10G PON

• 

Asymmetric10GPONAsymmetric10G-PONisspecifiedasXG-PON1:10Gbit/sdownstreamand2.5Gbit/supstream(nominallinerateof9.95328Gbit/sdownstreamand2.48832Gbit/supstream).Symmetric10G-PONisalsoproposedasXG-PON2with10Gbit/supstream,butwouldrequireburst-modelasersonONTstodelivertheupstreamtransmissionspeed.

FramingisG-PONlikebutusesdifferentwavelengthsfromG-PON(usingaWDMtoseparatethem)sothatG-PONsubscriberscanbeupgradedto10G-PONincrementallywhileGPONuserscontinueontheoriginalOLT.TheG-PONstandardisG.98.ThiscomparestotheIEEE802.3avstandardfor10G-EPONbasedonEthernet,whichhasstandardisedupstreamratesofboth1Gbpsand10Gbps.The10GigabitPONwavelengths(1577nmdown/1270nmup)differfromGPONandEPON(1490nmdown/1310nmup),allowingittocoexistonthesamefibrewitheitheroftheGigabitPONs.

ITU-TRecommendationG.987isafamilythatdefinesthisaccessnetworkstandard(referredtoasXG-PON).Itcomprisesfourrecommendations:

• G.987:10-Gigabit-capablepassiveopticalnetwork(XG-PON)systems:Definitions,Abbreviations,andAcronyms,2010.
• G.987.1:Generalrequirementsof10G-PONsystems(approved.Includesexamplesofservices,usernetworkinterfaces(UNIs)andservicenodeinterfaces(SNIs),aswellastheprincipaldeploymentconfigurationsthatarerequestedbynetworkoperators.
• G.987.2:Physicalmediadependent(PMD)layerspecification(approved2010-01-13,updated.DescribesaflexibleopticalfibreaccessnetworkrepresentinganevolutionarydevelopmentfromG.984.2,asymmetriconlyinthecurrentversion.
• G.987.3:Transmissionconvergence(TC)specifications(approved.
• G.988:ONUmanagementandcontrolinterface(OMCI)specification.(approved

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