Cov neeg ruaj ntseg uas tau ua haujlwm hauv PON networks yeej paub ONU, uas yog lub cuab yeej nkag mus rau hauv PON network, uas yog sib npaug rau qhov hloov nkag mus rau hauv peb lub network ib txwm muaj.
Lub network PON yog ib lub network optical passive. Qhov laj thawj uas nws hais tias yog passive yog tias kev sib kis fiber ntau ntawm ONU thiab OLT tsis xav tau cov khoom siv fais fab. PON siv ib lub fiber ntau los txuas rau OLT, thiab tom qab ntawd OLT txuas nrog ONU.
Txawm li cas los xij, ONU rau kev noj qab haus huv muaj nws tus kheej tshwj xeeb. Lub kaw lus tsuas yog tuaj yeem paub thiab saib xyuas cov xwm txheej kev ruaj ntseg nyob rau hauv qhov kub thiab txias dav. Qhov no tsis muaj nyob rau hauv cov khoom siv ONU ib txwm muaj. Lub ONU ib txwm muaj feem ntau yog lub pob PON, thiab nws kuj muaj PON. Thiab POE chaw nres nkoj, thiab nws muaj PON chaw nres nkoj thiab PoE chaw nres nkoj tib lub sijhawm, uas tsis tsuas yog ua rau lub network hloov pauv tau, tab sis kuj txuag hluav taws xob ntxiv rau lub koob yees duab saib xyuas.
Qhov sib txawv loj tshaj plaws ntawm ONU ib txwm thiab ONU uas txhawb nqa PoE yog tias tus qub tsuas yog siv tau ua lub network optical los xa cov ntaub ntawv. Tus qub tsis tsuas yog xa cov ntaub ntawv xwb, tab sis kuj tseem tuaj yeem txuas rau lub koob yees duab los ntawm nws qhov chaw nres nkoj PoE los muab hluav taws xob. Nws yuav zoo li tsis yog kev hloov pauv loj, tab sis nyob rau hauv qee qhov chaw tshwj xeeb, xws li qhov chaw phem, tsis muaj peev xwm khawb rau hluav taws xob, tsis yooj yim rau hluav taws xob, thiab lwm yam, nws muaj qhov zoo heev.
Kuv xav tias qhov no yog qhov sib txawv ntawm PON hauv thaj chaw ntawm kev nkag mus rau hauv bandwidth thiab kev saib xyuas. Tau kawg, ONU nrog POE function kuj tseem siv tau hauv thaj chaw broadband.
Txawm hais tias daim ntawv thov ntawm PON txoj kev nkag mus rau hauv kev saib xyuas tsis dav heev, nws tuaj yeem pom tias nrog kev txhim kho cov nroog muaj kev nyab xeeb thiab cov nroog ntse, kev siv cov txheej txheem nkag mus rau PON yuav dhau los ua qhov teeb meem.
Lub sijhawm tshaj tawm: Lub Kaum Hli-22-2021