Boemo ba pele (O1)
TheONUseterekeng sena e sa tsoa sebelisoa 'me e ntse e le LOS / LOF. Hang ha metsi a tlaase a amoheloa, LOS le LOF li felisa, le hoONUe fallela boemong ba standby (O2).
Boemo ba maemo (O2)
TheONUnaheng ena e amohetsoe ho phallo e tlase 'me e emetse hore ho amoheloe mekhahlelo ea marang-rang. Ha theONUe amohela molaetsa oa Upstream_Overhead, lokisa faele eaONUe ipapisitse le li-parameter tsena tsa marang-rang (mohlala, li-delimiters, mokhoa oa matla, ho lieha ho lekanngoa esale pele) le ho fetisetsoa ho boemo ba nomoro ea serial (O3).
Serial-Nomoro-state (O3)
TheOLTe romella melaetsa ea Kopo ea Nomoro ho bohleLi-ONUboemong boo ho sibolla tse nchaLi-ONUhammoho le linomoro tsa bona tsa serial. Ha theOLTe sibolla e nchaONU, theONUe emetseOLTho e abelaONU-ID. TheOLTe fana ka ONU-ID ka molaetsa oa Assign_ONU-ID.ONUe fetisetsoa ho boemo bo fapaneng (O4) ka mor'a ho fumana ONU-ID.
Ranging-state (O4)
Lipontšo tse fetisitsoeng ho tsoa ho tse fapanengLi-ONUlokela ho synchronized ha ba fihla hoOLT, bakeng sa e mong le e mongONUe hloka tieho ea ho lekana, e lekantsoeng maemong a fapaneng. TheONUe amohela molaetsa oa Ranging_Time mme e fetela sebakeng sa ts'ebetso (O5).
Boemo ba tšebetso (O5)
Onusboemong bona ba ka romela data le melaetsa ea PLOAM tlas'a taolo eaOLT, leLi-ONUsebakeng sena se ka boela sa theha likhokahano tse ling ha ho hlokahala. Ha rangeing e atlehile, bohleLi-ONUromela matshwao ho ya ka tieho ya bona e lekanang ho boloka kgokahanyo ya foreimi ya uplink. Lipontšo tse rometsoeng ke tse fapanengLi-ONUe tla fihla mooOLTka thoko, empa lets'oao ka leng le tla hlaha hantle moo le lokelang ho hlaha ho foreime ea uplink. Emisa theONUts'ebetsong: Nakong ea ts'ebetso e tloaelehileng, theOLTe ka emisaONUho romela matshwao ho fumana nomoro ya tatellano ya tse dingLi-ONUkapa ho metha bohole ba tse dingLi-ONU. TheOLTe emisa ho lumella li-bandwidth tsohle tsa uplink ka nako e itseng, le hoONUe sebetsa ka tsela e tloaelehileng. Kaha ha ho tumello e amoheloang, ha ho na pontšo e tla fetisoa, e leng se etsang hore ho be le nako e khutsitseng, e le horeOLTe etsa tsohleLi-ONUemisa matshwao a ho fetisa.
POPUP-state (O6)
TheONUsebakeng sa ts'ebetso (O5) e kena sebakeng sena ha e lemoha LOS kapa LOF. Boemong bona, theONUhang-hang khaotsa ho fetisa matshwao a medumo, e le horeOLTe tla lemoha alamo ea LOS ea senaONU. Ha fiber ea ODN e sitisoa, tse ngataLi-ONUtla kena boemong bona. Bakeng sa ho ts'epahala ha marang-rang, e 'ngoe ea mekhoa e latelang e lokela ho sebelisoa:
Haeba phetoho ea molebeli e lumelletsoe, kaofelaLi-ONUthatoswitjhaho fihlela fiber e emeng. Ka nako ena, tsohleLi-ONUe tla tsamaisa ranging hape, bakeng sa eonaOLTe romela molaetsa oa Phatlalatso oa POPUP ho tsebisa bohle ba ONU ho kena naheng e fapaneng (O4).
Haeba ho se na ts'ireletso ea switching empa eONUe na le matla a ts'ireletso ea ka hare, theOLTe romella molaetsa oa Directed POPUP ho tsebisaONUho kenya boemo ba ts'ebetso (O5). Ha theONUkena naheng ea O5, theOLTe hloka ho tsebaONUpele ebe
Khutlisa tšebeletso ea ONU. Haeba eONUha e hlaphoheloe ho tloha LOS kapa LOF, theONUe ke ke ea amohela molaetsa oa Phatlalatso oa Phatlalatso kapa molaetsa oa Directed POPUP, leONUe kena sebakeng sa pele (O1) kamora nako ea TO2.
Boemo ba Emergency-Stop-state (O7)
Ha theONUe fumana molaetsa oa Disable_Serial_Number ka khetho ea "Disable", theONUe kena sebakeng sa boemo ba tšohanyetso (O7) mme e tima laser. Boemong ba O7, theONUe thibetsoe ho fetisa mats'oao. Haeba eONUha e kene ka katleho mmuso oa O7 leOLTe ntse e ka tsoela pele ho amohela lets'oao le rometsoeng keONU, theOLTe tla hlahisa alamo ea Dfi. Ha phoso eaONUe rarollotsoe, eaOLTe romela molaetsa oa Disable_Serial_Number o nang le khetho ea "Enable" ho kenya tšebetsong seoONU. Kamora ho amohela molaetsa, baONUe kena boemong ba standby (O2), 'me liparamente tsohle (ho kenyeletsoa nomoro ea tatellano le ONU-ID) li tla hlahlojoa hape.
Lintlha tse ka holimo tsa tsebo li mabapi le ts'ebetso ea tlhaloso eaONUboemo le ts'ebetso e tlisoang ke Shenzhen HDV Phoelectron Technology LTD., e leng moetsi ea khethehileng ka thepa ea puisano e le lihlahisoa tsa eona tse ka sehloohong. Thepa e amanang le eona e kenyelletsa: OLTONU/ IntelligentONU/ ACONU/ FiberONU/ CATVONU/ GPONONU/XPONONU/OLTthepa/OLTFetoha/GPONOLT/ EPONOLTjoalo-joalo, amohela basebelisi ho tla lipuisanong tsa sehlahisoa.
