Into ebizwa ngokuba yi-PON network ineenxalenye ezintathu:OLT, ODN kunyeI-ONU.AnOLTisixhobo sisembindini wetopology yothungelwano. Ifikelela kwiinkonzo ezininzi zothungelwano ukuya phezulu kunye neenkonzo zabasebenzisi abaninzi ukuhla nge-ODN. Yindawo ebalulekileyo yokudibanisa inkonzo kunye nokuhanjiswa.OLTngaxeshanye uqonda imisebenzi emininzi yolawulo womnatha njengolawulo, ulawulo, ukusukela njalo njalo kwisixhobo somthengiI-ONU.OLTizixhobo zingundoqo womnatha wePON zombini ngokwemiqathango yendawo yayo yenethiwekhi okanye umsebenzi womnatha. Ngeenkonzo ezingakumbi nangakumbi ezinjengokufikelela kwi-Intanethi, ividiyo ye-4K IPTV, iinkonzo zekhaya ezihlakaniphileyo, imigca ezinikeleyo yamashishini amancinci naphakathi, ilizwi le-IMS, kunye ne-mobile backsend zithwalwa kwinethiwekhi ye-PON, imfuno ye-bandwidth kunye nenqanaba lokucokisa. ulawulo luyaqhubeka ukwandisa .Uphuhliso lweteknoloji yePON kunye nokuthunyelwa kunye nokuziphendukela kwemveloOLTizixhobo zidlala indima ebalulekileyo kuphuhliso lothungelwano lokufikelela kwibroadband.
Uhlalutyo lobume benethiwekhi yePON
(1)OLTukusasazwa kwezixhobo
IOLTizixhobo zabaqhubi basekhaya zasetyenziswa ngokusisiseko kwi-2006, kwaye yayisetyenziselwa ukufikelela kwi-PON + DSL kwinqanaba lokuqala. Ukusukela ngo-2009, i-FTTH ibekwe kwindawo enkulu ngaphezulu kweminyaka eli-10. Ngokutsho kwe-slot bandwidth, amandla okutshintsha umatshini wonke, kunye nenkxaso yekhadi lebhodi le-PON, kukho i-2 ~ 3 izizukulwana zeemveliso ezisebenzayo kwinethiwekhi yangoku.Isixhobo sokutshintsha esinye isixhobo somenzi wesixhobo sokutyhala esiphambili umsebenzi womnatha wangoku ufikelela kwi-40G / slot, kwaye yonke inkxaso ye-10G EPON kunye ne-XG-PON1.
(2) Ukusasazwa kweteknoloji yePON
Ngokusetyenziswa ngokuthe ngcembe kwentengiso ye-10G iteknoloji yePON, amakhadi e-PON aqulunqwe yiOLTizixhobo kwinethiwekhi yangoku zihlulwe zibe ziindidi ezine: EPON, GPON, 10G EPON kunye ne-XG-PON, phakathi kwazo i-EPON kunye ne-GPON zizona ziphambili.
Ngaphantsi kokukhuthazwa kokuphuculwa kwemigangatho ye-EPON yi-China Telecom kunye ne-China Unicom, umqhubi we-EPON wasekhaya uthengiswa malunga ne-2 kwiminyaka eyi-3 ngaphambili kune-GPON. Ngaphambi kwe-2013, ulwakhiwo lwalulawulwa yi-EPON, kwaye emva koko, ngenxa yeenzuzo ze-GPON kwi-bandwidth, ngokuthe ngcembe yahlala kwindawo ephezulu.OLTukwakhiwa. Ukusuka kwimbono yokusasazwa kwesitokhwe sothungelwano lwangoku, iOLTizixhobo China Unicom kunye China Mobile ikakhulu GPON, lo gama China Telecom ikakhulu EPON.
I-10G ye-PON Construction yaqala malunga ne-2015. Njengoko ixabiso le-module ye-10G ye-optical isoloko iphakamileyo, ixabiso le-10G PON ONT li malunga namaxesha angama-5 kwii-terminals ze-EPON / GPON ezikhoyo. Kwimeko yangoku apho abaqhubi banika ngokubanzi ii-terminals kubathengi, kwaye imfuno yoshishino ngokusisiseko ingaphantsi kwe-100 Mbit / s, bonke abaqhubi abakhulu baqaphele malunga nokuthunyelwa kunye nokusetyenziswa kwe-10G PON. Okwangoku, imodi yokwakha ye-10G PON isetyenziswa ikakhulu kwi-10 GPON + LAN kunye ne-FTTH deployment.10 GPON + LAN ikakhulu ukuguqula i-LAN yeseli ekhoyo, inethiwekhi kunye ne-PON + LAN network. Ngakolunye uhlangothi, ixazulula ingxaki ye-bandwidth enganeleyo ebangelwa inani eliphezulu labasebenzisi bokufikelela; ngakolunye uhlangothi, ekubeni abasebenzisi abaninzi babelana ngexabiso lemodyuli ye-optical kwi-MDU, ixabiso elipheleleyo linyuka lincinci xa lithelekiswa ne-PON + LAN, ngoko ke inesicelo esikhulu, kwaye zombini i-10G PON kunye ne-XG-PON yamkelwa. Ukwakhiwa kwe-10G PON FTTH ikakhulu yiprojekthi yokulinga eyenziwa ngabaqhubi abahlukeneyo. Injongo ephambili kukupapasha kunye nokuqinisekisa iimveliso ze-10G PON FTTH.
Oku ngasentla yinkcazo yesakhiwo ngokubanzi se-PON network. Iimveliso zenethiwekhi ye-Shenzhen HDV Photoelectronic Technology Co., Ltd. zonke zizixhobo eziveliswe malunga nenethiwekhi yePON, kubandakanywaI-ONUuthotho /OLTuthotho / uthotho lweemodyuli zokukhanya / uthotho lwe-transceiver njalo njalo.
