Intangiriro-leta (O1)
UwitekaONUmuri iyi leta imaze gukoreshwa kandi iracyari muri LOS / LOF. Iyo epfo imaze kwakirwa, LOS na LOF ikuraho, naONUyimukira kuri leta ihagaze (O2).
Guhagarara-leta (O2)
UwitekaONUmuri iyi leta yakiriwe kumurongo wo hasi kandi itegereje ibipimo byurusobe byakirwa. IyoONUyakira Upstream_Overhead ubutumwa, shiraho iONUhashingiwe kuri ibyo bipimo byurusobe (urugero, kubitandukanya, uburyo bwimbaraga, guteganya gutinda kuringaniza) no kwimurwa kuri numero yuruhererekane (O3).
Urutonde-Umubare-Leta (O3)
UwitekaOLTKohereza Serial-Umubare Gusaba ubutumwa kuri boseONUmuri iyo leta kuvumbura ibishyaONUkimwe nimero zabo. IyoOLTkuvumbura ibishyaONU, iONUKurindiraOLTKuriONU-ID. UwitekaOLTigenera ONU-ID binyuze mu butumwa bwa Assign_ONU-ID.ONUIyimura kuri leta (O4) nyuma yo kubona ONU-ID.
Ibihinduka (O4)
Ibimenyetso byanyujijwe bitandukanyeONUbigomba guhuzwa mugihe bageze kuriOLT, Kuri buriONUikeneye gutinda kuringaniza, bipimirwa muri leta zingana. UwitekaONUyakira ubutumwa bwa Ranging_Time akimukira muri leta ikora (O5).
Igikorwa-leta (O5)
Onusmuri iyi leta irashobora kohereza amakuru hamwe nubutumwa bwa PLOAM bugenzurwa naOLT, naONUmuri iyi leta irashobora kandi gushiraho andi masano nkuko bisabwa. Iyo urutonde rwatsinze, byoseONUohereza ibimenyetso ukurikije gutinda kwabo kuringaniza kugirango ukomeze guhuza ikadiri ya uplink. Ibimenyetso byoherejwe bitandukanyeONUKugera kuriOLTukwe, ariko buri kimenyetso kizagaragara neza aho kigomba kugaragara murwego rwo hejuru. HagarikaONUmu bikorwa: Mugihe gikora gisanzwe ,.OLTGuhagarikaONUkohereza ibimenyetso kugirango ubone umubare ukurikirana wabandiONUcyangwa gupima intera yabandiONU. UwitekaOLTguhagarika uburenganzira bwo kuzamura umurongo mugihe runaka, naONUikora muburyo busanzwe. Kubera ko nta ruhushya rwakiriwe, nta kimenyetso kizoherezwa, bikavamo igihe gituje, kugirangoOLTikora byoseONUguhagarika kohereza ibimenyetso.
POPUP-leta (O6)
UwitekaONUmuri reta ikora (O5) yinjira muriyi leta iyo ibonye LOS cyangwa LOF. Muri iyi Leta ,.ONUahita ahagarika kohereza ibimenyetso, kugirangoOLTKumenya LOS impuruza yibiONU. Iyo fibre ya ODN ihagaritswe, byinshiONUizinjira muri iyi leta. Kugirango urusobe rwizere, bumwe muburyo bukurikira bugomba gukoreshwa:
Niba kurinda izamu bishobotse, byoseONUubushakehindurahejuru kuri fibre ihagaze. Muri iki gihe, byoseONUImyitwarire Yongeye Kongera, Kuri iOLTyohereza ubutumwa bwa POPUP ubutumwa bwo kumenyesha ONU zose kugirango zinjire muri leta (O4).
Niba nta kurinda guhinduranya ariko iONUifite ubushobozi bwo kurinda imbere ,.OLTKohereza Ubutumwa bwa POPUP bwo kumenyesha iONUkwinjira mubikorwa (O5). IyoONUyinjira muri leta ya O5 ,.OLTbakeneye kumenyaONUmbere hanyuma
Kugarura serivisi ya ONU. NibaONUntabwo yakira muri LOS cyangwa LOF, iONUntabwo izakira ubutumwa bwa Broadcast POPUP cyangwa ubutumwa bwa POPUP, naONUyinjira muri leta yambere (O1) nyuma yigihe cya TO2.
Ibihe byihutirwa-Guhagarara-leta (O7)
IyoONUyakira ubutumwa bwa Disable_Serial_Number hamwe na "Guhagarika", iONUyinjira muri leta yihutirwa (O7) ikazimya laser. Muri Leta O7 ,.ONUbirabujijwe kohereza ibimenyetso. NibaONUntabwo yinjiye neza muri leta ya O7 naOLTBirashobora gukomeza kwakira ibimenyetso byoherejwe naONU, iOLTbizatanga impuruza ya Dfi. Iyo amakosa ya anONUByakemuwe, iOLTohereza ubutumwa bwa Disable_Serial_Number hamwe na "Gushoboza" kugirango ukore ibyoONU. Nyuma yo kwakira ubutumwa ,.ONUyinjira muri standby leta (O2), kandi ibipimo byose (harimo numero ikurikirana na ONU-ID) bizasubirwamo.
Ingingo zubumenyi zavuzwe haruguru zerekeye inzira yo gusobanura yaONUimiterere no gukora byazanywe na Shenzhen HDV Phoelectron Technology LTD., ni uruganda ruzobereye mubikoresho byitumanaho nkibicuruzwa byingenzi. Ibikoresho bifitanye isano birimo: OLTONU/ IntelligentONU / ACONU/ FibreONU/ CATVONU/ GPONONU/ XPONONU /OLTibikoresho /OLTHindura/ GPONOLT/ EPONOLTnibindi, ikaze abakoresha kuza kugisha inama ibicuruzwa.
