Inkqubo ye-PON ithatha iteknoloji ye-multiplexing ye-time-division in the direction of uplink, kwaye i-ONU ithumela idathagrams kwi-uplink direction direction ngokwesitampu sexesha esabiwe yi-OLT.Xa i-ONU ikhupha ukukhanya ngaphandle kokwabela isitampu sexesha, iya kungqubana nemiqondiso yokukhutshwa yenye i-onus, eya kuchaphazela unxibelelwano oluqhelekileyo lwenye i-onus okanye yonke i-onus.Isitampu sexesha sibonisa ukuba i-ONU ekhohlakeleyo ayithumeli zimpawu zokukhanya phezulu.I-onus ekhohlakeleyo yahlulwe yaba ziindidi ezimbini, enye ikukukhanya okungacwangciswanga kwaye enye kukukhanya okude.Ukuqinisekisa ukusebenza okuqhelekileyo kwenkqubo ye-PON kwaye ugweme ukudideka kwinkqubo ngenxa yokuvela kwe-onus ekhohlakeleyo kwinkqubo.IHuawei inomsebenzi wokufumana ii-ONU ezikhohlakeleyo.Lo ngumsebenzi okwinkqubo yePON ejonga iitheminali ezingathumeli ukukhanya ngexesha elililo kwaye emva koko zibe zodwa.
Umsebenzi wokufumanisa i-ONU okhohlakeleyo ubandakanya iindlela ezimbini:
1. Ukufunyanwa kwe-OLT
Xa iOLTibhaqa i-ONU ekhupha ixesha elide, ithumela umyalelo wokumisa i-ONU ngokwe-ONU echongiweyo.Ngokuqhelekileyo, umsebenzi wokufumanisa i-OLT usetyenziswa kwi-ONU ekhupha ixesha elide, kwaye kukho impazamo ethile ekuchongweni kwe-ONU ephuma ngokungahleliwe.Ngokungagqibekanga, iOLT icima umsebenzi wokubona weOLT.Ngeli xesha, i-OLT inokubona ukuba kukho i-onus ekhupha ixesha elide kumgca we-PON.Nangona kunjalo, inokugweba kuphela ukuba kukho i-onus ekhupha ixesha elide phantsi kwe-PON port, kwaye ayikwazi ukufumana i-onus ethile.Kufuneka ifumane i-onus ekhohlakeleyo ngoqhawulo lwefiber kwisiza.IOLTinokuchonga i-ONU ethile ekhupha ukukhanya phantsi kwe-PON port kwaye inokulawula ukude ukucima amandla othumelo lwemodyuli yokukhanya ye-ONU;Umqathango wokuba zonke ii-ONU eziphantsi kojongano lwePON ziyafuneka ukuba zikwazi ukwahlula i-downlink ploam umyalezo kwaye ziphendule ngokuchanekileyo.
2. Isuntswana le-ONU
Xa iI-ONUIbhaqa ukukhutshwa kokukhanya okude, iya kukwahlula ngokuzenzekelayo.Lo msebenzi unokubona i-ONU ngokukhutshwa kokukhanya okude kunye nokukhutshwa kokukhanya okungahleliwe.
3. Unyino lolawulo lothungelwano ekufumaneni i-onus ekhohlakeleyo
Ngokwale migaqo ingentla, ulawulo lwenethiwekhi kufuneka luhlangabezane neemeko ezimbini xa kufumanisa i-onus ekhohlakeleyo.Enye kukuba umsebenzi wokufumanisa uvuliwe, kwaye enye kukuba yonke i-onus phantsi kwe-PON port inokuhlalutya umyalezo we-downlink ploam kwaye uphendule ngokuchanekileyo.
Ngoko ke, ulawulo lwenethiwekhi lunethuba elithile lokufumanisa kunye nokuchonga ulwazi lwezixhobo ze-rogueI-ONUye-ONU ekhupha ixesha elide, ebavumela ukuba bafumane indawo ye-ONU ngokudibanisa nolawulo lwempahla;Kwi-onus ekhohlakeleyo ekhupha ukukhanya ngokuqhubekayo, akukho ndlela ilungileyo yokufumana kunye nokubeka indawo ye-onus.
Indlela ephambili yokucubungula i-onus ekhohlakeleyo iseyi-step-by-step-out test kwi-splitter ye-optical splitter, ngoko kubaluleke kakhulu ukuhlaziya ulwazi malunga nokulawulwa kwempahla.
Oku ngasentla yingcaciso yolwazi "indlela i-ONU ekhohlakeleyo eyabakho ngayo" iziswe kuwe ngu-Shenzhen HDV photoelectric Technology Co., Ltd. Iimveliso zonxibelelwano eziveliswa yinkampani zigubungela;
Iindidi zeemodyuli: iimodyuli zefiber optical, Iimodyuli ze-Ethernet, iimodyuli ze-fiber optical transceiver, iimodyuli zokufikelela kwifiber optical, Iimodyuli ze-SSFP ezibonakalayo, kwayeI-SFP optical fibers, njl.Udidi lwe-ONU: EPON ONU, AC ONU, ifayibha optical ONU, CATV ONU, GPON ONU, XPON ONU, njl.
iklasi yeOLT: Ukutshintsha OLT, GPON OLT, EPON OLT, unxibelelwano OLT, njl.
Iimveliso zemodyuli ezingentla zinokubonelela ngenkxaso yeemeko ezahlukeneyo zenethiwekhi.Iqela le-R&D elinobuchwephesha kunye nelomeleleyo linokunceda abathengi abanemiba yobugcisa, kwaye iqela leshishini elicingayo nelinobuchule linokunceda abathengi bafumane iinkonzo ezikumgangatho ophezulu ngexesha lokubonisana kwangaphambili kunye nomsebenzi wasemva kokuvelisa.Wamkelekile kuweqhagamshelana nathikulo naluphi na uhlobo lombuzo.