Umuyoboro wa optique ni umuyoboro winjira ukoresha urumuri nkumuyoboro wohereza, usimbuza insinga z'umuringa, kandi ukoreshwa muri buri rugo.Umuyoboro mwiza wa optique muri rusange ugizwe nibice bitatu: umurongo wa optique wumurongo wa OLT, umuyoboro wa optique ONU, hamwe numuyoboro wo gukwirakwiza optique ODN, aho ibice byingenzi bigize umuyoboro wa OLT na ONU.
OLT ni iki?
Izina ryuzuye rya OLT ni Optical Line Terminal, umurongo wa optique.OLT ni umurongo wa optique, kandi ni ibikoresho byo mu biro bikuru byitumanaho.Byakoreshejwe muguhuza optique ya fibre optique.Ikora nka switch cyangwa router murusobe rwitumanaho gakondo.Nigikoresho cyo kwinjirira mumurongo wo hanze no kwinjira no gusohoka kwurusobe rwimbere.Bishyizwe ku biro bikuru, ibikorwa byingenzi byogukora ni gahunda yumuhanda, kugenzura buffer, no gutanga abakoresha-bayobora pasiporo optique ya interineti no gutanga umurongo.Mumagambo yoroshye, ashyira mubikorwa imirimo ibiri: hejuru, yuzuza uburyo bwo kugera kumurongo wa PON;no kumanuka, yohereza amakuru yabonetse kubikoresho byose byumukoresha wa ONU ukoresheje umuyoboro wa ODN.
ONU ni iki?
ONU ni Optical Network Unit.ONU ifite imirimo ibiri: Hitamo kwakira ibiganiro byoherejwe na OLT, kandi wakire igisubizo kuri OLT niba amakuru agomba kwakirwa;gukusanya no kubika amakuru ya Ethernet uyikoresha agomba kohereza, hanyuma ukohereza kuri OLT ukurikije idirishya ryatanzwe ryohereza Kohereza amakuru yabitswe.
Uburyo bwo kohereza ONUs mumiyoboro itandukanye ya FTTx nayo iratandukanye.Kurugero, FTTC (Fibre Kuri The Curb): ONU ishyirwa mubyumba bya mudasobwa nkuru yabaturage;FTTB (Fibre Kuri Inyubako): ONU ishyirwa mumasanduku ihuza koridor;FTTH (Fibre Kuri Murugo): ONU ishyirwa mubakoresha urugo.
ONT ni iki?
ONT ni Optical Network Terminal, igice cyanyuma cya FTTH, gikunze kwitwa "injangwe optique", gisa ninjangwe yamashanyarazi ya xDSL.ONT numuyoboro wa optique kandi ikoreshwa kubakoresha amaherezo.ONU bivuga umurongo wa optique.Hashobora kubaho indi miyoboro hagati yayo nu mukoresha wa nyuma.ONT ni igice cyingenzi cya ONU.
Ni irihe sano riri hagati ya ONU na OLT?
OLT nubuyobozi burangira, na ONU ni terminal;serivisi ya ONU itanga itangwa binyuze muri OLT, kandi byombi biri mubucuti-bucakara.ONU nyinshi zirashobora kumanikwa binyuze mumutwe munsi ya OLT.
ODN ni iki?
ODN ni Optical Distribution Network, numuyoboro wumubiri wo gukwirakwiza optique hagati ya OLT na ONU.Igikorwa nyamukuru nukuzuza ibyerekezo byombi byohereza ibimenyetso bya optique.Mubisanzwe ibyo bihujwe ninsinga za fibre optique, ihuza optique, ibice bya optique, hamwe nogushiraho.Ibikoresho bifasha igikoresho bigizwe na optique itandukanya.
