PON (Passive Optical Network) numuyoboro wa optique, bivuze ko ODN (umuyoboro wo gukwirakwiza optique) hagati yaOLT(umurongo wa optique)ONU(optique y'urusobemiyoboro) ntabwo ifite ibikoresho bifatika, kandi ikoresha gusa fibre optique nibice bya pasiporo. PON ikoresha cyane cyane ingingo-kuri-kugwiza imiyoboro y'urusobekerane, nubuhanga nyamukuru bwo kumenya FTTB / FTTH.
Ikoranabuhanga rya PON ririmo ibintu byinshi, kandi bigenda bivugururwa buri gihe. Iterambere rya tekinoroji ya xPON riva kuri APON, BPON, hanyuma GPON na EPON. Ubu ni tekinoroji yuburyo butandukanye bwo kohereza hamwe nuburyo bwo kohereza bwateye imbere mubihe bitandukanye.
EPON ni iki?
EPON (Umuyoboro wa Ethernet Passive Optical Network) numuyoboro wa Ethernet passive optique. EPON ishingiye ku buhanga bwa PON bwa Ethernet, ihuza ibyiza by'ikoranabuhanga rya PON n'ikoranabuhanga rya Ethernet. Ifata ingingo-kuri-kugwiza imiterere hamwe na pasiporo optique ya fibre yoherejwe kugirango itange serivisi nyinshi hejuru ya Ethernet. Bitewe no gukoresha ubukungu kandi bunoze bwa EPON, nuburyo bwiza bwo gutumanaho kugirango tumenye "imiyoboro itatu muri imwe" na "kilometero yanyuma".
GPON ni iki?
GPON (Umuyoboro wa Gigabit-Umuyoboro wa Passive Optical Network) numuyoboro wa Gigabit passive optique cyangwa umuyoboro wa Gigabit. Ibipimo byemejwe na EPON na GPON biratandukanye. Birashobora kuvugwa ko GPON yateye imbere kandi irashobora kohereza umurongo mwinshi, kandi irashobora kuzana abakoresha benshi kuruta EPON. Nubwo GPON ifite ibyiza kurenza EPON ku giciro cyo hejuru na serivisi nyinshi, tekinoroji ya GPON iragoye kandi igiciro cyayo kiri hejuru ya EPON. Kubwibyo, kuri ubu, EPON na GPON ni tekinoroji hamwe na porogaramu nini ya PON yagutse. Ni ubuhe buryo bwo guhitamo buterwa cyane nigiciro cyo kubona fibre optique nibisabwa mubucuruzi. GPON izaba ikwiriye cyane kubakiriya bafite umurongo mwinshi, serivisi nyinshi, QoS nibisabwa byumutekano hamwe nikoranabuhanga rya ATM nkumugongo. Iterambere ry'ejo hazaza ni ryinshi. Kurugero, tekinoroji ya EPON / GPON yateje imbere 10 G EPON / 10 G GPON, kandi umurongo wa interineti uzarushaho kunozwa.
Mugihe ibyifuzo byubushobozi bwabatanga imiyoboro bikomeje kwiyongera, uburyo bwinshi bwo guhuza imiyoboro bigomba no kwagurwa kugirango iki cyifuzo gikure. Fibre-to-the-home (FTTH) pasitike optique ya optique (PON) optique ya neti ya enterineti nubu ikoreshwa cyane kandi ikoreshwa mubikorwa. Ibyiza bya tekinoroji ya PON nuko ishobora kugabanya umwuga wibikoresho bya fibre optique kandi ikabika ishoramari; imiterere y'urusobe iroroshye kandi ubushobozi bwo kwaguka burakomeye; gutsindwa igipimo cyibikoresho bya optique ni bike, kandi ntabwo byoroshye kubangamirwa nibidukikije byo hanze; n'ubushobozi bwo gushyigikira ubucuruzi burakomeye.