OLT yog kev tswj hwm kawg, ONU yog lub davhlau ya nyob twg; ONU' s kev lag luam qhib tau faib los ntawm OLT, thiab ob yog kev sib raug zoo ntawm tus tswv-qhev. Hauv qab ib OLT, ntau lub inus tuaj yeem raug dai los ntawm lub tshuab splitter.
OLT paub txog ob lub zog: ntws los ua kom tiav cov uplink ntawm PON network; downstream xa thiab xa cov ntaub ntawv xav tau rau txhua tus neeg siv ONU lub davhlau ya nyob twg los ntawm ODN network.
Kev siv sib txawv ntawm ONU kev nkag mus rau hauv FTTx network sib txawv, piv txwv li, FTTC (fiber rau lub nkhaus): ONU muab tso rau hauv chav chaw nruab nrab ntawm lub zej zog; FTTB (fiber ntau rau lub tsev): ONU muab tso rau hauv lub thawv hlws ris hauv tsev ntawm txoj kev hauv tsev; FTTH (fiber ntau rau tsev): ONU muab tso rau hauv tus neeg siv khoom hauv tsev.
Ont yog lub chaw ua haujlwm ntawm FTTH, feem ntau hu ua" lub teeb miv" ;. Ont yog qhov kho qhov muag network davhlau ya nyob twg, uas tau thov rau tus neeg siv khoom kawg, thiab ONU yog lub khoos phis tawm kho qhov muag. Tej zaum yuav muaj lwm txoj kev sib txuas ntawm nws thiab cov neeg siv xaus. Ont yog qhov tseem ceeb ntawm ONU. OLT yog kev tswj hwm kawg, ONU yog lub davhlau ya nyob twg; ONU' s kev lag luam qhib tau faib los ntawm OLT, thiab ob yog kev sib raug zoo ntawm tus tswv-qhev. Hauv qab ib OLT, ntau lub inus tuaj yeem raug dai los ntawm lub tshuab splitter.
ODN yog lub chaw xa khoom hluav taws xob, cov xaib muab faib mus rau sab nrauv, uas yog cov xaib ntawm lub cev xa tawm ntawm OLT thiab ONU. Nws lub ntsiab haujlwm yog ua kom tiav qhov kev xa ob ntawm ob txoj kev sib txuas ntawm lub ntsuas hluav taws xob. Nws feem ntau yog ua los ntawm cov hlua hluav taws xob fiber cable, kho qhov muag sib txuas, kho qhov muag thiab lub cuab yeej txhawb nqa tau nruab thiab txuas cov cuab yeej no. Qhov tseem ceeb tshaj plaws yog cov splitter.
HTF tuaj yeem muab cov qhua tuaj noj mov ntau yam ntawm FTTH cov khoom thiab Kev daws teeb meem
