Dawlad-goboleedka hore (O1)
TheONUGobolkan hadda waa la shiday oo wali waa LOS/LOF. Marka dhinaca hoose la helo, LOS iyo LOF ayaa meesha ka saarayaONUu guuro gobolka heeganka (O2).
Gobolka heeganka ah (O2)
TheONUgobolkan ayaa la helay qulqulka hoose wuxuuna sugayaa xuduudaha shabakada in la helo. MarkaONUhela fariinta Upstream_Overhead, habee kanONUiyadoo lagu salaynayo halbeegyada shabakadaha (tusaale, xadeeyayaasha, qaabka korantada, daahitaanka siman ee horay loo dhigay) oo loo wareejiyay gobolka lambarka taxanaha (O3).
Serial-Lambar-state (O3)
TheOLTwuxuu u diraa fariimaha Codsiga Lambarka Taxanaha dhammaanONUsgobolkaas si loo ogaado waxa cusubONUsiyo sidoo kale lambaradooda Serial. MarkaOLTdaahfurka cusubONU, ahONUsugayaaOLTin loo xilsaaroONU-ID. TheOLTku meeleeya ONU-ID fariinta Assign_ONU-ID.ONUu wareejinta gobolka kala duwan (O4) ka dib markii la helo ONU-ID.
Dawlad-goboleedka (O4)
Calaamadaha la kala qaado ee kala duwanONUswaa in la isku dhejiyaa marka ay yimaadaan goobtaOLT, kaas oo mid walbaONUwaxay u baahan tahay dib u dhac sinnaan, kaas oo lagu cabbiro heerka kala duwan. TheONUhela fariinta Ranging_Time oo u guura xaalada hawleed (O5).
Operation-state (O5)
Onusgobolkan wuxuu soo diri karaa xogta iyo fariimaha PLOAM ee hoos yimaada xakamayntaOLTiyoONUsgobolkan waxa kale oo uu samayn karaa xidhiidho kale sida loo baahdo. Marka kala duwanaanshuhu guulaysto, dhammaanONUsdir calaamadaha sida waafaqsan daahitaankooda la siman yahay si ay u joogteeyaan wada shaqaynta jir korka. Ishaarooyinka ay soo diraan kala duwanONUsiman doona atOLTsi gooni gooni ah, laakiin calaamad kastaa waxay si sax ah uga soo muuqan doontaa meesha ay tahay in ay ka muuqato jir-korka. LaalistaONUhawlgalka: Inta lagu jiro hawlgalka caadiga ah, theOLTlaga yaabaa in la laaloONUsi aad u dirto calaamadaha si aad u hesho tirada isku xigta ee kuwa kaleONUsama si loo cabbiro fogaanta kuwa kaleONUs. TheOLTjoojiso oggolaanshaha dhammaan xawaaraha kor u kaca ilaa wakhti, iyoONUu shaqeeya si caadi ah. Maadaama aan wax oggolaansho ah la helin, wax calaamad ah lama gudbin doono, taasoo keenaysa muddo xasilloon, si ayOLTka dhigaysa dhammaanONUsjoojinta calaamadaha gudbinta.
POPUP-state (O6)
TheONUXaaladda hawlgalka (O5) waxay gashaa xaaladan marka ay ogaato LOS ama LOF. Xaaladdan oo kale, theONUisla markiiba waxay joojisaa gudbinta calaamadaha, si ayOLTwaxay ogaan doontaa digniinta LOS ee tanONU. Marka fiber ODN la gooyo, badanONUsgeli doona gobolkan. Iyadoo loo eegayo isku halaynta shabakada, mid ka mid ah hababka soo socda waa in la isticmaalo:
Haddii beddelka waardiyaha la furo, dhammaanONUsdoonobeddelou gudub fiber-ka heeganka ah. Waqtigaan, dhammaanONUsqaban doona kala duwan mar kale, kaas oo loogu talagalayOLTwuxuu soo diraa fariin POPUP ah oo Baahinta si uu ugu wargaliyo dhammaan ONU-yada inay galaan gobolka kala duwan (O4).
Haddii aysan jirin beddelaad ilaalin ah oo aan ahaynONUwuxuu leeyahay awood ilaalin gudaha ahOLTdiraya fariin toos ah POPUP si uu u ogeysiiyoONUsi loo galo gobolka hawlgalka (O5). MarkaONUgalaan gobolka O5, theOLTu baahan in la ogaadoONUmarka hore iyo ka dib
Soo celi adeegii ONU Haddii ayONUkama soo kabsato LOS ama LOF, theONUma heli doono fariinta POPUP ee Baahinta ama fariinta POPUP ee la hago, iyoONUwaxa uu galaa xaalada bilowga ah (O1) ka dib wakhtiga TO2.
Xaalad-joojin-degdeg ah (O7)
MarkaONUhela Disable_Serial_Number fariinta leh "Disable" doorashada, ahONUWuxuu galaa xaaladda joogsiga degdega ah (O7) oo damisa laysarka. Gobolka O7,ONUwaa mamnuuc in la gudbiyo calaamadaha. Haddii ayONUsi guul ah kuma soo galo gobolka O7 iyoOLTwali way sii wadi kartaa helida signalka uu soo dirayONU, ahOLTwaxay dhalin doontaa digniin Dfi ah. Marka qaladka ahONUwaa la xaliyaa,OLTwuxuu soo diraa Disable_Serial_Number fariin leh "Enable" doorashada si loo dhaqaajiyo taasONU. Ka dib markii la helo fariinta, theONUwaxa uu galaa gobolka heeganka (O2), iyo dhamaan halbeegyada (ay ku jiraan lambarka isku xigxiga iyo ONU-ID) dib ayaa loo eegi doonaa.
Qodobbada kor ku xusan ee aqoonta waxay ku saabsan yihiin habka sharraxaaddaONUxaaladda iyo firfircoonida keenay Shenzhen HDV Phoelectron Technology LTD., Kaas oo ah soo saaraha ku takhasusay qalabka isgaarsiinta sida ay wax soo saarka ugu weyn. Qalabka la xidhiidha waxa ku jira: OLTONU/ IntelligentONU/ ACONU/ FiberONU/ CATVONU/ GPONONU/XPONONU/OLTqalab/OLTBedel/GPONOLT/ EPONOLTiyo wixii la mid ah, ku soo dhawoow isticmaalayaasha inay yimaadaan la talinta alaabta.
