EPON fasaha ce ta PON bisa tushen Ethernet.Yana amfani da fasahar PON a Layer na jiki, ka'idar Ethernet a layin haɗin bayanai, damar Ethernet ta amfani da PON topology, da cikakken damar yin amfani da bayanai, murya, da bidiyo ta amfani da fiber na gani.
Bayanin samfurin EPON:
EPON yana watsawa da karɓar sigina akan fiber guda ɗaya.Ana kiran wannan tsarin tsarin watsa nau'in fiber guda ɗaya.Yin amfani da fasahar rarraba raƙuman raƙuman raƙuman ruwa na WDM, ana samun watsawar fiber guda ɗaya tare da tsayin raƙuman ruwa daban-daban (ƙasa 1490nm, sama 1310nm), kuma rafukan bayanan sama da ƙasa ana watsa su lokaci guda akan fiber ɗaya ba tare da shafar juna ba.
A lokaci guda, 1000 BASE-PX-10 U an ayyana / D da 1000 BASE-PX-20 U / D PON musaya masu gani suna tallafawa matsakaicin watsa nisa na 10 km da 20 km bi da bi.EPON na iya samar da 1.25 Gbit / s sama. da bandwidth na ƙasa.Yana da hanyar sadarwa mara kyau ta hanyar Ethernet.OLT yana ɗaukar encapsulation Ethernet kuma yana watsa tsarin firam ɗin Ethernet.Saboda haka, EPON ya dogara ne akan tsarin firam na 802.3.
Bisa ga yarjejeniyar IEEE802.3ah-2004: ikon watsawa na gefen OLT ya fi 2dBm girma, kuma karɓar hankali shine <-27dBm;don ikon watsawa na ONU ya fi -1dBm, ƙimar karɓa shine <-24dBm, asarar duk hanyar haɗin kai har zuwa <24dB, ƙasa zuwa <23.5dB.Asarar EPON na sama 1310nm da magudanar ruwa na 1490nm a cikin G.652 fiber yana kusan 0.3dB / km.A taƙaice, kasafin kuɗin wutar lantarki shine mafi mahimmancin abu don EPON mai nisa.
EPON samfurin fasali
①1.25Gbps daidaitaccen hanyar haɗin bayanan fiber bidirectional guda ɗaya
②3.3V aiki ƙarfin lantarki
③DDM dijital ganewar asali aiki lura
④ Anti-electromagnetic tsoma baki, tare da anti-a tsaye kariya
⑤ Bi IEC-60825 Matsayin aminci na Laser Class 1
⑥ Kasuwancin zafin aiki: 0 ℃ ~ 70 ℃
Aikace-aikacen fasaha na EPON
① Ga masu amfani da jama'a, ana iya amfani da yanayin aikace-aikacen kamar FTTH da FTTB / C / Cab.
②Ga masu amfani da kasuwanci, nau'ikan aiwatarwa daban-daban kamar FTTO, FTTB, ko FTTC ana iya ɗauka bisa ga buƙatun kasuwanci daban-daban da sikelin mai amfani.
③ "Global Eye" da sauran aikace-aikacen da ke buƙatar ƙaramin bandwidth (musamman bandwidth na sama) na iya amfani da EPON azaman hanyar shiga.PON yana maye gurbin asalin Layer 2/Layer 3 canzawa a cikin maganin sadarwar analog, yayin da kuma yana adana yawancin fiber transceivers, kuma baya buƙatar kayan aikin transceiver na gani na bidiyo.
④ A cikin yanayin ƙarancin albarkatun fiber na gani, kamar aikin ƙauyen ƙauyen, ana iya amfani da tsarin tsagawar gani tare da tsagawar matakan da ba daidai ba, wato, ikon ba ya daidaita lokacin da kawai ɗaya ko da yawa cores The Na gani splitters suna haduwa aya da aya.
EPON cikakke ya cika buƙatun bandwidth na samun damar abokan cinikin cibiyar sadarwa, kuma yana iya haɓakawa da sassauƙa don rarraba bandwidth gwargwadon canje-canjen buƙatun mai amfani, yana sa rayuwar mazaunan al'umma ta fi dacewa, aminci da dacewa.