Mai raba gani yana ɗaya daga cikin mahimman na'urori masu wucewa a cikin hanyar haɗin fiber na gani, kuma galibi suna taka rawar tsagawa. Ana amfani da shi gabaɗaya a cikin tashar layin ganiOLTda tashar tashar sadarwa ta ganiONUna cibiyar sadarwa na gani na gani don gane tsagawar siginar gani.
Rarraba gani yana rarraba siginar gani da aka watsa a cikin fiber na gani ɗaya zuwa filaye masu gani da yawa. Akwai nau'ikan rarrabawa da yawa, 1 × 2, 1 × 4, 1 × N, ko 2 × 4, M × N. Babban gine-gine na FTTH shine:OLT(ƙarshen ɗakin ɗakin kwamfuta) -ODN (tsarin rarraba hanyar sadarwa mai ƙarfi)ONU(ƙarshen mai amfani), wanda a ciki ake amfani da mai raba na gani a cikin ODN don gane cewa masu amfani da ƙarshen ƙarshen suna raba haɗin PON ɗaya. A cikin tsarin PON, lokacin da rarraba gine-gine ya watse kuma ba daidai ba, kamar rarraba gidaje, nisa yana da nisa, kuma yawan masu amfani ya ragu, hanyar rarraba ta tsakiya na iya yin cikakken amfani da albarkatun da kuma rufe kewaye.
Ana iya amfani da mahaɗar gani guda ɗaya kawai a cikin hanyar sadarwa mara kyau, ko kuma ana iya amfani da masu rarrabawar gani da yawa tare don raba sigina na gani.
Alamomin aikin da ke shafar mahaɗar gani gabaɗaya sune kamar haka:
Asarar shigarwa
Asarar shigar da mai raba fiber yana nufin adadin dB na kowane fitarwa dangane da asarar gani na shigarwa. Gabaɗaya magana, ƙarami ƙimar asarar sakawa.
Raba rabo
An bayyana rabon rabon a matsayin rabon ƙarfin fitarwa na kowane tashar fitarwa na mai raba fiber. Gabaɗaya, rabon tsagawar na'urar gani na gani na PLC ana rarraba daidai gwargwado, kuma rabon tsagawar mahaɗar na'urar gani na gani na iya zama mara daidaituwa.
Saitin ƙayyadaddun rabo na rabon rabo yana da alaƙa da tsayin hasken da aka watsa. Misali, lokacin da reshe na gani yana watsa hasken 1.31 micron, rabon rabo na ƙarshen fitarwa biyu shine 50:50; lokacin watsa 1.5μm haske, ya zama 70: 30 (Dalilin da ya sa wannan ya faru shi ne saboda fiber splitter yana da wani bandwidth, wato, bandwidth na siginar gani da ake watsawa lokacin da rabon rabo ya kasance ba canzawa).
Kaɗaici
Warewa yana nufin keɓancewar hanyar gani ɗaya na mai raba fiber na gani daga siginar gani a wasu hanyoyin gani.
Dawo da asara
Asara na dawowa, wanda kuma ake kira hasarar tunani, tana nufin asarar wutar lantarki da siginar gani da aka dawo ko nuna ta hanyar katsewar fiber ko layin watsawa.
Mafi girman asarar dawowa, mafi kyau, don rage tasirin haske mai haske akan tushen haske da tsarin.
Bugu da ƙari, daidaituwa, kai tsaye, asarar polarization PDL, da dai sauransu suma ma'auni ne waɗanda ke shafar aikin mai raba gani. Rarraba fiber na gani yana ɗaya daga cikin mahimman na'urori masu wucewa a cikin hanyar haɗin fiber na gani, kuma ya dace musamman don haɗa MDF da kayan aiki ta ƙarshe a cikin hanyoyin sadarwa masu ƙarfiEPON, GPON, BPON, FTTX, FTTH, da dai sauransu) don rarraba siginar gani.