I-OLT yi-terminal yomgca we-optical, i-ONU yiyunithi yenethiwekhi ye-optical network (ONU), zonke zizixhobo zoqhagamshelwano zothungelwano lwe-optical transmission.Zimbini iimodyuli eziyimfuneko kwi-PON: I-PON (Inethiwekhi ye-Passive Optical: inethiwekhi ye-optical network).I-PON (inethiwekhi ye-optical passive) ibhekisela ku (inethiwekhi yokusabalalisa i-optical) ayiqulathanga naziphi na izixhobo zombane kunye nonikezelo lwamandla ombane, i-ODN iqulunqwe zizixhobo ezingabonakaliyo ezifana ne-optical splitter (Splitter), ayifuni izixhobo zombane ezisebenzayo ezibizayo.Inethiwekhi ye-passive optical ibandakanya i-terminal optical line (OLT) efakwe kwisikhululo sokulawula esiphakathi, kunye nebhetshi yeeyunithi ezixhasayo zenethiwekhi (ONUs) ezifakwe kwindawo yomsebenzisi.Inethiwekhi yokusabalalisa i-optical (ODN) phakathi kwe-OLT kunye ne-ONU iqulethe iifibers ze-optical kunye ne-splitter passive or couplers.
Iirutha kunye nokutshintsha zixhobo zokutshintshiselana ngedatha.
I-ODN (i-Optical Distribution Network) yinethiwekhi yentambo ye-FTTH esekelwe kwizixhobo ze-PON.Indima yayo kukubonelela ngomjelo wokuhanjiswa kwe-optical phakathi kwe-OLT kunye ne-ONU.Ukusuka kwimbono yokusebenza, i-ODN inokwahlulwa ibe ngamacandelo amane: i-subsystem ye-feeder optical cable, i-subsystem ye-optical cable yokusabalalisa, i-subsystem ye-cable optical cable kunye ne-fiber optical terminal subsystem ukusuka ekupheleni kweofisi ukuya ekupheleni komsebenzisi.
I-ONT yinxalenye ye-ONU.
I-FTTB "i-fiber optical kwisakhiwo", ii-ONU ze-16 zifakwe kwibhokisi yeyunithi kwi-corridor.Kukho ii-ONT ezili-16 kwi-ONU.I-ONT nganye ikhupha intambo yenethiwekhi (umqondiso wombane) kwaye ifikelela ekupheleni komsebenzisi ngamnye ngentambo yenethiwekhi kwi-corridor.
I-FTTH "i-fiber-to-ekhaya", ibeke i-1 ukuya kwi-16 i-splitter kwibhokisi yeyunithi kwi-corridor, kwaye ifike kumsebenzisi ngamnye ngefiber egqunyiweyo kwi-corridor, kwaye umsebenzisi ngamnye uphelisa i-ONT.Ilingana nokudiliza i-ONU, ukuze isixhobo se-terminal sisondele ngokungenasiphelo kumsebenzisi.
I-ONT inokuqondwa njenge-ONU enezibuko elinye kuphela.