Ngokuqalisa ukusebenzisa amasu “e-Broadband China” kanye “Nokusheshisa nokunciphisa imali”, amakhono enethiwekhi ye-broadband engaguquki yaseShayina aye athuthukiswa ngokuqhubekayo;i-broadband yomsebenzisi ishintshile isuka ku-10M nangaphansi yaya ku-50M / 100M / 200M, futhi isithuthukele ku-Gigabit;Ingqalasizinda yenethiwekhi ye-broadband Ukukhuthaza ngokubambisana ngevidiyo enencazelo ephezulu nezinsizakalo ze-inthanethi.
Ukuze uthole ukweqa kusuka ku-“100M” kuya ku-“Giga”, ubuchwepheshe be-PON budinga ukuthuthukiswa ukuze bufinyelele ku-10G PON.Esinye sezithiyo eziyinhloko esikalini sokuthunyelwa kwe-10G PON yizindleko.Izindleko zemishini ye-PON ye-10G ihlanganisa izindleko zamamojula optical, chipsets, kanye ne-PCD yokupakisha.Izindleko zamamojula we-optical kanye nama-chipsets yisici esiyinhloko.
Isivivinyo sokutholwa kwe-PON sika-2018 10G se-China Telecom esimaphakathi kanye nokubhida kufaka phakathi izingxenye ezintathu ikakhulukazi: i-GPON, i-10G-EPON, kanye nemishini ye-XG-PON.Iqoqo lemishini ye-GPON ye-China Mobile ka-2018 ihlanganisa i-GPON, i-XG-PON, imishini ye-XGS-PON.I-XGS-PON ingokokuqala.
I-GPON ithuthukiselwe ku-XGPON1 noma i-XGSPON.Njengamanje, isixazululo esijwayelekile emakethe yisixazululo se-multiplexer sangaphandle.Kulesi sixazululo, amasiginali we-GPON kanye ne-XGPON1 / XGSPON aphindwaphindwa kumodi ye-WDM ngokungeza ikhadi lebhodi le-XGPON1 / XGSPON, bese i-multiplexer yangaphandle idluliselwa kubasebenzisi abakude.Umgomo walesi sixazululo ulula uma kuqhathaniswa, kodwa kuningi okungalungile njengokuvula isikhathi eside sokuthuthukisa, izindleko eziphezulu, izinto eziningi ezisekelayo, kanye nomsebenzi omkhulu wendawo.Ngaphezu kwalokho, ukwethulwa kwe-multiplexer yangaphandle kuzophinde ilethe ukulahleka kwamandla okubonakalayo okwengeziwe, okuzoba nomthelela.Izingozi zebhizinisi lekhasimende elikhona.
I-Combo PON iyinhlanganisela ye-GPON ne-XGPON1 / XGSPON.Isimiso saso siwukubona ngesikhathi esifanayo ukudluliswa okuzimele nokwamukelwa kwe-GPON kanye ne-XGPON1 / XGSPON amasignali optical module optical, kanye nokuhlanganisa amaza amaza ama-4 ahlukene ngokusebenzisa idivayisi ye-WDM eyakhelwe ngaphakathi.Inikeza isikhombimsebenzisi esisodwa se-fiber optical, esingahambisana nayo. amasevisi enethiwekhi ye-GPON ekhona kanye ne-XGPON1 noma i-XGSPON amasevisi ngesikhathi esifanayo, ukugwema izinguquko esakhiweni senethiwekhi esikhona kanye nokwengeza indawo yegumbi eyengeziwe, ngaleyo ndlela kuzuzwe ukuthuthukiswa kwe-GPON okungenazihibe nokusebenza kahle.
Umdwebo wesistimu ye-Combo-PON
I-Quad-OSA, idivayisi yokubona enezimbobo ezine ye-Combo PON OLT, ihlanganisa amasethi amabili ama-transceiver kudivayisi eyodwa yokubona: i-GPON's 2.5G 1490nm DFB laser ne-1310nm APD kanye ne-XGPON's 10G 1577nm EMLnmPD esetshenziswa i-A1270 laser kanye ne-A1270 ukubhangqwana kumbobo ye-optical okukhiphayo.
Iphrothokholi ye-Combo PON OLT ibandakanya amasethi amabili ezivumelwano, i-GPON ne-XGPON, enezici eziningi.Kukhona i-N1, i-N2a, i-D1, i-D2 neminye imininingwane yesabelomali sesixhumanisi.Ngamagama alula, ukuze uhambisane nesabelomali se-28dB ne-32dB yezixhumanisi ze-GPON B + ne-C + zendabuko, i-XG (S) -PON ehambisana nesabelomali sesixhumanisi esifanayo yiyona ehamba phambili ekuthuthukisweni okushelelayo kwe-GPON ku-NGPON.Lokhu ukucaciswa kwe-D1 ne-D2 okuhambisana ne-Combo PON.
Eminyakeni embalwa edlule, inqubo yokuthunyelwa kwamanethiwekhi we-Combo PON ahlanganisiwe ayingxube ibihamba kancane.Esinye sezizathu eziyinhloko ukuvuthwa kochungechunge lokuhlinzeka lwamadivayisi abonakalayo e-fiber eyodwa aqondiswa kabili ohlangothini lwe-Combo PON OLT, ikakhulukazi ukuvuthwa kwamadivayisi abonakalayo ebhajethi ephezulu yesixhumanisi.iziqu.Isikhathi eside, izinga lokukhiqiza lezinkampani zemishini yokubona ezisezingeni eliphezulu ze-Quad-OSA belilokhu libhekene nezinselelo ezinkulu.Ukuze kuthuthukiswe ukusetshenziswa kwe-Combo PON, zonke izinhlangothi zochungechunge lwemboni zafaka engozini futhi zamukela uhlelo loshintsho lokunciphisa i-N2a. kwe 31db.Kodwa-ke, ezinkampanini eziningi zemishini yokubona ezakha imikhiqizo ye-PON, isivuno semikhiqizo ye-N2a-compliant Quad-OSA isengaphansi kwengcindezi, futhi ukukhiqizwa kwemishini yokubona engu-32 dB D2 iphansi.
Ngakolunye uhlangothi, ezingeni lesicelo, opharetha bebelindele ukuvuthwa okusheshayo kwebhajethi ephezulu ye-optical device / amamojula optical.Engqungqutheleni ye-China Optical Network / FTTH ka-2018 eyayise-Beijing ngoJuni kulo nyaka, ama-opharetha afana ne-China Mobile ne-China Telecom basadinga ngokusobala ukuthi amamojula we-D2 optical / optical module akhe uchungechunge lokuhlinzeka ngokuqhathaniswa oluvuthiwe ukusekela ukufakwa okugcwele kwe-Combo PON .