Njengamanje, i-IPTV, opharetha abathathu abakhulu bezokuxhumana, ihlezi ingena emakethe ye-cable TV yabaqhubi bemisakazo bendabuko nabamabonakude. Abaqhubi bemisakazo nomabonakude babhekene nenani elikhulu lokulahlekelwa ngabasebenzisi, futhi ukuguqulwa kokuthuthukiswa komsakazo nomabonakude kuseduze. Kungashiwo ukuthi noma ubani olawula igumbi lokuphumula ubamba abasebenzisi. Ibhizinisi eliyinhloko labaqhubi bomsakazo nomabonakude lihlanganisa kokubili izinsiza zomsakazo nethelevishini kanye nezinsizakalo zedatha yezindlela ezimbili (ukufinyelela ku-inthanethi/i-VOD/IPTV/e-government/imidlalo esebenzisanayo) kanye nezinsiza ze-broadband. Ngakho-ke, ukwakhiwa kwe-FTTH yomsakazo nethelevishini kufaka phakathi ukwakhiwa kwe-FTTH yezinsizakalo zomsakazo nethelevishini kanye nokwakhiwa kwe-FTTH yezinsizakalo zedatha yezindlela ezimbili. Ukuhlanganisa izinsiza ezikhona zomsakazo nethelevishini, ukuqaliswa kwe-FTTH ngokuyinhloko kusebenzisa isisombululo samanje esivamile embonini: i-single fiber three wave+isixazululo sokufinyelela kwesevisi ye-broadband. Namuhla, umhleli uzokuchazela kakhulu.
Ohlelweni lokufinyelela lwesevisi ye-fiber three wave+broadband, iI-ONUIsigaba sedatha yekati sisebenzisa amasiginali we-1310nm/1490nm optical, kanyeI-ONUIsigaba se-CATV sisebenzisa amasiginali we-optical angu-1550nm. Ekamelweni elingaphambili lomsakazo nethelevishini, okokusebenza okuphindaphindayo kwe-WDM wavelength division kuhlanganiswe nentambo ye-fiber optic, bese idlula ekudluliselweni nasekuhlukaniseni ngokubona amaleveli ahlukahlukene emishini ye-ODN ngaphambi kokuthi ekugcineni ifike ekhaya lomsebenzisi. KweI-ONUiyunithi yekati yokubona yekhaya lomsebenzisi, i-single fibre three waveI-ONUI-CATV eyakhiwe inkampani yethu isetshenziswa, okungukuthi, idatha+CATV optical kanye mechanical ezimbili GPON eyodwa.I-ONU, engakhipha ngokuqondile amasiginali kamabonakude kanye namasiginali wedatha ye-broadband. Ngesikhathi esifanayo, opharetha bomsakazo nethelevishini bangathuthukisa abasebenzisi be-broadband ngokusekelwe kulolu hlelo, bazuze ukukhiqiza imali eningi, futhi behlise izindleko zokwakha inethiwekhi.
Izinzuzo ze-single fibre three wave access scheme zimi kanje:
1. Ukuphathwa kokuphela kuya ekupheleni: Ngenxa yokwakhiwa kwenethiwekhi yokuphela-kuya-ekupheleni kwe-fiber three wave, kulula kakhulu ukuphatha.I-ONUamakati optical. Abaphathi benethiwekhi bangasebenzisa imisebenzi efana nokusabalalisa isevisi ekude, ukulungisa amaphutha, nokuvula/ukuvala izinsiza ze-CATV ngokusebenzisa ukuphelaOLTamadivaysi.
2. Izindleko eziphansi ze-ODN: Ngenxa yokuthi amasiginali we-TV asakazwayo namasiginali wedatha ye-broadband adluliselwa ngefayibha ebonakalayo ebonakalayo, lolu hlelo lunciphisa kakhulu izindleko zokwakha zezinsiza ze-ODN ukusuka ekuqaleni ukuya ekhaya lomsebenzisi.
Umdwebo we-topology yesistimu