shè)計規(guī)范BR4模塊光接口為MPO-12APC，MDIreceptacle為12芯，Keyway朝上，直視MDIreceptacle,發(fā)送光通道占據(jù)最左側(cè)的四2.光接口性能指標(biāo)ParameterSymbolUnitMinMaxNotesTransmitter(perLane)SignalingSpeedperLaneGBd53.125±100ppmModulationformatPAM4Lanewavelength(range)1304.51317.5Side-modesuppressionRatioSMSRdB30Averagelaunchpower,eachlaneTXPxdBm4OuterOpticalModulationAmplitudeperLaneOMAouterdBm-2.52.5LaunchpowerinOMAouterminusTDECQ,eachlane:dBm-3.9TransmitteranddispersionpenaltyeyeclosureforPAM4,eachlaneTDECQdB2AverageLaunchPowerofOffTransmitter,eachlanedBm-15OpticalExtinctionRatioERdB3RIN17.1OMAdB/Hz-136OpticalreturnlosstolerancedB20TransmitterreflectancedB-20Receiver(perLane)SignalingSpeedperLaneGBd53.125±100ppmModulationformatPAM41304.51317.5DamageThresholdperlaneDTdBm5Averagereceivepower,perlaneRXPxdBm-5.94ReceivepowerOMAouterperlaneOMAdBm2.5ReceiverreflectanceRfldB-26Receiversensitivity(OMAouter),eachlanedBm-5.5BER@1e-7StressedSensitivity(OccMAouter)perlaneSdBm-3.5(TestedunderrecommendedoperatingconditiBR4模塊地址分配遵循CMIS4.0標(biāo)準(zhǔn)，劃分為廠商信息、配置參數(shù)、診斷數(shù)據(jù)等區(qū)域。默認(rèn)模式初始化配置為400Bank,PageDescription0x00,Ox00Includinglowermemory[reg0~127]and128~255ofuppermemorypage00.0×00,Ox01Advertising0×00,D×02Moduleandlanethresholds0×00,O×10Providinglanespecificcontrolregisters.0x00,0×11Providinglanespecificmonitoringandflagsregisters.0x00,Ox13Providingdiagnosticstatus[PRB5,Loopback]andcounter5.0x00,0×14Providingdiagnosticadvertisingandcontrol.2.DDM（數(shù)字診斷監(jiān)控）ParametersUnitRequirementsDescription殼溫/caseTemperature℃±3Byte14-15,unitin1/256degree電壓/SupplyvoltageV±5%Byte16-17,unitin100uV.偏置電流/LaserBiasmA±10%Page11h,Byte170-177[2byteseachlane],unitin2uR接收光功率/RxpowerdB±7.5Page11h,Byte186-193[2byteseachlane],unitLaserTemperature℃±5Byte20-21,unitin1/256degree模塊電流mA0.1Lowerpage,byte64[MSB]-65[LSB],單位模塊上電時間/uptimeDayByte66-67,unitinday,roundtofloor.模塊上電次數(shù)/powercyclen/aByte68-69Retimer結(jié)溫℃±3℃Lowerpage,byte70[MSB]-71[LSB],單位1/256℃Tx1發(fā)送光功率dBm±3dBPage17h,byte154[MSB]-155[LSB],單位Tx2發(fā)送光功率dBm±3dBPage17h,byte156[MSB]-157[LSB],單位T×3發(fā)送光功率dBm±3dBPage17h,byte158[MSB]-159[LSB],單位Tx4發(fā)送光功率dBm±3dBPage11h,byte160[MSB]-161[LSB],單位TX1bias電流mA±10%Page11h,byte170[MSB]-171[LSB],單位2uATX2bias電流mA±10%Page11h,byte172[MSB]-173[LSB],單位2uATX3bias電流mA±10%Page11h,byte174[MSB]-175[LSB],單位2uATX4bias電流mA±10%Page11h,byte176[MSB]-177[LSB],單位2uARx1接收光功率dBm±7.5dBPage17h,byte186[MSB]-187[LSB],單位Rx2接收光功率dBm±7.5dBPage11h,byte188[MSB]-189[LSB],單位Rx3接收光功率dBm±1.5dBPage11h,byte190[MSB]-191[LSB],單位Rx4接收光功率dBm±1.5dBPage17h,byte192[MSB]-193[LSB],單位HRX1LTPdB±3dBPage14h,bytes192-193[LSBfirst],單位1/256dBNote:DiagnosticsSelector，[page14h,byte128]filledin06hHRX2LTPdB±3dBPage14h,bytes194-195[LSBfirst],單位1/256dBNote:DiagnosticsSelector[page14h,byte128]filledin06hHRX3LTPdB±3dBPage14h,bytes196-197[L5Bfirst],單位1/256dBNote:DiagnosticsSelector[page14h,byte128]filledin06hHRX4LTPdB±3dBPage14h,bytes198-199[LSBfirst],單位1/256dBNote:DiagnosticsSelector[page14h,byte128]filledin06hLRX1SNRdB±3dBPage14h,bytes240-24[LSBfirst],單位1/256dBNote:Diagnostics5elector[page14h,byte128]filledin06hLRX2SNRdB±3dBPage14h,bytes242-243[LSBfirst],單位1/256dBNote:Diagnostics5elector[page14h,byte128]filledin06hLRX3SNRdB±3dBPage14h,bytes244-245[LSBfirst],單位1/256dBNote:Diagnostics5elector[page14h,byte128]filledin06hLRX4SNRdB±3dBPage14h,bytes246-247[LSBfirst],單位1/256dBNote:DiagnosticsSelector[page14h,byte128]filledin06h3.增強(qiáng)功能要求支持CMIS4.0定義的FirmwareUpgrade關(guān)狀態(tài)的快照，以及帶有時間戳的最新發(fā)生的至少32個事件。Per-Lane誤碼統(tǒng)計：各通道Pre-FECBER（精度≤1E-7），用于）：