He aha te Gpon?

Ko te hangarau GPON (Gigabit-Capable PON) ko te reanga hou o te hangarau whakauru whakauru whatu whanui whanui i runga i te paerewa ITU-TG.984.x.He maha nga painga penei i te bandwidth teitei, te kaha nui, te kapinga nui, me nga atanga kaiwhakamahi whai rawa.Ko te nuinga o nga kaiwhakahaere e kii ana he hangarau pai ki te whakatutuki i te aunui me te panoni matawhānui o nga ratonga whatunga uru.Ko te GPON te tuatahi i whakaarohia e te whakahaere Whakaaetanga Whakaaetanga Whaiaro (FSAN) i te marama o Hepetema 2002. I runga i tenei kaupapa, ka oti a ITU-T te hanganga o ITU-TG.984.1 me G.984.2 i te Maehe 2003. , Ko te paerewa paerewa o G.984.3 i oti i te Hui-tanguru me Hune 2004, na reira i hanga ai te whanau paerewa o GPON.

He aha a Epon?

Ko te EPON (Ethernet Passive Optical Network), ko te ingoa e kii ana, he hangarau PON a Ethernet.Ka tangohia e ia te hanganga tohu-ki-maha, te tuku muka whatu hāngū, me te whakarato i nga momo ratonga i runga i te Ethernet.Ko te hangarau EPON kua whakatauhia e te roopu mahi IEEE802.3 EFM.I te marama o Hune 2004, ka tukuna e te roopu mahi IEEE802.3EFM te paerewa EPON - IEEE802.3ah (i whakauruhia ki te paerewa IEEE802.3-2005 i te 2005).I roto i tenei paerewa, ka honohia nga hangarau Ethernet me te PON, ka whakamahia te hangarau PON i roto i te paparanga tinana, ka whakamahia te kawa Ethernet i roto i te paparanga hononga raraunga, a ka mohiohia te urunga Ethernet ma te whakamahi i te topology PON.Na reira, ka whakakotahihia e ia nga painga o te hangarau PON me te hangarau Ethernet: te utu iti, te whanui teitei, te kaha o te tauine, te hototahi ki te Ethernet o naianei, me te whakahaere ngawari.