Chii chinonzi Gpon?

GPON (Gigabit-Capable PON) tekinoroji ndiyo ichangoburwa chizvarwa chebroadband passive optical integrated access tekinoroji zvichibva pachiyero cheITU-TG.984.x.Iyo ine akawanda mabhenefiti akadai seyakakwira bandwidth, kushanda kwepamusoro, kufukidzwa kukuru, uye hupfumi hwevashandisi.Vazhinji vashandisi vanoitora seyakanaka tekinoroji kuona Broadband uye yakazara shanduko yekuwana network masevhisi.GPON yakatanga kukurudzirwa nesangano reFull-Service Access Network (FSAN) munaSeptember 2002. Pachikonzero ichi, ITU-T yakapedza kuumbwa kweITU-TG.984.1 uye G.984.2 muna March 2003. , The standardization of G.984.3 rakapedzwa muna Kukadzi naChikumi 2004, zvichigadzira mhuri yakajairika yeGPON.

Chii chinonzi Epon?

EPON (Ethernet Passive Optical Network), sekureva kunoita zita, iEthernet-based PON tekinoroji.Iyo inotora point-to-multipoint chimiro, passive optical fiber transmission, uye inopa akasiyana masevhisi paEthernet.Tekinoroji yeEPON yakamisikidzwa neIEEE802.3 EFM boka rinoshanda.Muna Chikumi 2004, boka rinoshanda reIEEE802.3EFM rakaburitsa chiyero cheEPON - IEEE802.3ah (chakabatanidzwa muchiyero cheIEEE802.3-2005 muna 2005).Mune iyi chiyero, tekinoroji yeEthernet nePON inosanganiswa, tekinoroji yePON inoshandiswa muchikamu chemuviri, iyo Ethernet protocol inoshandiswa mune data link layer, uye kuwana kweEthernet kunoonekwa nekushandisa iyo PON topology.Naizvozvo, inosanganisa zvakanakira zvePON tekinoroji uye Ethernet tekinoroji: mutengo wakaderera, wakakwira bandwidth, yakasimba scalability, kuenderana neiyo iripo Ethernet, uye nyore maneja.