Dziko Loyamba (O1)
ONU m'chigawo chino yangoyatsidwa ndipo ikadali ku LOS / LOF.Mtsinje ukangolandiridwa, LOS ndi LOF zimachotsa, ndiONUimasunthira ku standby state (O2).
Standby-state (O2)
TheONUm'derali walandiridwa kumtsinje wapansi ndipo akudikirira kuti magawo a intaneti alandire.ONU ikalandira uthenga wa Upstream_Overhead, sinthani ONU potengera magawo a netiweki awa (mwachitsanzo, delimiters, mphamvu yamagetsi, kuchedwa kofananira) ndikusamutsira ku serial number state (O3).
Seri-Number-state (O3)
TheOLTimatumiza mauthenga a Serial-Number Request kwa onse a ONU omwe ali m'derali kuti apeze ma ONU atsopano komanso manambala awo amtundu.Pamene aOLTamapeza chatsopanoONU, ndiONUamadikiraOLTkuti mupatse ONU-ID.TheOLTimagawira ONU-ID kudzera mu uthenga wa Assign_ONU-ID.ONU imasamutsidwa kupita kugawo laling'ono (O4) atalandira ONU-ID.
Ranging-state (O4)
Zizindikiro zotumizidwa kuchokera ku ma ONU osiyanasiyana ziyenera kulumikizidwa zikafika paOLT, zomwe aliyenseONUimafunika kuchedwa kwa kufanana, komwe kumayesedwa mu chikhalidwe chosiyana.ONU ilandila uthenga wa Ranging_Time ndikusunthira kumalo ogwirira ntchito (O5).
Operation-state (O5)
Onus m'chigawo chino akhoza kutumiza deta ndi mauthenga a PLOAM pansi pa ulamuliro wa OLT, ndipo ONUs m'chigawo chino akhoza kukhazikitsanso maulumikizi ena monga momwe akufunira.Kuyambira kukakhala kopambana, ma ONU onse amatumiza ma siginecha malinga ndi kuchedwa kwawo kofananako kuti asunge kulumikizana kwa chimango cha uplink.Zizindikiro zotumizidwa ndi ma ONU osiyanasiyana zidzafika paOLTmosiyana, koma chizindikiro chilichonse chidzawonekera ndendende pomwe chiyenera kuwonekera mu uplink frame.Imitsani theONUpakugwira ntchito: Panthawi yogwira ntchito, OLT ikhoza kuyimitsa ONU kuti itumize zizindikiro kuti ipeze chiwerengero cha ma ONU ena kapena kuyeza mtunda wa ma ONU ena.TheOLTimasiya kuvomereza bandwidth yonse ya uplink kwa nthawi, ndiONUamagwira ntchito mwachizolowezi.Popeza palibe chilolezo cholandilidwa, palibe chizindikiro chomwe chidzatumizidwa, zomwe zimapangitsa kuti pakhale nthawi yabata, kotero kuti OLT imapangitsa kuti ONU onse ayimitse zizindikiro zotumizira.
POPUP-state (O6)
TheONUm'malo ogwiritsira ntchito (O5) amalowa m'derali pamene azindikira LOS kapena LOF.M'chigawochi, ONU nthawi yomweyo imasiya kutumiza ma signature, kotero kutiOLTadzazindikira alamu ya LOS ya iziONU.Pamene fiber ya ODN yasokonezedwa, ma ONU ambiri adzalowa m'derali.Pofuna kudalirika kwa netiweki, imodzi mwa njira zotsatirazi iyenera kugwiritsidwa ntchito:
Ngati kusintha kwa alonda kwayatsidwa, ma ONU onse asintha kupita ku fiber standby.Panthawiyi, ma ONU onse adzachita kuyambira kachiwiri, zomwe OLT imatumiza uthenga wa Broadcast POPUP kuti udziwitse onse a ONU kuti alowe m'madera osiyanasiyana (O4).
Ngati palibe kusintha kwachitetezo komaONUali ndi mphamvu zoteteza mkati, ndiOLTimatumiza uthenga wa Directed POPUP kuti udziwitseONUkulowa m'malo ogwirira ntchito (O5).Pamene ONU ilowa m'chigawo cha O5, aOLTkufunika kuzindikiraONUchoyamba ndiyeno
Bwezerani ntchito za ONU.Ngati ndiONUsichichira ku LOS kapena LOF, ONU sidzalandira uthenga wa Broadcast POPUP kapena Directed POPUP message, ndipo ONU imalowa mu chikhalidwe choyambirira (O1) pambuyo pa nthawi ya TO2.
Emergency-Stop-state (O7)
Pamene aONUimalandira uthenga wa Disable_Serial_Number ndi njira ya "Disable", ONU imalowa m'malo odzidzimutsa (O7) ndikuzimitsa laser.M'boma la O7, ONU ndiyoletsedwa kutumiza ma signature.Ngati ndiONUsichilowa bwino mu boma la O7 ndiOLTakhoza kupitirizabe kulandira chizindikiro chotumizidwa ndi ONU, OLT idzapanga alamu ya Dfi.Cholakwika cha ONU chikathetsedwa, vuto laOLTimatumiza Disable_Serial_Number uthenga ndi "Yambitsani" njira yoyambitsa ONUyo.Atalandira uthengawo, aONUimalowa mu standby state (O2), ndipo magawo onse (kuphatikiza nambala yotsatizana ndi ONU-ID) adzayang'ananso.
Zomwe zili pamwambazi za chidziwitso ndizokhudza ndondomeko yofotokozeraONUudindo ndi ma activation obwera ndi Shenzhen HDV Phoelectron Technology LTD., amene ndi wopanga okhazikika pa zipangizo zoyankhulirana monga katundu wake waukulu.Zida zogwirizana ndi izi: OLT ONU/IntelligentONU/AC ONU/Fiber ONU/CATV ONU/GPON ONU/XPONONU/OLT zida/OLT Switch/GPON OLT/EPONOLTndi zina zotero, alandileni ogwiritsa ntchito kuti abwere ku zokambirana zamalonda.
