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 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 tau txhim kho tas li, thiab nws yuav tsum muaj txhua qhov chaw yuav tsum muaj kev saib xyuas kev ruaj ntseg.Txawm li cas los xij, qhov nyuaj ntawm txoj kev loj hlob hauv nroog ua rau kev saib xyuas ntawm cov qauv kev nkag mus tsis tuaj yeem ua tau raws li qhov yuav tsum tau ua, thiab kev saib xyuas siv PON network nkag tau maj mam dhau los ua neeg nyiam.
Raws li ib qho tseem ceeb nkag mus rau hauv PON system, kev xaiv ntawm ONU yog qhov tseem ceeb.Yog li twg ONU zoo dua thiab yuav xaiv li cas?
ONU yog tus neeg siv khoom kawg rau PON daim ntawv thov.Nws yog cov khoom siv hluav taws xob siab thiab cov nqi hluav taws xob tsim nyog rau kev hloov pauv ntawm "tooj liab cable era" mus rau "optical fiber era".Nws plays lub luag haujlwm tseem ceeb hauv kev tsim network.
ONU yog ib qho chaw kho qhov muag, uas siv ib qho fiber ntau txuas mus rau lub hauv paus chaw ua haujlwm OLT los muab kev pabcuam xws li cov ntaub ntawv, suab, thiab video.Nws yog lub luag haujlwm rau kev 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.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.Qhov tom kawg yog PoE-muaj peev xwm, uas yog, nrog ntau qhov chaw nres nkoj PoE, los ntawm kev soj ntsuam lub koob yees duab tuaj yeem txuas nrog ua kom lawv ua haujlwm ib txwm thiab tshem tawm cov kev sib txuas ntawm lub zog.
Ntxiv rau qhov chaw nres nkoj PoE, ONU nrog PoE yuav tsum muaj PON.Los ntawm PON no, nws tuaj yeem txuas nrog OLT los tsim PON network tag nrho.
Tam sim no, hom ONU no nrog PoE tau txais kev pom zoo los ntawm kev saib xyuas cov tuam txhab engineering.Piv txwv li, ONU tus nqi ntawm Sushan Weida yog siab heev, tab sis nws daws tau ntau yam teeb meem tsis tsim nyog.Yog li ntawd, yog tias PON network siv nyob rau hauv txoj haujlwm saib xyuas, ONU nrog PoE muaj nuj nqi tuaj yeem xaiv.
Post lub sij hawm: Feb-25-2022