PON（Passive Optical Network) o lona uiga e leai se mea faigaluega ma fa'aaoga na'o le Optical Fiber ma Passive Components i le va o le OLT ( Optical Line Terminal) ma le ONU ( Optical Network Unit). Ma PON i le tekinolosi autu e faʻatino FTTB / FTTH, lea e masani ona faʻaaogaina le faʻailoga i le tele-point network structure.
O loʻo i ai le tele o mea i totonu ole PON Technology, ma o le PON Technology o loʻo faʻaauau pea ona toe faʻaleleia ma faʻafouina. XPON Tekinolosi na atiina ae mai APON, BPON, ma mulimuli ane EPON ma GPON. E eseese auala fa'asalalau ma tulaga fa'asalalau e atia'e i taimi eseese.
O le a le APON?
I le faaiuga o le 1990s, ITU ( International Telecommunication Union ) Muamua na tuʻuina atu le APON e faʻaaoga ai le Asynchronous Transfer Mode ( ATM) mo Fesoʻotaʻiga afifi. E fa'aogaina e le APON le fa'aogaina o le ATM, fa'atasi ai ma le fa'asoaina o le vaeluaga o le vaeluaga i luga o le fiber opitika ma le Optical Line Terminal, lea e fa'aitiitia ai le tau i le 20% ~ 40% nai lo le PDH/SDH fa'avae fa'avae i luga o le matagaluega. fesuia'i.
O le a le BPON?
Faatasi ai ma le televave o le atinaʻeina o Ethernet Technology, APON ua le toe faʻaaogaina. I le taimi nei, o le manatu ole Broadband Passive Optical Network (BPON) na faʻatulagaina. BPON o se faʻaleleia atili o le tulaga APON, muamua na taʻua o le APON, ae mulimuli ane suia i le BPON mo faʻamoemoega eseese. O le BPON e faʻavae i luga o le ATM protocol, faʻatasi ai ma luga ma lalo o le saoasaoa o le 155Mbpas ma le 622Mbps. I le taimi lava e tasi, E faʻaopoopoina le faʻaogaina o le bandwidth, puipuiga ma isi galuega, ma e mafai ona tuʻuina atu le Ethernet, faʻasalalauga vitio, laina lisi lisi ma isi auaunaga.
O le a le EPON?
Ona o le tau deployment maualuga o le BPON, na mulimuli ane suia e le EPON sili atu le tau-lelei ma vave.EPON (Ethernet Passive Optical Network) o se Ethernet Passive Optical Network.EPON PON tekinolosi e faavae i Ethernet tuufaatasia le lelei o tekinolosi PON ma Tekinolosi Ethernet, faʻaaogaina le Point to Multi-point structure, felauaiga fiber opitika,
Ona o le tau deployment maualuga o le BPON, na mulimuli ane suia e le EPON sili atu le tau-lelei ma vave.EPON (Ethernet Passive Optical Network) o se Ethernet Passive Optical Network.EPON PON tekinolosi e faavae i Ethernet tuufaatasia le lelei o tekinolosi PON ma tekonolosi Ethernet, faʻaaogaina le Point to- Multi-point structure, felauaiga fiber opitika passive, ma tuʻuina atu le tele o auaunaga i luga o Ethernet. Ona o le EPON e taugofie ma lelei e faʻapipiʻi, o le auala sili lea ona aoga e ausia ai "tolu fesoʻotaʻiga i le tasi" ma "maila mulimuli" fesootaiga.
O le a le GPON?
GPON (Gigabit-Capable Passive Optical Network) o le Gigabit Passive Optical Network poʻo le Gigabit Passive Optical Network.EPON ma le GPON faʻaogaina tulaga eseese, ma o le GPON e mautinoa lava e sili atu le alualu i luma, e mafai ona tuʻuina atu le tele o bandwidth ma ave le tele o tagata faʻaoga nai lo le EPON. tulaga lelei i le saoasaoa maualuga ma le tele o auaunaga pe a faatusatusa i le EPON, tekinolosi a le GPON e sili atu ona faigata ma o lona tau e maualuga atu nai lo le EPON.O le mea lea, i le taimi nei, o le EPON ma le GPON o tekinolosi sili ona faʻaaogaina mo le PON broadband avanoa, ma le filifiliga o lea. tekinolosi e sili atu ona faalagolago i luga o le tau o le avanoa fiber opitika ma manaoga pisinisi.GPON o le a sili atu ona fetaui i tagata e faaaogāina auaunaga i bandwidth maualuga, tele-auaunaga, QoS ma manaoga saogalemu, ma tekinolosi ATM e pei o le backbone.O le lumanai atinae o le bandwidth maualuga, mo se faataitaiga , EPON / GPON tekinolosi atiaʻe 10 G EPON / 10 G GPON, o le a faʻaleleia atili le bandwidth.
Iloa atili e uiga i APON,BPON,EPON,GPON
Aʻo faʻaauau pea ona faʻateleina le manaʻomia o le gafatia i luga o fesoʻotaʻiga fesoʻotaʻiga, e tatau foi ona faʻalauteleina le faʻaogaina o fesoʻotaʻiga avanoa e faʻafetaui ai lenei manaoga faʻatupulaia. O le lelei o tekinolosi PON e mafai ona faʻaitiitia ai le faʻaogaina o punaoa alava i tua ma faʻasaoina tupe faʻafaigaluega. Fesoʻotaʻiga fesoʻotaʻiga fetuutuunai, malosi malosi e faʻalauteleina; tomai, ma isi.