Inethiwekhi ebizwa nge-PON inezingxenye ezintathu:OLT, ODN kanyeI-ONU.AnOLTidivayisi itholakala kungqikithi ye-topology yenethiwekhi. Ifinyelela amanethiwekhi amaningi wesevisi phezulu kanye nezinsizakalo zabasebenzisi abaningi phansi nge-ODN. Kuyi-node ebalulekile yokuhlanganiswa kwesevisi nokusabalalisa.OLTkanyekanye ibona imisebenzi eminingi yokuphatha inethiwekhi njengokulawula, ukuphatha, ukuhlukahluka nokunye kudivayisi yeklayentiI-ONU.OLTamadivayisi awumongo wenethiwekhi ye-PON kokubili ngokuya ngendawo yayo yenethiwekhi noma umsebenzi wenethiwekhi. Ngezinsiza eziningi ezifana nokufinyelela i-inthanethi, ividiyo ye-4K IPTV, izinsiza zasekhaya ezihlakaniphile, imigqa ezinikele emabhizinisi amancane naphakathi, izwi le-IMS, nokubuyela emuva kweselula kuqhutshwa kunethiwekhi ye-PON, isidingo somkhawulokudonsa kanye nezinga lokucwengisiswa. abaphathi bayaqhubeka nokwanda .Ukuthuthukiswa kobuchwepheshe be-PON kanye nokusatshalaliswa nokuziphendukela kwemvelo kweOLTamadivayisi adlala indima ebalulekile ekuthuthukisweni kwamanethiwekhi okufinyelela e-broadband.
Ukuhlaziywa kwesimo senethiwekhi ye-PON
(1)OLTukuthunyelwa kwemishini
IOLTimishini yabaqhubi basekhaya ngokuyisisekelo yasetshenziswa ngo-2006, futhi yayisetshenziselwa kakhulu ukufinyelela kwe-PON + DSL esigabeni sokuqala. Kusukela ngo-2009, i-FTTH isetshenziswe ngezinga elikhulu iminyaka engaphezu kwe-10. Ngokusho komkhawulokudonsa we-slot, amandla okushintsha umshini wonke, kanye nokusekelwa kwekhadi lebhodi le-PON, kunezizukulwane ezingu-2 ~ 3 zemikhiqizo esebenzayo kunethiwekhi yamanje.Umthamo wokushintsha we-slot owodwa wemishini yokucindezela eyinhloko yomkhiqizi ukusebenza kwenethiwekhi yamanje kufinyelela ku-40G/ slot, futhi bonke basekela i-10G EPON ne-XG-PON1.
(2) Ukuthunyelwa kobuchwepheshe be-PON
Ngokusetshenziswa kancane kancane kwezohwebo kobuchwepheshe be-10G PON, amakhadi e-PON ahlelwe nguOLTamadivayisi kunethiwekhi yamanje ahlukaniswe abe izinhlobo ezine: EPON, GPON, 10G EPON kanye ne-XG-PON, phakathi kwazo i-EPON ne-GPON yizona eziyinhloko.
Ngaphansi kokugqugquzelwa kokuthuthukiswa kwamazinga e-EPON yi-China Telecom kanye ne-China Unicom, umqhubi wasekhaya i-EPON idayiswa eminyakeni emi-2 kuya kwemi-3 ngaphambi kwe-GPON. Ngaphambi kuka-2013, ukwakhiwa kwakubuswa yi-EPON, futhi-ke, ngenxa yezinzuzo ze-GPON ku-bandwidth, kancane kancane yathatha isikhundla esiphezuluOLTukwakhiwa. Ngokombono wokuthunyelwa kwesitoko senethiwekhi samanje, iOLTimishini ye-China Unicom kanye ne-China Mobile ikakhulukazi i-GPON, kanti i-China Telecom ikakhulukazi i-EPON.
I-10G PON Construction yaqala cishe ngo-2015. Njengoba intengo ye-10G optical module ihlale iphezulu, intengo ye-10G PON ONT cishe iphindwe izikhathi ezingu-5 kunamatheminali akhona e-EPON / GPON. Esimeni samanje lapho opharetha ngokuvamile benikeza amatheminali kumakhasimende, futhi isidingo sebhizinisi ngokuyisisekelo singaphansi kuka-100 Mbit / s, bonke opharetha abakhulu bayaqaphela mayelana nokuthunyelwa kanye nokusetshenziswa kwe-10G PON. Njengamanje, imodi yokwakha ye-10G PON isetshenziswa ikakhulukazi ku-10 GPON + LAN kanye nokuthunyelwa kwe-FTTH.10 GPON + LAN ngokuyinhloko ukuguqula i-LAN yeseli ekhona, inethiwekhi kanye nenethiwekhi ye-PON + LAN. Ngakolunye uhlangothi, ixazulula inkinga yomkhawulokudonsa onganele obangelwa inombolo ephezulu yabasebenzisi bokufinyelela; ngakolunye uhlangothi, njengoba abasebenzisi abaningi babelana ngentengo ye-optical module ku-MDU, izindleko zizonke zikhuphuka kancane uma ziqhathaniswa ne-PON + LAN, ngakho-ke inohlelo lokusebenza olukhulu, futhi kokubili i-10G PON ne-XG-PON yamukelwa. Ukwakhiwa kwe-10G PON FTTH ngokuyinhloko iphrojekthi yokuhlola eyenziwa opharetha abahlukahlukene. Inhloso enkulu ukwazisa nokuqinisekisa imikhiqizo ye-10G PON FTTH.
Okungenhla kuyincazelo yesakhiwo sonke senethiwekhi ye-PON. Imikhiqizo yenethiwekhi ye-Shenzhen HDV Photoelectronic Technology Co., Ltd. yonke iyimishini ekhiqizwa kunethiwekhi ye-PON, okuhlanganisaI-ONUuchungechunge /OLTuchungechunge / optical module uchungechunge / transceiver uchungechunge nokunye.
