Tej zaum koj yuav tsis paub tias "PON" yog dab tsi (feem ntau nyeem ua "pang"), tab sis koj yuav tsum tau hnov txog "fiber rau tsev".
Tej zaum koj yuav tsis paub dab tsi "ONU” yog (feem ntau nyeem “ONU"), tab sis thaum koj qhib lub thawv hluav taws xob tsis muaj zog hauv koj lub tsev, koj yuav tsum pom "lub thawv me" uas muaj fiber ntau optical. Qhov no "lub thawv me" yog lubONU(Optical Network Unit, optical network unit), feem ntau hu ua "ONU". Niaj hnub no tus protagonist —— "PON" (Passive Optical Network, passive optical network), yog tus yuam sij kom ua tiav qhov kev siv fiber ntau, yog "kawg mais" optical fiber ntau kis tau tus mob ntawm lub network thiab cov neeg siv.
Wlub kaus mom yog PON?
Txhua tsev neeg kho qhov muag fiber ntau, txuas tom qab lub network loj, cia peb ua raws li cov khoom siv fiber ntau, taug qab cov kwj deg, tshawb xyuas ua ke. Optical fiber txuas nrog lubONUlos ntawm cov splitter hauv cov hluav taws xob tsis muaj zog zoo / txoj hauv kev, uas tuaj yeem faib cov teeb liab kho qhov muag rau ntau txoj hauv kev hauv ib qho kev faib ua feem. Lub teeb liab kho qhov muag nkag mus rau qhov muag pom qhov sib cais los ntawm qhov chaw kho qhov muag kabOLT(Optical Line Terminal). CovOLT, ONU, thiab nruab nrab ntawm ob "kev sib kis" ODN (Optical Distribution Network, optical tis network) ua lub PON network. Ntawm:
OLTyog tus neeg teb xov tooj-sab ntaus ntawv lub luag haujlwm rau kev xa cov ntaub ntawv rau cov lag luam qib siab.
ONUyog ib tug neeg siv-sab ntaus ntawv lub luag hauj lwm rau tau txais cov ntaub ntawv xa los ntawmOLTthiab ncaj qha rau tus neeg siv.
Peb tuaj yeem tau txais kev nkag siab luv luv ntawm PON network architecture raws li daim duab hauv qab no.
Shenzhen HDV Photoelectron Technology Ltd. yog tus kws tshaj lijONUcov chaw tsim khoom siv kuj yog kev sib txuas lus ntseONUthiab cov chaw tsim khoom lag luam, peb lub tuam txhab tam sim no muag ntau yam khoom siv sib txuas lus sab saud, xws li: Fiber media converter, Ethernethloov, OLTkhoom siv,ONUkhoom siv thiab lwm yam. Yog tias koj xav paub ntau ntxiv txog kev sib txuas lus thev naus laus zis, txais tos hu rau peb txhua lub sijhawm.
