Hamwe nogutezimbere kwiterambere ryihuta ryubwubatsi kandi bikenewe kubaka ubuzima bwubwenge bwa digitale bushingiye kubushobozi bwurusobe rwa "gigabit" eshatu, abakoresha bakeneye intera ndende yohereza, umurongo mwinshi, kwizerwa gukomeye hamwe nubucuruzi buciriritse (OPEX), na GPON ishyigikira imirimo myinshi kugirango ihuze ibyo abakiriya bakeneye.
GPON ni iki?
GPON ni impfunyapfunyo ya Gigabit Passive Optical Network, isobanurwa na ITU-T ikurikirana ibyifuzo bya G.984.1 kugeza G.984.6.GPON ntishobora kohereza Ethernet gusa, ariko no kohereza ATM na TDM (PSTN, ISDN, E1 na E3).Ikintu nyamukuru kiranga ni ugukoresha amacakubiri ya pasiporo mumurongo wo gukwirakwiza fibre optique, hamwe nuburyo bwo kugera kuri byinshi, kugirango ukoreshe fibre optique iva mumwanya wo hagati utanga umuyoboro kugirango ukorere ingo nyinshi hamwe nabakoresha ubucuruzi buciriritse.
GPON, EPON na BPON
EPON (Ethernet Passive Optical Network) na GPON bifite ibisobanuro bisa cyane.Byombi ni imiyoboro ya PON kandi byombi ikoresha insinga za optique hamwe numurongo umwe wa optique. Igipimo cyiyi miyoboro yombi muburyo bwo hejuru ni hafi 1.25 Gbits / s.Kandi BPON (Broadband Passive Optical Network) na GPON nabyo birasa cyane.Bombi bakoresha fibre optique kandi barashobora gutanga serivisi kubakoresha 16 kugeza 32.Ibisobanuro bya BPON bikurikiza ITU-T G983.1, naho GPON ikurikiza ITU-T G984.1.Iyo porogaramu ya PON yatangiye kumenyekana, BPON niyo yakunzwe cyane.
GPON irazwi cyane ku isoko rya fibre optique.Usibye ikoranabuhanga ryateye imbere, rifite kandi inyungu zikurikira:
1.Urutonde: Fibre imwe-imwe irashobora kohereza amakuru kuva kuri kilometero 10 kugeza kuri 20, mugihe insinga zumuringa zisanzwe zigarukira kuri metero 100.
2.Umuvuduko: Igipimo cyohereza hasi ya EPON ni kimwe nigipimo cyacyo cyo hejuru, ni 1.25 Gbit / s, mugihe umuvuduko wohereza wa GPON ari 2.48 Gbit / s.
3.Umutekano: Bitewe no gutandukanya ibimenyetso muri fibre optique, GPON ni sisitemu itekanye.Kuberako zanduzwa mumuzinga ufunze kandi zirimo encryption, GPON ntishobora guterwa cyangwa gukanda.
4.Ibishoboka: insinga ya GPON fibre optique ihendutse kuruta insinga z'umuringa LAN, kandi irashobora kandi kwirinda ishoramari mu nsinga n'ibikoresho bya elegitoroniki bifitanye isano, bityo bizigama amafaranga.
5.Kuzigama ingufu: Bitandukanye ninsinga zisanzwe zumuringa mumiyoboro myinshi, ingufu za GPON ziyongereyeho 95%.Usibye gukora neza, imiyoboro ya gigabit passive optique nayo itanga igisubizo gihenze gishobora kongera abakoresha binyuze mumacakubiri, ikunzwe cyane mubice bituwe cyane.