GB/T 51126-2015 GBT镀分复用（WDM）光纤传输系统工程验收规范:英文

NATIONALSTANDARD

OFTHEPEOPLESREPUBLICOFCHINA

CodeforAcceptanceofWavelengthDivisionMultiplexing

（WDM）OpticalFiberTransmissionSystemEngineering

GB/T51126-2015

ChiefDevelopmentDepartment：MinistryofIndustryandInformationTechnology

ofthePeoplesRepublicofChina

ApprovalDepartment:MinistryofHousingandUrban-RuralDevelopment

ofthePeoplesRepublicofChina

ImplementationDate：May1，2016

ChinaPlanningPress

Beijing2019ChineseeditionfirstpublishedinthePeoplesRepublicofChinain2016

EnlisheditionfirstublishedinthePeolesReublicofChinain2019

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includingthisconditionbeingimposedonthesubsequentpurchaser.

ISBN978-7-5182-1098-5AnnouncementoftheMinistryofHousingandUrban-Rural

DevelopmentofthePeoplesRepublicofChina

No.827

AnnouncementoftheMinistryofHousingandUrban-RuralDevelopmenton

PublishingtheNationalStandardofCodeforAcceptanceof

WavelengthDivisionMultiplexing（WDM）Optical

FiberTransmissionSystemEngineering

CodeforAcceptanceofWavelengthDivisionMultiplexing（WDM）OpticalFiberTransmission

SystemEngineeringhasbeenapprovedasanationalstandardwithserialnumberofGB/T51126-

2015，andwillbeimplementedonMay1，2016.

AuthorizedbytheInstituteofStandardsandQuota，MOHURD，thiscodeispublishedand

distributedbyChinaPlanningPress.

MinistryofHousingandUrban-RuralDevelopmentofthePeoplesRepublicofChina

Aug27，2015

Foreword

AccordingtotherequirementsofdocumentJIANBIAO〔2011〕No.17issuedbytheMinistryof

HousingandUrban-RuralDevelopment-"NoticeonPrintingtheDevelopmentandRevisionPlanof

NationalEngineeringConstructionStandardsin2011"，thiscodeisdevelopedbythedraftingteam，

developedbyChinaInternationalTelecommunicationConstructionCorporationinassociationwithother

organizations.

BasedontheprofessionalstandardsofthePeoplesRepublicofChina，includingYD/T5122-2005

SpecificationsofEngineeringAcceptanceforLong-HaulOpticalWavelengthDivisionMultiplexing

SystemandYD/T5176-2009AcceptanceSpecificationforLocalOpticalFiberCableNetworkof

WavelengthDivisionMultiplexingSystem，thedraftingteamfinalizedthiscodethroughextensive

investigation，carefulsummarizationofpracticalexperienceandwidesolicitingofopinions.

Thiscodeconsistsof7chaptersand1appendix，including：generalprovisions，termsandsymbols，

equipmentinstallation，functioncheckandperformancetestingoftheequipment，performancetesting

andfunctioncheckoftheWDMsystem，as-builtdocument，andacceptance.

TheMinistryofHousingandUrban-RuralDevelopmentisinchargeoftheadministrationofthis

codeandInformationTechnologyisresponsibleforroutinemanagementofthiscode.ChinaInter-

nationalTelecommunicationConstructionCorporationisresponsibleforthespecificexplanation.Shall

therebeanyneedofchangeorsupplementtothiscodeduringitspracticalimplementationprocess，

pleaseposttheopinionsorsuggestionstoChinaInternationalTelecommunicationConstruction

Corporation（Address：No.A56Nanfangzhuang，FengtaiDistrict，Beijing，China，Postcode：100079）for

referenceswhilethecodeistoberevisedormodified.

Chiefdevelopmentorganization，co-developmentorganizations，chiefdrafters，chiefreviewers，

translatorsandtranslationproofreadersarelistedasbelow：

ChiefDevelopmentOrganization:

ChinaInternationalTelecommunicationConstructionCorporation

Co-DevelopmentOrganizations:

CITCCNo.4EngineeringCo.，Ltd.

GuangdongPlanningandDesignInstituteofTelecommunicationsCo.，Ltd.

GuangdongTelecomEngineeringCo.，Ltd.

ChiefDrafters:

LiShusenLiKaijunDingXueweiWanKunYeYinLiZhiguoGuoDong

ChiefReviewers:

WangJunhuaLiuQiZhangGuoxinZouHongqiangShenLiang

YangTierongYuanHaitaoChangNingHuangWeiminPanYaoxi

WeiXianhu

Translators:

LiZhengYinPeng

TranslationProofreaders:

WangFengwuMengYongyeWeiPengWangChaoGaoJunshiContents

1GeneralProvisions……………（1）

2TermsandSymbols……………（2）

2.1Terms…………………………（2）

2.2Symbols………………………（3）

3EquipmentInstallation（CableDuct，CableRack）……………（5）

3.1GeneralRequirements…………（5）

3.2InstallationofCableDuctandCablingRack………（5）

3.3EquipmentFrameandSubframeInstallation………（5）

3.4NetworkManagementEquipmentInstallation………（6）

3.5CableLayingandTerminating……………………（6）

4FunctionCheckandPerformanceTestingofEquipment………（9）

4.1PowerandEquipmentFunctionCheck……………（9）

4.2OMUPerformanceTesting………………………（9）

4.3ODUPerformanceTesting………………………（9）

4.4CombFilterPerformanceTesting…………………（10）

4.5OADMPerformanceTesting……………………（11）

4.6OTUPerformanceTesting………………………（11）

4.7T-MUXPerformanceTesting……………………（16）

4.8OLAPerformanceTesting………………………（17）

4.9OSAPerformanceTesting………………………（17）

4.10OSCPerformanceTesting………………………（18）

5PerformanceTestingandFunctionCheckoftheWDMSystem………………（19）

5.1SystemPerformanceTesting……………………（19）

5.2SystemFunctionCheck…………（20）

5.3AuxiliaryFunctionCheck………………………（20）

5.4NetworkManagementFunctionCheck……………（20）

6As-builtDocument……………（23）

7Acceptance……………………（24）

7.1PreliminaryAcceptance…………（24）

7.2TrialRun………………………（27）

7.3FinalAcceptance………………（27）

AppendixATestingRecordSamples……………（29）

ExplanationofWordinginThisCode……………（41）1GeneralProvisions

1.0.1Thiscodeisformulatedwithaviewtoensuringconstructionquality，unifyingacceptance

criterionofwavelengthdivisionmultiplexing（WDM）opticalfibertransmissionsystemandproviding

technicalbasisforfollow-upinspectionandacceptance.

1.0.2Thiscodeisapplicabletoopticalfibertransmissionsystemsusingeithersinglefiber

unidirectionalopenconventionalbanddenseWDMorsinglefiberunidirectionalopencoarseWDM.

1.0.3Notonlytherequirementsstipulatedinthiscode，butalsothoseinthecurrentrelevantonesof

thenationshallbecompliedwith.

·1·2TermsandSymbols

2.1Terms

2.1.1Conventionalband

Wavebandwithwavelengthof1530nm-1565nm.

2.1.2Longwavelengthband

Wavebandwithwavelengthof1565nm-1625nm.

2.1.3Nominalcentralfrequency（wavelength）

Frequency（wavelength）distributedinaccordancewithacertainfrequencyspaceinWDMsystem

usingfrequency193.10THz（vacuumwavelengthat1552.52nm）asreferencefrequency（wavelength）.

2.1.4Nominalchannelspacing

Nominalcentralfrequencydifferenceofadjacentchannels.

2.1.5Minimumsidemodesuppressionratio

Theratioofthelargestpeakofthetotalsourcespectrumtothesecondlargestpeak.Thespectral

resolutionofthemeasurementshallbebetter（i.e.theopticalfilterbandwidthshallbeless）thanthe

maximumspectralwidthofthepeak，asdefinedabove.Thesecondlargestpeakmaybenexttothemain

peakorfarremovedfromit.Inthisdefinition，thepeakvalueofspectrumseparatedbyclockfrequency

betweenthelargestpeakandthesecondlargestpeakisnotregardedasasidemode.

2.1.6Opticalamplifierspan

TransmissionspanbetweenadjacentOLAstations，orbetweenOTMstationandadjacentOLA

stationorbetweenOADMstationandadjacentOLAstationinordertoextendthetransmission

distancewithoutO/E（OpticsignaltoElectricsignal）conversion.

2.1.7Opticalmultiplexsection

TransmissionsectionbetweenadjacentOTMstations，orbetweenOADMstationandOTM

stationorbetweenadjacentOADMstations，providedwithfunctionsof3R（re-amplification，reshaping

andretiming）.

2.1.8Opticalchannel

Thechannelinopticalmultiplexsectionwhereopticalsignaltransmitsunidirectionally.

2.1.9Opticalpath

Allequipmentandmeasuresusedtotransmitspecificservicesignalsinbetweentheuserinterfaces

ofWDMequipmentatsignalsourceandsignaldestination.

2.1.10Opticalchannelpayloadunit

Informationstructurewhichadaptsuserinformationtobesuitbletotransmittingonoptical

channel.Theinformationofuser，overheadsofadaptedusersignalrateandrateofopticalchannel

payloadunit（OPU）aswellastheoverheadsofotherOPUsupportingusersignaltransmissionare

kk

combinedinthestructure.Theseoverheadsarespecificallyadaptiveones.ThecapacityofOPUis

k

distinguishedbyk，k=0，1，2，2e，3，4.

2.1.11Opticalchanneldataunit

InformationstructurewhichcontainsOPUandtherelevantoverheadsofODU（opticalchannel

kk

·2·dataunit）.ThecapacityofODUisdistinguishedbyk，k=0，1，2，2e，3，4.

k

2.1.12Opticalchanneltransportunit

Informationstructurewhichtransmitsoneopticalchanneldataunit（ODU）ononeormoreoptical

k

channelconnections，whichcontainsODUandtherelatedoverheads（FECandopticalchannel

k

connectionmanagementoverheads）ofopticalchanneltransportunit（OTU），characterizedbyframe

k

structure，bitrateandbandwidth.RateofOTUisdistinguishedbyk，k=1，2，3，4.Presently，twokinds

k

ofOTUhavebeendefined，oneistotallystandardizedOTUusedonlyforOTMinter-domaininterface

kk

（IrDI）orOTMintra-domaininterface（IaDI），theotherisOTU（OTUV）withpartiallystandardized

kk

functionsonlyusedforOTMintra-domaininterface（IaDI）.

2.1.13Opticalsupervisorychannel

PhysicalopticalpathwhichtransmitOTMoverheadsignals，andopticalsupervisorychannel

（OSC）doesnotpassthroughopticalamplifiers.

2.2Symbols

SymbolEnglishName

3RRe-amplification，Reshaping，Retiming

AISAlarmIndicationSignal

ALSAutomaticLaserShutdown

APDAvalanchePhotoDiode

APRAutomaticPowerReduction

BAAmplifier

CBRConstantBitRate

CWDMCoarseWavelengthDivisionMultiplexing

DPSKDifferentialPhaseShiftKeying

DP-QPSKDualPolarizationQuadraturePhaseShiftKeying

DQPSKDifferentialQuadraturePhaseShiftKeying

DWDMDenseWavelengthDivisionMultiplexing

EMElementManagement

ESErroredSecond

FECForwardErrorCorrection

LCTLocalCraftTerminal

LOFLossofFrame

LOPLossofPointer

LOMLossofMulti-frame

LOSLossofSignal

MPI-RMainPathInterfaceattheReceiver

MPI-SMainPathInterfaceattheSender

NRZNon-returntoZero

OADMOpticalAdd-dropMultiplexer

OCPOpticalChannelProtection

ODB-PSBTOpticalDuobinaryPSBT

ODCODUClockoftype"a"

ak

·3·ODUOpticalDe-multiplexerUnit

ODUOpticalChannelDataUnit-k

k

OLAOpticalLineAmplifier

OMSPOpticalMultiplexSectionProtection

OMUOpticalMultiplexerUnit

OOFOutofFrame

OSAOpticalSpectrumAnalyser

OSCOpticalSupervisoryChannel

OSNROpticalSignaltoNoiseRatio

OTMOpticalTerminalMultiplexer

OTNOpticalTransportNetwork

OTUOpticalTransponderUnit

PAPre-amplifier

P-DPSKPartialDifferentialPhaseShiftKeying

PINPositiveIntrinsic-Negative

PMDPolarizationModeDispersion

PM-DQPSKPolarizationMultiplexing-DQPSK

PM-QPSKPolarizationMultiplexing-QPSK

PSBTPhaseShapedBinaryTransmission

RZReturntoZero

RZ-DQPSKReturntoZero-DQPSK

ROADMReconfigurableOpticalAdd-dropMultiplexer

SDHSynchronousDigitalHierarchy

STMSynchronousTransportModule

T-MUXTransportMultiplexer

WDMWavelengthDivisionMultiplexing

·4·3EquipmentInstallation（CableDuct，CableRack）

3.1GeneralRequirements

3.1.1Flammable，explosiveandhazardoussubstancesmustnotbestoredintheequipmentroom.

3.1.2Positionanddimensionofholesshallmeetthedesignrequirements.

3.1.3Holesshallbetightlysealedbyincombustiblematerialswithfireresistancegradeequaltoor

higherthanthatoffloorslaborwall.

3.1.4Equipmentandmaterialsshallnotbeinstalleduntilbeingcheckedandacceptedonsite.

3.2InstallationofCableDuctandCablingRack

3.2.1Cableductandcablingrackshallbeinsallatedinaccordancewiththefollowingrequirements：

1Whileinstallingcableductandcablingrack，theirlayout，height，reinforcement，connectionmode

shallmeetthedesignrequirements；

2Theallowabledeviationforlayoutofcableductandcablingrackshallbewithin±50mm；

3Rowcableductandcablingrackshallbemountedinline，andtheallowablehorizontaldeviation

shallbewithin±3‰；

4Thefirmwaresshallbeconnectedfirmly，andstraightly，freefromobviousbends；thecable

supportshallbeinstalledregularlyandfirmly，withevenspacing；

5Maincableductshouldcrossoverrowcableductinthefashionofgradeseperation，viceversa；

maincablingrackshouldcrossoverrowcablingrackinthefashionofgradeseperation，viceversa；

6Inter-rowshoringsshallbeonthesamestraightlineandtheendsofsideshoringsshall

befixedonthewall；

7Hangersshallbeinstalledverticallyandfirmly；expansionboltholesshouldkeepawayfromthe

mainbeamoftheequipmentroom，ifnot，theholelocationsshallbeselectedatsidesurfaceand120mm

abovetheloweredgeofthemainbeam；

8Thepaintcoveredonsteelrackshallbeinperfectcondition，ifnot，therackshouldberepainted

withthepaintconsistentwiththeoriginal.

3.2.2Theopticalfibertroughshallbeinstalledinsuchawaytomeetthefollowingrequirements：

1Theopticalfibertroughshouldbeinstalledbyusingbrackets，andthebracketsarefixedonthe

beamofcableshoringorcableduc（ttray）；

2Theinstalledopticalfibertroughshallbefirm，straightandflat，freefromanyobviousbend；

3Theopticalfibertroughshouldbeashighastheupperedgeofthecableductssideplateofand

shallnotaffectcablelayingincableduct.Arcelbowsmaybeusedforconnectingmaincableductand

rowcableductattransitionpointandturningpoint；

4Thecoversontheopticalfibertroughshallbeeasyforopeningandclosing；trumpet-flarefiber

outletatthesideofthetroughinrowcableductshouldbereservedforconnecting.

3.3EquipmentFrameandSubframeInstallation

3.3.1Theinstallationofframeshallmeetthefollowingrequirements：

·5·1Whileinstallingframes，theirlayouts，fixing，reinforcement，anti-seismicreinforcement，

lightningprotectionearthingandequipmentprotectionearthingshallmeetthedesignrequirements；

2Theallowablepositiondeviationforinstalledframesshallbewithin±10mm；

3Framesshallbeinstalledregularlyandfirmly.Theallowableperpendiculardeviationshallbe

within±1‰；

4Theframesinarowshallbenexttoeachother，thegapbetweentwoadjacentframesshallnotbe

largerthan3mmandthedoorsshallbeopenedandclosedfreely；frontpanelsoftheequipmentframesin

thesamerowshallbeinaverticalplane，±3mmdeviationshallbeallowedifmeasuredattheunitofone

meter，and±15mmdeviationshallbeallowedforonerow；

5Theframeshallbefixedandreinforcedonthegroundbyusingexpansionbolts，andframetop

shouldbemountedandreinforcedontothetopbeamofrowcableduc（trowcablingrack）withclamps（or

L-shapedironware）；

6Ifequipmentisinstalledintheanti-static-flooredequipmentroom，theframepedestalshallbe

installedundertheequipmentAccordingtoequipmentinstallationrequirements；

7Thelocations，installationsequenceandmarksoftheequipmentterminalboards，shallmeetthe

designrequirements；

8Fiberconnectoronopticaldistributionframe（ODF）shallbeinstalledfirmlyinthesame

direction；thefiberfixingpartsinfiberstoragebaysshallbeinstalledcompletely；

9Frames，partsandtheirearthingwiresshallbefirmlyinstalled.

3.3.2Theequipmentsubframeshallbeinstalledinsuchawaytomeetthefollowingrequirements：

1theequipmentsubframeinstallationpositionsandinsideunitslotsshallbearrangedaccording

tothedesignrequirements；

2Thesubframeandframeshallbereinforcedfirmlyandregularlytomeettheequipment

assemblingrequirements；andanyinstallationorreinforcementmustnotaffecttheintegralformof

frameandsmoothopening/closingofframedoor；

3Thegadgets，partsandaccessoriesofthesubframeshallbetotallyassembled，andtheearthing

wireshallbereliablyconnectedwiththeearthingterminal；

4Pluginsshallbewellcontactedwithinthesubframe，anddeadslotsshouldbeequippedwith

dummyunitorblankpanel.

3.4NetworkManagementEquipmentInstallation

3.4.1Fornetworkmanagementequipmentinstallation，theposition，powersupplymodeandpower

supplyprotectionmodeshallmeetthedesignrequirements.

3.4.2Fornetworkmanagementequipment，theoperationterminal，displayandotherauxiliary

equipmentshallbeplacedinastableandregularway.

3.5CableLayingandTerminating

3.5.1Thelayingofopticalfibercableshallmeetthefollowingrequirements：

1Thefollowingaspectsshallmeetthedesignrequirements，includingroutingofopticalfiber

jumpercable，sheathcolorofdifferentopticalfibercables，arrangementoftransmittingandreceiving

signalsfordifferentopticalfiberjumpercables；

2Theopticalfiberjumpercableshouldbelaidwithinopticalfibertroughandshallremain

·6·straightandfreefromobvioustwisting；iftheopticalfibertroughisnotavailable，protectivetubeshallbe

additionallyusedtosafeguardtheopticalfiberjumpercable，theprotectivetubeshallbestraightly

bundledtocableductorcablingrack；

3Threadedprotectivetubesshouldbeadoptedtoprotecttheopticfiberjumpercablesfromthe

trough；

4Opticalfiberjumpercableshouldbewellbundledbyusingstingsorself-adhesivebandages.

Nyloncabletiesmustnotbeusedtodirectlybundlenon-tubedtheopticalfibercable；

5Redundancyofopticalfiberjumpercableshallbereservedatmovablejoints，andtheredundant

lengthshallbereserveddependingonthelocationofthejointsbutshouldnotexceed2m.Theredundant

lengthshallbereeledwitharadiusofnolessthan40mm；

6Opticalfiberjumpercableshallbelaidintheconditionofawholeandintactcable，andnojoints

mustbeallowed；

7Theopticalfiberjumpercableshallbeaffixedwithlabelsatbothendsinaregularmannerand

thelabelshallbeclear，exactandstandardized.

3.5.2Electricalsignalcablelayingandterminatingshallmeetthefollowingrequirements：

1Thegaugeandlayingrouteshallmeetthedesignrequirements；

2Cableslayingincableductorcablingrackshallbestraightandsmoothwithoutobvious

twisting，andcablesshallbetiedfirmlywithadequatetightness；

3Cableredundancyshallbeleftterminals，andtheredundantlengthforbundledcablesshallbe

consistent；

4Cableshallbestrippedinsuchadimensiontomatchwiththecounterpartofplugandsocket；

thecopperwireatthetailendoftheterminatedplugandterminatedsocketshallnotbeexposed；

5Corewiresshallbeweldedtogetherregularlyandfirmlywithappropriatetinsolder，and

weldingspotshallbesmoothandsolidwithoutoverlaps；

6Strippinglengthofshieldingscreensshallbeconsistent，andgoodcontactmustbeguaranteed

betweenshieldingscreenandtheouterconductoroftheterminal；

7Theassembledplugandsocketofcablesshallbeequippedwithcompleteauxiliariesand

assembledrightandfirmly.

3.5.3Powercablelayingandterminatingshallmeetthefollowingrequ