I-PON (i-Passive Optical Network) yinethiwekhi ye-passive optical, oku kuthetha ukuba i-ODN (inethiwekhi yokusabalalisa i-optical) phakathi kwe-OLT (i-terminal ye-optical line) kunye ne-ONU (iyunithi yenethiwekhi ye-optical) ayinaso nasiphi na isixhobo esisebenzayo, kwaye isebenzisa kuphela imicu ye-optical. kunye namalungu okwenziwa.I-PON ithatha ubukhulu becala i-point-to-multipoint network structure, eyona teknoloji iphambili yokuqonda i-FTTB/FTTH.
Itekhnoloji ye-PON iqulethe umxholo omninzi, kwaye ihlaziywa ngokuphindaphindiweyo.Ukuphuhliswa kweteknoloji ye-xPON isuka kwi-APON, i-BPON, kwaye kamva i-GPON kunye ne-EPON.Ezi ziiteknoloji zeendlela ezahlukeneyo zothumelo kunye nemigangatho yothumelo ephuhliswe ngamaxesha ahlukeneyo.
Yintoni i-EPON?
I-EPON (i-Ethernet Passive Optical Network) yinethiwekhi yokukhanya ye-Ethernet.I-EPON isekelwe kwi-PON iteknoloji ye-Ethernet, edibanisa iingenelo zobuchwepheshe be-PON kunye nobuchwepheshe be-Ethernet.Yamkela i-point-to-multipoint structure kunye ne-passive optical fiber transmission ukubonelela ngeenkonzo ezininzi phezu kwe-Ethernet.Ngenxa yezoqoqosho kunye nokusebenza kakuhle kwe-EPON, yeyona ndlela isebenzayo yonxibelelwano ukuqonda "uthungelwano oluthathu kwindawo enye" kunye "nemayile yokugqibela".
Yintoni i-GPON?
I-GPON (i-Gigabit-Capable Passive Optical Network) yinethiwekhi ye-Gigabit passive optical okanye i-Gigabit passive network network.Imigangatho eyamkelwe yi-EPON kunye ne-GPON yahlukile.Kunokuthiwa i-GPON ihambele phambili kwaye inokudlulisa i-bandwidth eninzi, kwaye inokuzisa abasebenzisi abaninzi kune-EPON.Nangona i-GPON ineenzuzo ngaphezu kwe-EPON kumazinga aphezulu kunye neenkonzo ezininzi, iteknoloji ye-GPON inzima kakhulu kwaye ixabiso layo liphezulu kune-EPON.Ke ngoko, okwangoku, i-EPON kunye ne-GPON ziitekhnoloji ezinezicelo ezininzi zokufikelela kwi-PON yebroadband.Yeyiphi iteknoloji yokukhetha ixhomekeke ngakumbi kwiindleko zokufikelela kwifiber optical kunye neemfuno zoshishino.I-GPON iya kulungeleka ngakumbi kubathengi abane-bandwidth ephezulu, iinkonzo ezininzi, i-QoS kunye neemfuno zokhuseleko kunye nobuchwepheshe be-ATM njengomqolo.Uphuhliso lwexesha elizayo luphezulu bandwidth.Ngokomzekelo, iteknoloji ye-EPON / GPON iphuhlise i-10 G EPON / 10 G GPON, kwaye i-bandwidth iya kuphuculwa ngakumbi.
Njengoko imfuno yomthamo wababoneleli bothungelwano iqhubeka ukwanda, ukuguquguquka kothungelwano lokufikelela kufuneka kwandiswe ukuhlangabezana nale mfuno ikhulayo.I-Fiber-to-the-home (FTTH) i-passive optical network (PON) ukufikelela kwinethiwekhi ye-optical network ngoku yeyona nto isetyenziswa kakhulu kwaye iphunyeziwe iteknoloji.Iinzuzo zeteknoloji yePON kukuba inokunciphisa umsebenzi we-backbone optical fiber resources kunye nokugcina utyalo-mali;ulwakhiwo lwenethiwekhi luguquguqukayo kwaye isakhono sokwandisa sinamandla;izinga lokungaphumeleli kwezixhobo ze-passive optical liphantsi, kwaye akulula ukuphazanyiswa yimeko yangaphandle;kunye nesakhono senkxaso yeshishini lomelele.