Umuyoboro wa fibre optique
Umuyoboro wa fibre optique ugizwe na fibre hamwe nicyuma kumpande zombi za fibre.Amacomeka agizwe na pin hamwe nuburyo bwo gufunga periferi. Ukurikije uburyo butandukanye bwo gufunga, umuhuza wa fibre urashobora gushyirwa mubwoko bwa FC, ubwoko bwa SC, ubwoko bwa LC, ubwoko bwa ST n'ubwoko bwa KTRJ.
Umuhuza wa FC akoresha uburyo bwo gufunga urudodo kandi ni optique ya fibre optique yimukanwa aribwo bwa mbere kandi bukoreshwa cyane.
SC ni urukiramende rwahujwe na NTT.Irashobora kwinjizwamo no gukurwaho idafite umurongo uhuza.Ugereranije na FC umuhuza, ifite umwanya muto wo gukoreramo kandi byoroshye gukoresha.Ibicuruzwa bya Ethernet yo hasi birasanzwe cyane.
Ihuza rya ST ryakozwe na AT&T kandi rikoresha uburyo bwo gufunga bayonet.Ibipimo nyamukuru byerekana ibipimo bihwanye na FC na SC bihuza, ariko ntibisanzwe mubikorwa bya sosiyete.Mubisanzwe bikoreshwa mubikoresho byinshi-bigakoreshwa kenshi iyo bihujwe nibindi bikoresho byababikora.
Amapine ya KTRJ akozwe muri plastiki kandi ashyizwe kumashanyarazi.Mugihe umubare winjiza nogukuraho wiyongera, hejuru yubukwe burambara kandi bikambara, kandi guhagarara kwigihe kirekire ntabwo ari byiza nkibikoresho bya ceramic pin.
Ubumenyi bwa fibre optique
Fibre optique ni umuyoboro utanga imiraba yumucyo. Fibre optique irashobora kugabanywamo fibre imwe ya fibre hamwe na fibre ya multimode kuva muburyo bwo kohereza optique.
Muri fibre imwe-imwe, itumanaho ryumucyo rifite uburyo bumwe bwibanze, bivuze ko urumuri rwoherezwa gusa kumurongo wimbere wa fibre.Kuko uburyo bwo gukwirakwiza uburyo bwirindwa rwose, fibre imwe-imwe ifite umurongo mugari kandi ikwiranye kumuvuduko mwinshi, intera ndende ya fibre itumanaho.
Muri fibre fibre, hariho uburyo bwinshi bwo kohereza optique.Bitewe no gutatanya cyangwa gukuramo, imikorere yo kohereza fibre optique irakennye, umurongo wumurongo uragufi, umuvuduko wohereza ni muto, kandi intera ni ngufi.
Ibyiza bya fibre biranga ibipimo
Imiterere ya fibre optique yakozwe mbere na fibre ya quartz fibre, na diameter yo hanze ya fibre ya multimode hamwe na fibre imwe yuburyo bwo gutumanaho byombi 125μm.
Kunyerera bigabanyijemo ibice bibiri: Core na Cladding layer. Ubwoko bumwe bwa fibre fibre ifite diameter yibanze ya 8 ~ 10μm.Diameter ya multimode fibre ifite ibice bibiri bisanzwe, naho diameter yibanze ni 62.5μm (Amerika isanzwe) na 50μm (igipimo cy’iburayi).
Imigaragarire ya fibre igaragara ifite ibisobanuro: 62.5μm / 125μm fibre fibre, muri yo 62.5μm bivuga diameter yibanze ya fibre, na 125μm bivuga diameter yo hanze ya fibre.
Ubwoko bumwe bwa fibre ikoresha uburebure bwa 1310 nm cyangwa 1550 nm.
Fibre ya Multimode ikoresha uburebure bwa 850 nm.
Ubwoko bumwe bwa fibre hamwe na fibre ya multimode irashobora gutandukana mumabara.Umubiri umwe wa fibre yo hanze ni umuhondo, naho umubiri wa fibre fibre yo hanze ni orange-umutuku.
Icyambu cya Gigabit
Ibyambu bya optiki ya Gigabit birashobora gukora muburyo bwagahato ndetse nubwikorezi bwumvikanyweho.Mu bisobanuro 802.3, icyambu cya optique ya Gigabit gishyigikira umuvuduko wa 1000M gusa kandi gishyigikira byuzuye-duplex (Byuzuye) na kimwe cya kabiri cya duplex (Igice) duplex.
Itandukaniro ryibanze cyane hagati yimodoka-kuganira nu gahato nuko code ya code yoherejwe mugihe byombi bishyizeho ihuza ryumubiri bitandukanye.Uburyo bwikora-bwohereza ubutumwa bwohereza / C / code, aribwo buryo bwimiterere ya code, kandi uburyo bwagahato bwohereza / I / code, aribwo buryo butagira umumaro.
Gigabit optique port yonyine - inzira yumushyikirano
Icya mbere: impande zombi zashyizwe muburyo bwimodoka
Amashyaka yombi yohererezanya / C / code ya stream.Niba ibintu bitatu bisa / C / code byakiriwe bikurikiranye kandi kode yakiriwe ihuye nuburyo bwakazi bwimpera yanyuma, undi muburanyi asubiza a / C / code hamwe na Ack igisubizo.Nyuma yo kwakira amakuru ya Ack, urungano rutekereza ko bombi bashobora kuvugana kandi bagashyira icyambu kuri leta ya UP.
Icya kabiri: impera imwe yashyizweho mu buryo bwikora-imishyikirano, impera imwe yashyizwe ku itegeko
Imodoka-imishyikirano iherezo yohereza / C / umugezi, naho iherezo ryagahato ryohereza / I / umugezi.Iherezo ryagahato ntirishobora guha urungano amakuru yumushyikirano wanyuma, kandi ntushobora gusubiza Ack igisubizo kurungano.Kubwibyo, auto-negotiation terminal DOWN.Nyamara, iherezo ryagahato ubwaryo rishobora kumenya / C / code, hanyuma ugatekereza ko urungano rwurungano ari icyambu gihuye nacyo, bityo rero shyira icyambu cyaho muri leta ya UP.
Icya gatatu: impande zombi zashyizwe muburyo buteganijwe
Amashyaka yombi yohererezanya / I / imigezi.Nyuma yo kwakira / I / umugezi, urungano rutekereza ko urungano arirwo rwambu ruhuza urungano.
Ni irihe tandukaniro riri hagati ya fibre ya multimode na singlemode?
Multimode:
Fibre ishobora kugenda kuva mumajana kugeza ku bihumbi byitwa fibre ya multimode (MM). Ukurikije ikwirakwizwa rya radiyo yerekana indangururamajwi yibanze hamwe na cladding, irashobora gukomeza kugabanywamo intambwe ya multimode fibre na fibre gahoro gahoro. Hafi ya byose fibre ya multimode ni 50/125 mm cyangwa 62.5 / 125 mm mu bunini, naho umurongo mugari (umubare wamakuru yatanzwe na fibre) mubisanzwe ni 200 MHz kugeza kuri 2 GHz. .Umucyo usohora diode cyangwa laser ikoreshwa nkisoko yumucyo.
Uburyo bumwe:
Fibre ishobora gukwirakwiza uburyo bumwe gusa yitwa fibre moderi imwe.Uburyo bumwe (SM) fibre refractive index profile isa na fibre yintambwe, usibye ko diameter yibanze ari nto cyane kuruta fibre ya multimode.
Ingano ya fibre imwe ya fibre ni 9-10 / 125μm kandi ifite umurongo utagira ingano hamwe nigihombo cyo hasi ugereranije na fibre ya multimode.Icyerekezo kimwe cya optique ya transcevers ikoreshwa mugukwirakwiza intera ndende, rimwe na rimwe ikagera kuri kilometero 150 kugeza 200.LED ifite imirongo migufi ya LD cyangwa imirongo ikoreshwa nkisoko yumucyo.
Itandukaniro n'amasano:
Ibikoresho byuburyo bumwe mubisanzwe bikora kuri fibre imwe yuburyo bumwe na fibre ya multimode, mugihe ibikoresho bya multimode bigarukira kubikorwa kuri fibre nyinshi.