Ngokuphakwa nokuqaliswa kokuguqulwa kokubonwa kwenethiwekhi ye-broadband, ikhwalithi yenethiwekhi iyathuthukiswa, izinga lokuhluleka liyehla, futhi umbono ovumayo womsebenzisi uyakhuphuka.Njengamanje, ukwakhiwa kwenethiwekhi yokufinyelela ebanzi kuphethwe yi-FTTH futhi kwelekelelwa yi-PON+LAN.Uma inethiwekhi yesikhathi esizayo yokufinyelela ku-broadband isebenzisa ubuchwepheshe be-PON bokunethiwekha, ngeke ikwazi ukunikeza ulwazi lomsebenzisi lwekhwalithi ephezulu kuphela, kodwa futhi yehlise izindleko zokusebenza kwebhizinisi futhi ithuthukise izinzuzo zezomnotho.Okulandelayo, lesi sihloko sizokwenza izincomo zokuthuthukiswa kobuchwepheshe kanye nokusatshalaliswa kwe-10G PON ngokwezidingo zebhizinisi.
Iyini inethiwekhi ye-PON
Inethiwekhi ye-PON iquketheOLT, ODN kanyeI-ONU.AnOLTidivayisi iwumongo we-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 asenhlizweni yenethiwekhi ye-PON, kokubili ngokuya ngendawo yawo yenethiwekhi namandla enethiwekhi yawo.Njengoba izinsiza ezengeziwe ezinjengokufinyelela ku-inthanethi, ividiyo ye-4K IPTV, izinsiza zasekhaya ezihlakaniphile, imigqa yangasese yamabhizinisi amancane naphakathi nendawo, izwi le-IMS, nokubuyela emuva kweselula kwenziwa kunethiwekhi ye-PON, isidingo somkhawulokudonsa kanye nezinga lokucwengisiswa abaphathi bayaqhubeka nokukhula.Ukuthuthukiswa kobuchwepheshe be-PON kanye nokuziphendukela kwemvelo kokuthunyelwa kweOLTimishini idlala indima ebalulekile ekuthuthukisweni kwamanethiwekhi okufinyelela e-broadband..
Ukuhlaziywa kwesimo senethiwekhi ye-PON
(1)OLTukuthunyelwa kwemishini
IOLTimishini yabaqhubi basekhaya ngokuyisisekelo yaqala ukuthunyelwa ngo-2006, futhi yayisetshenziselwa kakhulu ukufinyelela kwe-PON+DSL esigabeni sokuqala.Sekuyiminyaka engaphezu kwe-10 kusukela i-FTTH yaqala ukuthunyelwa ngezinga elikhulu ngo-2009. Ngokusho komkhawulokudonsa we-slot, amandla okushintsha jikelele, nokusekelwa kwebhodi le-PON, kunezizukulwane ezingu-2-3 zemikhiqizo esebenza kunethiwekhi ebukhoma.Kunethiwekhi ebukhoma, amandla okushintsha kwesikhala esisodwa sedivayisi yokusunduza eyinhloko afinyelela ku-40 Gbit/s futhi asekela i-EPON engu-10 Gbit/s kanye ne-XG-PON1.
(2) Ukuthunyelwa kobuchwepheshe be-PON
Ngobuchwepheshe obuthengiswa kancane kancane be-10G PON, amabhodi e-PON acushwa avuliweOLTamadivayisi akunethiwekhi ebukhoma ahlukaniswe abe yi-EPON, GPON, 10G EPON ne-XG-PON, okuyi-EPON ne-GPON okuyizona eziyinhloko.Ngaphansi kokugqugquzelwa kwe-China Telecom kanye ne-China Unicom ukuthuthukisa izinga le-EPON, ukusetshenziswa kwezentengiselwano kwe-EPON ngabaqhubi basekhaya kwakuneminyaka engaba ngu-2-3 ngaphambili kune-GPON.Ngaphambi kuka-2013, ukwakhiwa kwakubuswa yi-EPON, futhi kamuva, ngenxa yezinzuzo. ye-GPON ku-bandwidth, kancane kancane yabusa ukwakhiwa kweOLT.Ngokombono wokuthunyelwa kwenethiwekhi okukhona, i-China Unicom ne-China Mobile'sOLTimishini ngokuyinhloko GPON, futhi China Telecom ngokuyinhloko EPON.
Ukwakhiwa kwe-PON ye-10G kwaqala cishe ngo-2015. Ngenxa yenani eliphakeme lamamojula we-10G optical, intengo ye-10G PON ONT cishe izikhathi ezinhlanu zamatheminali e-EPON/GPON akhona.Esimeni samanje lapho itheminali ngokuvamile inikelwa ngu-opharetha ekhasimendeni, futhi isidingo sesevisi ngokuyisisekelo singaphansi kuka-100Mbit/s, ama-opharetha amakhulu ayaqaphela mayelana nokuthunyelwa kwezicelo ze-10G PON.Njengamanje, indlela yokwakha ye-10G PON isetshenziswa ikakhulukazi ku-10G PON+ LAN kanye nokuthunyelwa kwe-FTTH.I-10G PON+ LAN ngokuyinhloko iwukuguqulwa kwenethiwekhi ye-cell LAN ekhona kanye nenethiwekhi ye-PON+ LAN.Ngakolunye uhlangothi, xazulula ukushoda komkhawulokudonsa okubangelwa inombolo ephezulu yabasebenzisi bokufinyelela;Ngakolunye uhlangothi, ngenxa yokuthi abasebenzisi abaningi babelana ngentengo yamamojula optical ku-MDU, izindleko zizonke azikhuli kakhulu uma ziqhathaniswa nenethiwekhi ye-PON+LAN, ngakho-ke isetshenziswe esikalini, futhi ngokobuchwepheshe i-10G PON ne-XG-PON isetshenziswa. .Ukwakhiwa kwe-10G PON FTTH ngokuyinhloko umshayeli we-gigabit wasendlini owenziwe opharetha abahlukahlukene, futhi inhloso enkulu ukwazisa nokuqinisekisa imikhiqizo ye-10G PON FTTH.
Mayelana nobuchwepheshe be-Ethernet ye-10G(gigabit eyishumi) kanye nokusetshenziswa kungamaphuzu olwazi angenhla, mayelana neOLTokokusebenza okukhulunywe ngakho ngenhla e-Shenzhen HDV Phoelectron Technology Ltd. kungokwesigaba esidumile semikhiqizo yokuxhumana, efana nale:OLTshintsha, GPONOLT, EPONOLT, khanyisa CatOLT, njll., okungenhlaOLTimishini ingasetshenziswa ezindaweni ezihlukahlukene, ngezidingo ezahlukene zabasebenzisi ukunikeza ukukhetha okwengeziwe, wamukelekile ukuqonda, sizohlinzeka ngesevisi yekhwalithi engcono kakhulu.
