Niaj hnub no, nyob rau hauv cov nroog kev sib raug zoo, cov koob yees duab soj ntsuam tau pib nruab rau hauv txhua lub ces kaum.Peb yuav pom ntau lub koob yees duab soj ntsuam hauv ntau lub tsev nyob, tsev ua haujlwm, khw muag khoom, tsev so thiab lwm qhov chaw los tiv thaiv qhov tshwm sim ntawm kev ua txhaum cai.
Nrog rau kev txhim kho tsis tu ncua ntawm kev lag luam thiab thev naus laus zis, tib neeg txoj kev paub txog kev saib xyuas kev ruaj ntseg yog nce ntxiv, thiab kev saib xyuas kev ruaj ntseg yuav tsum muaj nyob rau txhua qhov chaw.Txawm li cas los xij, qhov nyuaj ntawm txoj kev loj hlob hauv nroog ua rau kev saib xyuas ntawm cov txheej txheem kev nkag mus tsis tuaj yeem ua tau raws li qhov yuav tsum tau ua, thiab PON tau txais yuav.Cov kev saib xyuas rau kev siv network tau maj mam nrov.
Raws li cov khoom siv tseem ceeb hauv PON system, kev xaiv ntawm ONU yog qhov tseem ceeb, yog li ONU twg zoo dua thiab yuav xaiv li cas?
ONU yog cov khoom siv kawg rau PON daim ntawv thov thiab cov khoom siv hluav taws xob siab thiab cov nqi siv hluav taws xob tsim nyog rau kev hloov pauv ntawm "tooj liab cable era" mus rau "optical fiber era".Nws plays lub luag haujlwm txiav txim siab hauv kev tsim kho network.
ONU yog ib qho chaw kho qhov muag, uas siv lub tshuab fiber ntau txuas mus rau lub chaw haujlwm hauv nruab nrab OLT los muab kev pabcuam xws li cov ntaub ntawv, suab, thiab video.Nws yog lub luag haujlwm kom tau txais cov ntaub ntawv xa los ntawm OLT, teb rau cov lus txib xa los ntawm OLT, buffering cov ntaub ntawv thiab xa mus rau OLT.Nws yuav tsum tau rhiab heev thiab yog yooj yim rau siv.
ONUs tau muab faib ua ONUs thiab ONUs nrog PoE.Tus qub yog ONU ntaus ntawv feem ntau thiab feem ntau siv ONU.Lub tom kawg muaj PoE muaj nuj nqi, uas yog, nws muaj ob peb PoE interfaces.Koj tuaj yeem txuas cov koob yees duab saib xyuas los ntawm cov interfaces no.Lawv ua haujlwm ib txwm thiab tshem tawm cov khoom siv hluav taws xob nyuaj.
Ntxiv rau PoE cov chaw nres nkoj, ONUs nrog PoE yuav tsum muaj PON.Los ntawm PON no, lawv tuaj yeem txuas nrog OLT los tsim PON network tag nrho.
Post lub sij hawm: Nov-19-2021