Lub npe hu ua PON network muaj peb ntu:OLT, ODN thiabONU.AnOLTntaus ntawv nyob rau hauv lub hauv paus ntawm lub network topology.Nws nkag mus rau ntau lub network kev pabcuam nce siab thiab kev pabcuam ntawm ntau tus neeg siv nqes los ntawm ODN.Nws yog ib qho tseem ceeb ntawm cov kev pabcuam sib sau ua ke thiab kev faib khoom.OLTib txhij paub txog ntau lub network tswj kev ua haujlwm xws li kev tswj hwm, kev tswj hwm, sib piv thiab lwm yam rau cov neeg siv khoom.ONU.OLTcov khoom siv yog lub hauv paus ntawm PON network ob qho tib si ntawm nws qhov chaw nyob hauv network lossis network ua haujlwm.Nrog Ntau thiab ntau cov kev pabcuam xws li kev nkag mus rau Is Taws Nem, 4K IPTV video, cov kev pabcuam hauv tsev ntse, kev lag luam me thiab nruab nrab cov kab mob siab rau, IMS lub suab, thiab kev xa xov tooj ntawm tes tau nqa ntawm PON network, qhov kev thov rau bandwidth thiab qib ntawm kev ua kom zoo dua qub. kev tswj xyuas txuas ntxiv mus ntxiv .Kev txhim kho ntawm PON thev naus laus zis thiab kev xa tawm thiab kev hloov pauv ntawmOLTcov khoom siv ua lub luag haujlwm tseem ceeb hauv kev txhim kho cov kev sib txuas lus broadband.
Kev tsom xam ntawm PON network xwm txheej
(1)OLTkhoom siv
CovOLTCov khoom siv ntawm cov neeg ua haujlwm hauv tsev tau pib siv hauv xyoo 2006, thiab feem ntau yog siv rau PON + DSL nkag mus rau thawj theem.Txij li xyoo 2009, FTTH tau xa mus rau qhov loj rau ntau tshaj 10 xyoo.Raws li qhov chaw bandwidth, lub peev xwm hloov pauv ntawm tag nrho lub tshuab, thiab kev txhawb nqa rau PON board card, muaj 2 ~ 3 tiam ntawm cov khoom siv khiav hauv lub network tam sim no.Qhov ib qho kev hloov pauv peev xwm ntawm cov chaw tsim khoom tseem ceeb ntawm cov khoom siv thawb hauv lub Tam sim no kev lag luam network nce mus txog 40G / qhov, thiab txhua qhov kev txhawb nqa 10G EPON thiab XG-PON1.
(2) PON technology xa tawm
Nrog rau kev lag luam maj mam siv 10G PON thev naus laus zis, PON daim npav teeb tsa los ntawmOLTcov khoom siv hauv lub network tam sim no tau muab faib ua plaub hom: EPON, GPON, 10G EPON thiab XG-PON, ntawm cov EPON thiab GPON yog cov tseem ceeb.
Raws li kev txhawb nqa kev txhim kho ntawm EPON cov qauv los ntawm Tuam Tshoj Telecom thiab Tuam Tshoj Unicom, tus neeg teb xov tooj hauv tsev EPON tau ua lag luam li 2 txog 3 xyoos ua ntej GPON.Ua ntej xyoo 2013, kev tsim kho tau tswj hwm los ntawm EPON, thiab tom qab ntawd, vim qhov zoo ntawm GPON hauv bandwidth, nws maj mam tuav txoj haujlwm tseem ceeb hauvOLTkev tsim kho.Los ntawm qhov kev xav ntawm kev xa tawm network tam sim no, lubOLTCov cuab yeej siv ntawm Tuam Tshoj Unicom thiab Tuam Tshoj Txawb feem ntau yog GPON, thaum Tuam Tshoj Telecom feem ntau yog EPON.
10G PON Kev Tsim Kho pib nyob ib ncig ntawm 2015. Raws li tus nqi ntawm 10G optical module yog ib txwm siab, tus nqi ntawm 10G PON ONT yog li 5 npaug ntawm EPON / GPON terminals uas twb muaj lawm.Nyob rau hauv ib puag ncig tam sim no uas cov neeg ua haujlwm feem ntau muab terminals rau cov neeg siv khoom, thiab kev lag luam xav tau yog qis dua 100 Mbit / s, txhua tus neeg ua haujlwm loj tau ceev faj txog kev xa tawm thiab siv 10G PON.Tam sim no, kev tsim kho hom ntawm 10G PON yog siv rau hauv 10 GPON + LAN thiab FTTH xa tawm.10 GPON + LAN feem ntau yog los hloov cov xov tooj ntawm tes LAN, network thiab PON + LAN network.Ntawm qhov tod tes, nws daws qhov teeb meem ntawm qhov tsis txaus bandwidth tshwm sim los ntawm cov neeg siv nkag siab ntau;ntawm qhov tod tes, txij li ntau tus neeg siv qhia tus nqi ntawm optical module hauv MDU, tag nrho cov nqi nce me ntsis piv nrog PON + LAN, yog li nws muaj daim ntawv thov loj, thiab ob qho tib si 10G PON thiab XG-PON tau txais yuav.Kev tsim kho ntawm 10G PON FTTH feem ntau yog qhov kev sim ua los ntawm ntau tus neeg ua haujlwm.Lub hom phiaj tseem ceeb yog tshaj tawm thiab txheeb xyuas cov khoom ntawm 10G PON FTTH.
Cov saum toj no yog cov lus piav qhia ntawm tag nrho cov qauv ntawm PON network.Cov khoom lag luam network ntawm Shenzhen HDV Photoelectronic Technology Co., Ltd. yog txhua yam khoom siv tsim nyob ib puag ncig PON network, suav nrogONUseries /OLTseries / optical module series / transceiver series thiab lwm yam.
