Isifunda-sokuqala (O1)
I-ONU kulesi sifundazwe isanda kufakwa amandla futhi iseku-LOS / LOF.Lapho umfula ongezansi sewamukelwe, i-LOS ne-LOF iqeda, kanyeI-ONUiya kusimo sokulinda (O2).
I-Standby-state (O2)
II-ONUkulesi simo samukelwe ekugelezeni komfula futhi silinde amapharamitha enethiwekhi ukuthi atholwe.Lapho i-ONU ithola umlayezo we-Upstream_Overhead, lungiselela i-ONU ngokusekelwe kulawa mapharamitha enethiwekhi (isb, ama-delimiters, imodi yamandla, ukubambezeleka kokulinganisa okusethiwe) bese kudluliselwa esimweni senombolo ye-serial (O3).
I-Serial-Number-state (O3)
IOLTithumela imilayezo ye-Serial-Number Isicelo kuwo wonke ama-ONU akuleso simo ukuze bathole ama-ONU amasha kanye nezinombolo zawo ze-serial.Lapho i-OLTuthola okushaI-ONU, iI-ONUilindele iOLTukuyinika i-ONU-ID.IOLTyabela i-ONU-ID ngomlayezo we-Assign_ONU-ID.I-ONU idlulisela esimweni esisukela (O4) ngemva kokuthola i-ONU-ID.
I-Range-state (O4)
Amasignali adlulisiwe avela kuma-ONU ahlukene kufanele avunyelaniswe lapho efika ku-OLT, ngayinye ngayinyeI-ONUidinga ukubambezeleka kokulinganisa, okukalwa kusimo esihlukanisiwe.I-ONU ithola umlayezo we-Ranging_Time bese ithuthela kusimo sokusebenza (O5).
I-Operation-state (O5)
I-Onus kulesi simo ingathumela idatha nemilayezo ye-PLOAM ngaphansi kolawulo lwe-OLT, futhi ama-ONU kulesi simo angakwazi futhi ukusungula okunye ukuxhumana njengoba kudingeka.Uma ukulinganisa kuphumelela, wonke ama-ONU athumela amasiginali ngokuya ngokulibaziseka kwawo okulinganayo ukuze kugcinwe ukuvumelanisa kohlaka lwe-uplink.Amasignali athunyelwe ama-ONU ahlukene azofikaOLTngokwehlukana, kodwa isignali ngayinye izovela lapho kufanele ivele khona kuhlaka lwe-uplink.Misa okwesikhashana i-I-ONUisebenza: Ngesikhathi sokusebenza okuvamile, i-OLT ingase imise okwesikhashana i-ONU ukuze ithumele amasignali ukuze ithole inombolo yokulandelana yamanye ama-ONU noma ukukala ibanga lamanye ama-ONU.IOLTiyayeka ukugunyaza wonke umkhawulokudonsa we-uplink isikhathi esithile, kanye ne-I-ONUisebenza ngendlela evamile.Njengoba kungekho gunya elitholwayo, akukho siginali ezodluliswa, okuholela esikhathini esithulile, ukuze i-OLT yenze wonke ama-ONU amise amasiginali okudlulisa.
I-POPUP-state (O6)
II-ONUesimweni sokusebenza (O5) ingena kulesi simo lapho ithola i-LOS noma i-LOF.Kulesi simo, i-ONU iyeka ngokushesha ukudlulisa amasignali, ukuze iOLTizothola i-alamu ye-LOS yalokhuI-ONU.Uma i-ODN fiber iphazamiseka, ama-ONU amaningi azongena kulesi simo.Ukuze uthole ukwethembeka kwenethiwekhi, enye yezindlela ezilandelayo kufanele isetshenziswe:
Uma ukushintsha konogada kunikwe amandla, wonke ama-ONU azoshintshela ku-fiber elindile.Ngalesi sikhathi, wonke ama-ONU azoqhuba kusukela futhi, lapho i-OLT ithumela umlayezo Wokusakaza we-POPUP ukwazisa wonke ama-ONU ukuthi afake isimo esisukela (O4).
Uma kungekho ukushintshwa kokuvikela kodwa i-I-ONUinamandla okuvikela angaphakathi, iOLTithumela umlayezo we-POPUP oqondiswe ukwazisa iI-ONUukufaka isimo sokusebenza (O5).Lapho i-ONU ingena ku-O5 state, iOLTidinga ukubona iI-ONUkuqala bese emva kwalokho
Buyisela isevisi ye-ONU.Uma iI-ONUayitholi ku-LOS noma i-LOF, i-ONU ngeke ithole umlayezo we-POPUP Wokusakaza noma umlayezo we-POPUP Oqondisiwe, futhi i-ONU ingena esimweni sokuqala (O1) ngemva kwesikhathi se-TO2.
I-Emergency-Stop-state (O7)
Lapho i-I-ONUithola umlayezo we-Diable_Serial_Number onenketho ethi "Khubaza", i-ONU ingena esimweni sokumisa isimo esiphuthumayo (O7) bese ivala i-laser.Esimweni se-O7, i-ONU ayivunyelwe ukudlulisa amasignali.Uma iI-ONUayingeni ngempumelelo ku-O7 state kanye ne-OLTisengaqhubeka nokuthola isignali ethunyelwe i-ONU, i-OLT izokhiqiza i-alamu ye-Dfi.Lapho iphutha le-ONU selixazululiwe, iOLTithumela umlayezo we-Diable_Serial_Number onenketho ethi "Vumela" ukuze uvule leyo ONU.Ngemva kokuthola umlayezo, i-I-ONUingena kusimo sokulinda (O2), futhi wonke amapharamitha (okuhlanganisa inombolo yokulandelana kanye ne-ONU-ID) azohlolwa kabusha.
Amaphuzu olwazi angenhla amayelana nenqubo yencazelo yeI-ONUisimo nokwenza kusebenze okulethwe yi-Shenzhen HDV Phoelectron Technology LTD., engumkhiqizi ogxile ezintweni zokuxhumana njengemikhiqizo yayo eyinhloko.Imishini ehlobene ihlanganisa: OLT ONU/IntelligentONU/AC ONU/Fiber ONU/CATV ONU/GPON ONU/XPONONU/OLT imishini/OLT Switch/GPON OLT/EPONOLTnokunye, wamukelekile abasebenzisi ukuthi beze ekuboniseni umkhiqizo.
