OLThe pahu laina opitika,ONUʻo ia kahi ʻāpana pūnaewele optical (ONU), ʻo lākou a pau nā mea hoʻopili pūnaewele hoʻoili optical. ʻElua mau modula pono i PON: PON (Passive Optical Network: passive optical network). PON (passive optical network) pili i (optical distribution network) ʻaʻole i loaʻa nā mea uila a me ka lako uila uila, ua haku ʻia ʻo ODN me nā mea passive e like me ka optical splitter (Splitter), ʻaʻole koi i nā lako uila hana pipiʻi. Loaʻa i kahi pūnaewele ʻike passive kahi pahu laina optical (OLT) i hoʻokomo ʻia ma ke kikowaena mana kikowaena, a me kahi pūʻulu o ke kākoʻo ʻana i nā ʻāpana pūnaewele optical (ONU) i hoʻokomo ʻia ma ka pūnaewele mea hoʻohana. ʻO ka pūnaewele hoʻolaha optical (ODN) ma waena o nāOLTaONUloaʻa nā fiber optical a me nā mea hoʻokaʻawale passive a i ʻole nā mea hoʻohui.
Nā Alaulaanā hoʻololihe lako hoʻololi ʻikepili.
ODN (Optical Distribution Network) he FTTH optical cable network ma muli o ka lako PON. ʻO kāna kuleana ʻo ia ka hāʻawi ʻana i kahi ala uila optical ma waena o kaOLTa me kaONU. Mai ka hiʻohiʻona hana, hiki ke hoʻokaʻawale ʻia ʻo ODN i ʻehā mau ʻāpana: ʻo ka subsystem cable optical feeder, ka subsystem optic cable subsystem, ka subsystem cable optical cable subsystem a me ka subsystem terminal fiber optical mai ka hopena o ke keʻena a hiki i ka hopena mea hoʻohana.
He ʻāpana koʻikoʻi o ONTONU.
FTTB "filaha optic i ka hale", 16ONUwaiho ʻia i loko o ka pahu hui ma ke alahele. Aia he 16 ONT ma kaONU. Hoʻopuka kēlā me kēia ONT i kahi uwea pūnaewele (hōʻailona uila) a hiki i kēlā me kēia mea hoʻohana ma o ke kaula pūnaewele ma ke alahele.
FTTH "fiber-to-the-home", e kau i ka 1 a 16 splitter i loko o ka pahu hui ma ke alahele, a laila hiki i kēlā me kēia mea hoʻohana ma o ka uhi uhi i loko o ke alahele, a hoʻopau kēlā me kēia mea hoʻohana i kahi ONT. Ua like ia me ka wehe ʻana i kaONU, no laila ua kokoke loa ka mea hoʻohana i ka mea hoʻohana.
Hiki ke hoʻomaopopo ʻia ʻo ONT ma ke ʻano heONUme ka awa hookahi.