PON (Passive Optical Network) cibiyar sadarwa ce mai wucewa, wanda ke nufin cewa ODN (Cibiyar rarrabawar gani) tsakanin OLT (Terminal Line Terminal) da ONU (naúrar cibiyar sadarwa ta gani) ba ta da wani kayan aiki mai aiki, kuma tana amfani da filaye na gani kawai. da m sassa.PON galibi yana ɗaukar tsarin hanyar sadarwa na aya-zuwa-multipoint, wanda shine babbar fasaha don gane FTTB/FTTH.
Fasahar PON ta ƙunshi abubuwa da yawa, kuma ana sabunta su akai-akai.Haɓaka fasahar xPON daga APON, BPON, da kuma GPON da EPON daga baya.Waɗannan fasahohi ne na hanyoyin watsawa daban-daban da matakan watsawa waɗanda aka haɓaka a lokuta daban-daban.
Menene EPON?
EPON (Ethernet Passive Optical Network) babbar hanyar sadarwa ce ta Ethernet.EPON ya dogara ne akan fasahar PON na Ethernet, wanda ya haɗu da fa'idodin fasahar PON da fasahar Ethernet.Yana ɗaukar tsarin ma'ana-zuwa-multipoint da watsa fiber na gani na gani don samar da ayyuka da yawa a saman Ethernet.Saboda tattalin arziki da ingantaccen tura EPON, ita ce hanyar sadarwa mafi inganci don gane "cibiyoyin sadarwa guda uku a daya" da "karshe mile".
Menene GPON?
GPON (Gigabit-Capable Passive Optical Network) cibiyar sadarwa ce ta Gigabit m ko cibiyar sadarwar gani ta Gigabit.Ka'idodin da EPON da GPON suka ɗauka sun bambanta.Ana iya cewa GPON ya fi ci gaba kuma yana iya watsa ƙarin bandwidth, kuma yana iya kawo ƙarin masu amfani fiye da EPON.Kodayake GPON yana da fa'ida akan EPON a farashi mai yawa da ayyuka da yawa, fasahar GPON ta fi rikitarwa kuma farashinta ya fi EPON.Saboda haka, a halin yanzu, EPON da GPON fasaha ne masu amfani da ƙarin aikace-aikacen hanyar sadarwa na PON.Wace fasaha da za a zaɓa ya dogara da ƙarin farashin samun damar fiber na gani da buƙatun kasuwanci.GPON zai zama mafi dacewa ga abokan ciniki tare da babban bandwidth, ayyuka masu yawa, QoS da bukatun tsaro da fasahar ATM a matsayin kashin baya.Ci gaban gaba shine mafi girma bandwidth.Misali, fasahar EPON/GPON ta samar da 10 G EPON/10 G GPON, kuma za a kara inganta bandwidth.
Yayin da bukatar karfin masu samar da hanyar sadarwa ke ci gaba da karuwa, dole ne kuma a fadada iyawar hanyoyin sadarwa don biyan wannan bukatu mai girma.Fiber-to-the-gida (FTTH) hanyoyin sadarwa na gani na gani (PON) damar hanyar sadarwar gani a halin yanzu shine fasahar da aka fi amfani da ita da aiwatarwa.Amfanin fasahar PON shine cewa zai iya rage aikin albarkatun fiber na gani na kashin baya da kuma adana hannun jari;tsarin cibiyar sadarwa yana da sassauƙa kuma ƙarfin haɓaka yana da ƙarfi;ƙarancin gazawar na'urorin gani mara kyau ba su da ƙasa, kuma ba shi da sauƙi a tsoma baki da yanayin waje;kuma ikon tallafin kasuwanci yana da ƙarfi.