Menene tsarin hanyar sadarwa na hanyar sadarwa ta hanyar sadarwa (OAN)
Cibiyar sadarwa ta gani (OAN) tana nufin amfani da fiber na gani a matsayin babban hanyar watsawa don gane aikin watsa bayanai na hanyar sadarwa.An haɗa shi zuwa kullin sabis ta tashar tashar layin gani (OLT), kuma an haɗa shi da mai amfani ta hanyar cibiyar sadarwa ta gani (ONU).Cibiyar sadarwa ta hanyar fiber na gani ta haɗa da kayan aiki mai nisa- naúrar cibiyar sadarwa na cibiyar sadarwa da kayan aiki na tsakiya na kayan aiki-tashar layin layi, wanda aka haɗa ta hanyar watsawa.ONU.Sun kammala jujjuya ka'idojin sigina daga cibiyar sadarwar sabis (SNI) zuwa cibiyar sadarwar mai amfani (UNI) a cikin duk hanyar sadarwar shiga.Na'urar shiga kanta ita ma tana da damar sadarwar kuma tana iya ƙirƙirar nau'ikan topology iri-iri.A lokaci guda kuma, kayan aikin samun damar yana da ayyuka na kulawa na gida da saka idanu na nesa, samar da hanyar sadarwa ta kulawa ta hanyar watsa shirye-shiryen gani, da shigar da shi cikin cibiyar gudanarwar cibiyar sadarwa don gudanar da haɗin kai ta hanyar ka'idar gudanarwar cibiyar sadarwa daidai.
Matsayin OLT shine samar da hanyar sadarwa tsakanin hanyar sadarwa ta hanyar shiga da maɓalli na gida, da sadarwa tare da naúrar cibiyar sadarwar gani a gefen mai amfani ta hanyar watsawar gani.Ya raba gaba ɗaya aikin sauyawa na sauyawa daga samun damar mai amfani.Matsakaicin layin na gani yana ba da kulawa da kulawa da kanta da ƙarshen mai amfani.Ana iya sanya shi kai tsaye a ƙarshen ofishin musayar tare da musayar gida, ko ana iya saita shi a ƙarshen nesa.
Ayyukan ONU shine samar da hanyar sadarwa ta gefen mai amfani don hanyar sadarwa.Ana iya haɗa shi zuwa nau'ikan tashoshi masu amfani, kuma a lokaci guda yana da aikin juyawa na photoelectric da daidaitawa da ayyukan kulawa.Babban aikin ONU shine don dakatar da fiber na gani daga OLT, aiwatar da siginar gani da samar da mu'amalar sabis don ƙananan kasuwancin da yawa, masu amfani da kasuwanci da masu amfani da zama.Ƙarshen hanyar sadarwa na ONU shine mahaɗar gani, kuma ƙarshen mai amfani da shi shine mahallin lantarki.Don haka, ONU yana da ayyukan juyawa na gani/lantarki da lantarki/na gani.Hakanan yana da ayyuka na dijital/analog da analog/dijital hira na tattaunawa.Yawancin lokaci ana sanya ONU kusa da mai amfani, kuma wurinsa yana da sassauci sosai.
Ana rarraba hanyar sadarwa na gani na gani (OAN) zuwa cibiyar sadarwa na gani mai aiki (AON, Active Optical Network) da Passive Optical Network (PON, Passive Optica Network) dangane da rarraba tsarin.
Tsarin topological na cibiyar sadarwa ta hanyar samun fiber na gani yana nufin tsarin lissafi na layin watsawa da nodes.Yana nuna matsayin juna da shimfidar haɗin kai na kowane kumburi a cikin hanyar sadarwa.Tsarin topological na cibiyar sadarwa yana da tasiri mai mahimmanci akan aikin cibiyar sadarwa, farashi da aminci.Siffofin topological guda uku na asali sune: sifar bas, mai siffar zobe da siffar tauraro.Daga wannan, ana iya samun tauraro bas, tauraro biyu, zobe biyu, bas-bas da sauran fom ɗin aikace-aikacen da aka haɗa.Kowannensu yana da nasa halaye da kari na juna.