I-EPON yitekhnoloji yePON esekwe kwi-Ethernet.Isebenzisa iteknoloji ye-PON kwinqanaba lomzimba, i-Ethernet protocol kwi-data link layer, ukufikelela kwe-Ethernet usebenzisa i-PON topology, kunye nokufikelela kwinkonzo epheleleyo kwidatha, ilizwi, kunye nevidiyo usebenzisa i-fiber optical.
Inkcazo yemveliso ye-EPON:
I-EPON ithumela kwaye ifumane imiqondiso kwifiber enye.Lo matshini ubizwa ngokuba yifayibha enye i-bidirectional transmission mechanism.Ukusebenzisa iteknoloji ye-WDM ye-wavelength ye-multiplexing ye-teknoloji, ukuhanjiswa kwe-bidirectional ye-fiber enye kufezekiswa ngamaza ahlukeneyo (ezantsi kwe-1490nm, i-1310nm ekhuphukayo, kunye ne-1310nm ephezulu), kunye nemijelo yedatha ephezulu kunye nesezantsi ihanjiswa ngaxeshanye kwifiber enye ngaphandle kokuchaphazela omnye nomnye.
Ngelo xesha, i-1000 BASE-PX-10 U ichazwa / D kunye ne-1000 BASE-PX-20 U / D i-PON i-optical interfaces ixhasa ukuhanjiswa komgama ophezulu we-10 km kunye ne-20 km ngokulandelanayo.EPON inokubonelela nge-1.25 Gbit / s phezulu. kunye ne-bandwidth esezantsi.Yinethiwekhi ye-passive optical esekwe kwi-Ethernet.I-OLT ithatha i-Ethernet encapsulation kwaye idlulisa isakhiwo sesakhelo se-Ethernet.Ngoko ke, i-EPON isekelwe kwifomathi yesakhelo se-802.3.
Ngokwesivumelwano se-IEEE802.3ah-2004: amandla okuhambisa kwicala le-OLT likhulu kune-2dBm, kwaye ukuva ukuva ukuva ngu-<-27dBm;kuba amandla okuhambisa i-ONU makhulu kune--1dBm, ukuva ukuva ukuvakalelwa kukuba <-24dBm, ukulahlekelwa kwekhonkco yonke ye-optical ukuya kwi- <24dB, phantsi kwe-<23.5dB.Ukulahlekelwa kwe-EPON phezulu kwe-1310nm kunye nezantsi kwe-1490nm wavelengths kwi-G.652 fiber malunga ne-0.3dB / km.Isishwankathelo, uhlahlo lwabiwo-mali lwamandla yeyona nto ibalulekileyo kwi-EPON yomgama omde.
Iimpawu zemveliso yeEPON
①1.25Gbps i-symmetric yefayibha enye ikhonkco ledatha
②3.3V amandla ombane osebenzayo
③DDM umsebenzi wokuhlola ukuxilongwa kwedijithali
④Uphazamiseko lwe-Anti-electromagnetic, kunye nokhuseleko lwe-anti-static
⑤Ukuthobela i-IEC-60825 Iklasi ye-1 yomgangatho wokhuseleko we-laser
⑥Ubushushu bomsebenzi worhwebo: 0 ℃ ~ 70 ℃
Ukusetyenziswa kweteknoloji yeEPON
① Kubasebenzisi bakawonke-wonke, iindlela zosetyenziso ezifana ne-FTTH kunye ne-FTTB / C / Cab zinokusetyenziswa.
②Kubasebenzisi beshishini, iindlela ezahlukeneyo zokuphumeza ezifana ne-FTTO, i-FTTB, okanye i-FTTC inokwamkelwa ngokweemfuno zoshishino ezahlukeneyo kunye nesikali somsebenzisi.
③ "I-Global Eye" kunye nezinye izicelo ezifuna i-bandwidth ephezulu (ingakumbi i-bandwidth ephezulu) inokusebenzisa i-EPON njengendlela yokufikelela.I-PON ithatha indawo yokutshintsha kweLayer 2 / Layer 3 kwisisombululo se-analog networking, ngelixa igcina i-fiber transceivers eninzi, kwaye ayifuni izixhobo ze-transceiver optical video.
④ Kwimeko yokunqongophala kwezixhobo zefiber optical, ezifana neprojekthi yelali, iskimu sokuqhekeka samehlo esinokwahlulwa okunamanqanaba amaninzi kunye namandla angalinganiyo okwahlula angasetyenziswa, oko kukuthi, amandla awalingani xa kukho enye okanye iicores ezininzi. i-optical splitters idibanisa inqaku ngenqaku.
I-EPON ihlangabezana ngokupheleleyo neemfuno ze-bandwidth yokufikelela kubathengi benethiwekhi, kwaye inokwaba i-bandwidth ngokuguquguqukayo ngokweenguqu kwiimfuno zabasebenzisi, ukwenza ubomi babahlali boluntu bukhululeke ngakumbi, bukhuseleke kwaye bulungele.