organizationsaccordingtotherequirementsofDocumentMinistryofHousingandUrbanandRuralDevelPlanofNationalEngineeringConstructionStandardsin2011.Inpreparingthiscode,conscientiouslyreviewedtheapplicatitechnologies,solicitedopinionsfromrelevantorganizationsandexpertsnationwide,aThiscodecompriseselevenchapterswithmaincontentsasfollows:symbols,systemconfigucablelinedesign,performanceparametersofdigitaltransmissionsylandingstationanditsauxiliaryfacilities,instalsystem,designofauxiliarysystems,andTheMinistryofHousingandUrban-RuralDevelopmentisintheMinistryofIndustryandInformationTechnologyiMobileGroupDesignInstituteCo.,Ltd.isresponDuringtheprocessofimplementingthiscode,users'feedbackandsuggestions,wbeprovidedtoChinaMobileGroupDesignInstituteCo.,Ltd.(Address:District,Beijing,China,Postcode:100080)andsuchwillbeChiefdevelopmentorganization,participatingdevelopmentorganizations,chiefdraftingstaffandchiefreviewers,translatorsandtranslationproofreaderarelistChinaMobileGroupDesiChinaSubmarineCableConstShanghaiPostsandTelecoChinaInformationTechnologyD 6PerformanceParametersofDigitalTra 8Installation systemconstructionandtoensurethatsubmarinecableprojectreliable,economical,rational,energy-saving,andenvironment-friendlyandcompliantwithreleyantnati1.0.2ThisCodeisapplicabletotheentransmissionsystems,andrelevantauxiliarysystemswithintheimproveeconomicefficiencyandreducecostwhereverpossiandresourcesharingtomeettherequirementofbuildingareso1.0.5Equipmentandmaterialsusedinthedesignshallmeettherequirementsofrandindustrialtechnicalstanorabove,theequipmentshallmeetseismicperformance1.0.7DesignofsubmarinecablesystemsshallcCode,butalsothoseinthecurrentrelevantonesofthenatioAsubmarinesystemthaAwallbuiltneartheshoretobpairoffibers.2.1.9AnchorageareaApowersupplysystemthatusestheloopformedbToproposeoneormorecableroutesthataretechnicalltopologicaldesignofthesubmarinecablesystemandthrgeologicalsampling,geophysicalscomprehensiveevaluationandcomparisresistance(coneresistance,sidefrictionresistance,etc.vethephaseinformationoftf放大的自發(fā)輻射背景差錯塊比誤碼率BeginOfLife壽命初始海底分支單元相干光時域反射儀光電纜終端箱雙層鎧裝光纜(Differential)BinaryP(差分)二相相移鍵控?cái)?shù)據(jù)通信通道數(shù)據(jù)通信網(wǎng)差分群時延差分相移鍵控(差分)正交相移鍵控?cái)?shù)字信號處理EndOfLife壽命終了QForwardErrorCorrectiOpticalAdd/DropMultiplexerOpticalTransportNetworkPolarizationMultiplexing-(Differential)Binary前向糾錯線路監(jiān)測設(shè)備輕型光纜輕型保護(hù)光纜光分插復(fù)用器光纖配線架光信噪比光時域反射儀完全標(biāo)準(zhǔn)化光通路傳送遠(yuǎn)供電源設(shè)備偏振復(fù)用(差分)二相相移偏振復(fù)用(差分)正交相移巖石鎧裝光纜單層鎧裝光纜同步數(shù)字體系海洋接地裝置嚴(yán)重誤碼秒比海底光纜線路終端設(shè)備IP電話波分復(fù)用3SystemConfigurationand3.1.1Accordingtowhethertherearesubmarinerepeate3.1.2Arepeateredsubmarinecablesystemshouldbecoequipment,opticalsubmarinerepeater,BU,gainequalizer,subBU,submarinecable,submarinecablejoint,landoptical/power3.1.4AccordingtothetypeofthetermOTU1,OTU2(e),OTU3,OTtherequirementslistedinTTable3.2.2Opticalchan4DigitalTransmissionSyste4.1.2Whendesigningthesystem,considerationssharealizeoptimaldesign.Iftechnologyallows,arepeaterl4.2.1Forarepeaterlesssubmarinecablesystem,theaccordingtothedistancebetweenlandingstat4.2.2Forarepeaterethecost,mid-andlong-termcap4.2.3Forarepeateredsubmarinecablesystem,state-ofadopted,designcapacityshallbedeterminedaccordingtofi4.3.1Asubmarinecablesystemshouldadopttwobasictopologiandbranchtopology(Figure4.3.1-2).664.3.2Whenselectingthetopology,thelandingstations'geographicalrelations4.4.1Submergedequipmentsmayinclud4.4.2Inadditiontomeetingthedimensionalrequiremeninstallationship,thewaterpressureresistancerequiremeprojectislocated,andthehfollowingrequirements:2ImportantcomponentsoftherepeaterandBUshallbeconfiguredinredundancytom5Basedonthetopologyofthepowerfeedingsystem,BUsshallh7Gainequalizersmayprovi1Terminalequipmentshallbetechnicallya2Equipmentsuppliershallbecapableofprovidingequipmentupgrade,nupgrade,technicalR&.D,andafter-saleservi4Terminalequipmentshallmeetrelevant5TerminalEquipmentshallbecompliant4.5.2Forrack-mountedequipment,theheightoftherackshouldbe2,600mm,2,200mm,or2,000mm,thedepthshouldbe300mmor600mmroomshouldbeofthesame4.5.3Theoverallstructureofandexpansionoradjustment;hardwareshallhaveaandrigidity.TheelectromagneticcompatibithecurrentnationalstandardofElectromagneticCompatibilityRequirementandMeasurementMethodsforTelecommunicationNetwcorkEquipmentGB19286.4.5.4TerminalequipmentfopticalpowerandOSNRofeachchannelandthedatashpowerandFECdataofeatoleranceandDGDtolerancWhenthefiberiscutoff,ortautomaticpowerreductionprocessshallbelaunchedandtheprocess_shallbeabletobere-launc4.6.1Selectionofopticalfibersshallbebasedonthecombinationofsoftheterminalequipmen3Non-zerodispersion-shiftedsingle-modeopticalfiber;and4.7.1Thedispecompensationatthetransmitterandpostmaybefixeddispersion2Anincoherentdetecompensationthroughacomblineandthecompensationmechanismofterminalequipment4.7.2ThedesignofanincoherentdetectionWDMdigitaltransmistheimpactofPMD,andtheDGDpenaltyshallbewithinthetoleranceoftheperformancebudget.4.7.3Theapplicationofpowerequalizationtechnologiesshallcomppowerequalization,andsingle-channelpowerequalizatpersonalinvolvement;2ForarepeateredWDMdigitaltransmissionsystem,powerequacombiningtheinstallationofgainequalizersalon4.7.4Basedontthestate-of-the-artFEC,codingmodulation,andreceivertechnosystemsmayadoptpre-amplifiers,post-amplifie4.8.1Componentsofsubmergedequ4.8.2Withinthedesignlifeofthesystem,thenumberofrepairsrequiringshipintervention,dueto4.9.1Themaintenancemarginforasystemthelossofeachrepairshallincludetheattenuationolengthofinsertedsubmarinecabl3Themaintenancemarginofa5.1.1Forasubmarine5.1.2Cableroutedesktopstudyshallbebasedonthedesforroutesurvey,submarinecaccordingtotheprinciplesoftechnicalfeasibility,econom1Informationonthenaturalenvironment3Informationonthefaulthisthereof.5.1.4Theselectedrouteofsubmari1Fullconsiderationshallbegiven2Areaswithhazard3Offshoreoilandgasfields,mining|areas,oilandgaspareas,naturalreserves,militaryactivityareas,andman-madewastesshouldbeavoided;4NavigationroutesshouldbecrossedverticallplansanddevelopmentashallbeincompliancewithrelevantrequirementsofthecurrentprofessiofCommunicationsLineEngineeringYD5102.5.1.7Theoutlineofthecablerout5.2.1Beforeconductingroutesurvey,theinstalla5.2.2Theroutesurveyshallmakeclearmeteorologicalandhydrologicalenvironment,marineplanninganddevelopmentactivities,andconditionsandconfirmtheoptimalcinstallation,etc..2Conditionsofthesea3Thestructuralfeatures,spatialdistributionandphysica5Marinehydrological5.2.4ThescopeoThewidthofthesurveyedcorridorshouldbe500mfortheinssection,andevery2km-5kmfortheinshoresection;otherwithrelevantprovisionsofthecurrentnationalstandardofCodeforSubmarineCablePipelineR5.3.2Bycablesprotected(LWP)cable,singlearmored(SA)cable,doublearmored(DA)cable,androckarmored(RA)therequirementsofsurfacelay2ArmoredcabmechanicalstrengthshallmeettherequirementcorrespondingtechnicDCresistanceofthepowerconducsubmarinecabletransmissionsystem5.3.4Submarinecablesare1Cablejointsshallensurethecontinuityoftheoptical,electrical,andmechanicalopticalcableandmeetcertainwater-proofandpressure-proofrequirements;2Cablejointsshallbeapplicabletoth3Themechanicalstrengthatjointingpointsofcablejointsshallbenolessthan5.3.5Beforeinstall5.3.6Beforeinstalthroughaprocessofassembly,testing,shiploading,5.3.8Thepre-laygrapnelrunandrouteclearanceshallbeincom1Forthegrapnelrun,theoperat3Thewidthoftherout4Obstaclesremovedshallbe5.3.9Therearetwowaysfowayofinstallationshallbesprotectionrequirements,andincompl5.3.12Thedeviationbetweenthecablepositithefollowingrequire5.3.13Whereasubmarinecablecrossesasubma5.3.14Post-layinspectionsshallbeconductedforburiedsections,andpost-layburiaforsectionsthatareconfirmedthroughtheinspectiontohavenspecialattentionshallbepaidintheinspectiontosectionspipelinescross,placeswheretheploughisreleasedandlifted,andsectionf2Cablesshallbeburiedinthelandingsection;t5.4.1Afterland2ThemetalreinforcementmembersofopticalcablesandtheshieldinglayerofpowercablesshalconnectedviaBJtothegroundinge5.4.2Cablefromthebeachmanopticalcableandpowerfeedingcable/sea-earthcableunitlengthshallnotexceedthatofthepower5.4.4TheinstaHationofcablebetweentwithrelevantstipulationsinthecurrentprofessionalstandardof5.4.5Installation'ofthepowerfeedingcableandthe2Dedicatedcablejointsandthec3Powerfeedingcablesandtheircablejointsshallbearhighvoltage(HV)warning4Inthecablelandingstprotectionground,andpower5.4.7Non-flamm6.1.1Repeaterlessinsulationresistance,etc.shallbeprovided,whichshaltheaverageattenuationcoefficientof2Thedispersioncoe3TheDGDofthecablelineshallbenomorethantheproductofthesquarerootofcabl4Whentestedwith500VDC,the6.1.2Repeateredsubmarinecablelineparameresidualchromaticdispersion,insulationresistance,DCresistance,etc.shallbeprovided.1TheC-OTDRtestcurveofthecablelinesh2Theresidualchromdispersionofnormalcablespansandthshallbenomorethan±10%;3Whentestedwith500V4_TheDCresistanceofthecablelineshaconductorandtheresistanceofsubmergedequipment,andthe6.2.1Theperformanceparametersofarepea1ForaWDMsubmarinecablerepeaterlessshouldrespectivelycomplywithrelevantstipulationsstandardofCodeforDesignofWavelengthDivisionMultiplexing(WDM)OpticalFiberTransmission2ForanSDHrepeaterlesssubmarinecabletransmissionsystem,bitshouldcomplywithrelevantstipulationsinthecurrentprofessionalstandardofCodeforDesiSynchronousDigitalHierarchyOpticalFiberTransmissionSystemsEngineeringYD5095.1ThejitterperformanceshallcomplywithreleofCodeforDesignofWavelengthDivisionMultiplexing(WDM)OpticalFiberTransmissionSystems2PathBERequalsBBERdividedbythesizeoftheblockofthecorrespondentbitrate;BOLcommissioningQvalueallowsasufrperformancelimitinItem2ofthisarticle.7RequirementsforLanding2Transportationiscon4Thereisnolargefactory,mineorsubstation,transformers,andnoeart7.0.3Anewlandingstationshallhaveequipmentrooms,powerrooms,generatorrooms,poweroomsandauxiliaryro7.0.4Theareaoftheandtheactualdemandofthepr7.0.5OtherconditionsoftheequipmentroomshallmeettherestandardofCodefortheEngineeringandDesignofCommunicationsBuildingsYD5003.7.0.6Auxiliaryfacilitiesoflandingstatearthequipmentforpow7.0.7Thedesignofabeachmanh2Abeachmanholeshallhaveprotectiveground,andtheearthresistance7.0.8ThedesignofacommunicationductshallnationalstandardofDesignCodeforCommunicationConduitandPassageEngineeringGB50373.7.0.9Thedesignoftheseaearthforpowersupplyshallb2Whenthecablelandingbeachisnotsuitablefor8.0.2TheNetworkManagementSystemEquipmentof8.0.3TheinstallationoftermcurrentprofessionalstandardsofCodeforDesignofWavelengthDivisionMuluiplexing(WDM)OpticalFiberTransmissionSystemsEngineeringYD5092andCodeforDesignofSynchronousDigitalHierarchyOpticalFiberTransmissionSystemsEngineeringYD5095.f9.0.4ForsubmarinecablesystemsofaP-to-Ptopology,thedesignofthepowerf9.0.5Forsubmarinecablesystemofabranchtop1Innormaloperation,double-en9.0.6Thepowerconverterofthepowerfeedingsystemshallbe“1+1”co2Voltagedropoftherepeater;4Marginalvoltagedropforrepai5Earthpotentialdifference,where,earthpotentialdifferenceperKmcouldbebetween0.3Constant-currentout9.0.8PFEshallbeabletoobtaindataoftheoutputvoltage,outpearthsystem,andthevoltagedifferencebetwnetworkmanagementsyste9.0.9PFEshallhavethefunctionofmodulatinge10DesignofAuxiliarySystems10.0.1Networkmanagementsystemshallmeetthetechnicalrequirementsofthespecificprojshallmeetthefunctionalrequirementofroutineoperation10.0.2Forarepeaterlesssubmarinecabletransmissionsy1ThefunctionsandperformanceofthenetworkmanagementsystemofaWDMrepeatercomplywithrelevantstipulationsinthecurrentprofessionalManagementSystemofWDMOpticalFiberCommunicationProjectsYD/T5113andCodefortheDesignofNetcorkManagementSystemofSDHOpticalFiberCommunicationProjectsYD/T5080,2Foranewproject,thenetworkmanag3Whereequipmentfromasupplierofexistin5Thedatacommunicationnetworkofthenetworkmanagementsystemshallc10.0.3