Ndi kukhazikitsa kwa "Broadband China" ndi "Kufulumizitsa ndi kuchepetsa malipiro" njira, China a fixed burodibandi maukonde luso mosalekeza bwino; Broadband yogwiritsa ntchito yasintha kuchokera ku 10M ndi pansi mpaka 50M / 100M / 200M, ndipo yasintha kupita ku Gigabit; Broadband network Infrastructure Mutual Kukwezeleza ndi mavidiyo matanthauzo apamwamba ndi ntchito Intaneti.
Kuti mukwaniritse kudumpha kuchokera ku "100M" kupita ku "Giga", teknoloji ya PON iyenera kusinthidwa kukhala 10G PON. Chimodzi mwazovuta zazikulu pakutumiza kwa 10G PON ndi mtengo. Mtengo wa zida za 10G PON umaphatikizapo mtengo wa optical modules, chipsets, ndi PCD ma CD. Mtengo wa ma module optical ndi chipsets ndiye chinthu chachikulu.
Mayeso a China Telecom a 2018 10G PON apakati komanso kuyitanitsa kumaphatikizapo magawo atatu: GPON, 10G-EPON, ndi zida za XG-PON. Zida za GPON za China Mobile za 2018 zikuphatikiza zida za GPON, XG-PON, XGS-PON. XGS-PON ndi nthawi yoyamba.
GPON imakwezedwa kukhala XGPON1 kapena XGSPON. Pakalipano, yankho lalikulu pamsika ndilo yankho la kunja kwa multiplexer. Mu yankho ili, zizindikiro za GPON ndi XGPON1 / XGSPON zimachulukitsidwa mu WDM mode powonjezera khadi la board la XGPON1 / XGSPON, ndiyeno multiplexer yakunja imatumizidwa kwa ogwiritsa ntchito akutali. Mfundo ya yankho ili ndi yosavuta, koma pali zovuta zambiri monga kukweza nthawi yayitali yotsegulira, kukwera mtengo, zida zambiri zothandizira, ndi malo akuluakulu. Kuphatikiza apo, kuyambitsidwa kwa multimultiplexer yakunja kudzabweretsanso kutayika kwamphamvu kowonjezera, komwe kudzakhala ndi chikoka. Zowopsa zamabizinesi omwe alipo kale.
Combo PON ndi kuphatikiza kwa GPON ndi XGPON1 / XGSPON. Mfundo yake ndikuzindikira nthawi imodzi yodziyimira payokha ndikulandila kwa GPON ndi XGPON1 / XGSPON ma sign optical mu gawo la optical, ndikuphatikiza mafunde anayi osiyana siyana kudzera mu chipangizo cha WDM chomangidwa. GPON mautumiki apakompyuta omwe alipo ndi ntchito za XGPON1 kapena XGSPON nthawi imodzi, kupewa kusintha kwa mawonekedwe omwe alipo komanso kuwonjezera malo owonjezera a chipinda, potero kukwaniritsa kukweza kwa GPON kopanda malire komanso kothandiza.
Chithunzi cha Combo-PON system
Quad-OSA, chipangizo chokhala ndi madoko anayi cha Combo PONOLT, imagwirizanitsa ma transceivers awiri mu chipangizo chimodzi chowala: laser yachikhalidwe ya GPON ya 2.5G 1490nm DFB laser ndi 1310nm APD ndi XGPON's 10G 1577nm EML laser ndi 1270nm APD, WDM coupling imagwiritsidwa ntchito kugwirizanitsa ndi doko la optical.
Combo PONOLTProtocol imaphatikizapo ma protocol awiri, GPON ndi XGPON, okhala ndi mawonekedwe angapo. Pali N1, N2a, D1, D2 ndi zina za bajeti yolumikizira. Mwachidule, kuti zigwirizane ndi bajeti za 28dB ndi 32dB zamalumikizidwe achikhalidwe a GPON B + ndi C +, XG (S) -PON yogwirizana ndi bajeti yolumikizana yomweyi ndiyothandiza kwambiri pakukweza bwino kwa GPON kupita ku NGPON. Awa ndi mafotokozedwe a D1 ndi D2 ofanana ndi Combo PON.
M'zaka zingapo zapitazi, njira yotumizira ma hybrid Integrated Combo PON network yakhala ikuyenda pang'onopang'ono. Chimodzi mwazifukwa zazikulu ndikukula kwa njira zoperekera zida za single-fiber bidirectional Optical pa Combo PON.OLTmbali, makamaka kukhwima kwa zipangizo zamakono zopangira bajeti. digiri. Kwa nthawi yayitali, kuchuluka kwa zokolola zamakampani opanga zida zowunikira mu Quad-OSA zapamwamba zakhala zikukumana ndi zovuta zazikulu. ku 31db. Komabe, makampani ambiri opangira zida zamagetsi omwe amapanga zinthu za PON, zokolola za N2a-compliant Quad-OSA zimakakamizika, ndipo zokolola za 32 dB D2 zida zowonera ndizotsika.
Kumbali ina, pamlingo wogwiritsa ntchito, ogwiritsa ntchito akhala akuyembekezera kukhwima kofulumira kwa zida zapamwamba zolumikizira bajeti / ma module opangira. Pa 2018 China Optical Network / FTTH Forum yomwe inachitikira ku Beijing mu June chaka chino, ogwira ntchito monga China Mobile ndi China Telecom akufunikirabe kuti D2 optical device / Optical modules apange makina okhwima okhwima kuti athandizire kufalitsa kwathunthu kwa Combo PON .