Hano hari amanota 5 ya fibre fibre: OM1, OM2, OM3, OM4, na OM5. Ni iki kibatandukanya rwose?
Ku nkingi (kubabarira ibihano), ibitandukanya aya manota ya fibre nubunini bwibanze, imiyoboro, hamwe nubushobozi bwumurongo.
Optical multimode (OM) fibre ifite intangiriro ya 50 µm (OM2-OM5) cyangwa 62.5 µm (OM1). Intangiriro nini isobanura ko uburyo bwinshi bwurumuri bugenda munsi icyarimwe, bityo izina "multimode."
Umurage wo mu murage
Icyangombwa, OM1 ya 62.5 µm ingano yibanze bivuze ko idahuye nandi manota ya multimode kandi ntishobora kwemera guhuza. Kubera ko OM1 na OM2 byombi bishobora kugira amakoti yo hanze ya orange (kurwego rwa TIA / EIA), burigihe ugenzure umugani wanditse kumurongo kugirango urebe ko ukoresha umuhuza mwiza.
Fibre ya mbere ya OM1 na OM2 byombi byashizweho kugirango bikoreshwe hamwe na LED cyangwa imiyoboro. Guhindura imipaka ya LED nayo yagabanije ubushobozi bwa OM1 na OM2 kare.
Nyamara, kwiyongera gukenera umuvuduko bivuze ko fibre optique ikenera ubushobozi bwumurongo mwinshi. Injira laser-optimiz ya fibre fibre (LOMMF): OM2, OM3 na OM4, none OM5.
Gukoresha Laser
OM2, OM3, OM4, na OM5 fibre yagenewe gukorana na vertical-cavity surface-isohora lazeri (VCSELs), muri rusange kuri 850 nm. Uyu munsi, laser-optimiz OM2 (nkiyacu) nayo iraboneka byoroshye. VCSELs yemerera igipimo cyihuta cyihuta kuruta LED, bivuze ko fibre-optimiz fibre ishobora kohereza amakuru menshi cyane.
Ukurikije amahame yinganda, OM3 ifite umurongo mugari (EMB) wa 2000 MHz * km 850 nm. OM4 irashobora gutwara 4700 MHz * km.
Kubijyanye no kumenyekanisha, OM2 ikomeza ikoti rya orange, nkuko byavuzwe haruguru. OM3 na OM4 birashobora kugira ikoti yo hanze ya aqua (ibi ni ukuri kuri kabili ya Cleerline OM3 na OM4). OM4 irashobora kugaragara hamwe na jacket yo hanze "Erika violet". Niba uhuye na kabili ya magenta fibre optique, birashoboka ko OM4. Igishimishije, OM2, OM3, OM4, na OM5 byose ni fibre 50/125 µm kandi byose birashobora kwemera guhuza bimwe. Icyitonderwa, icyakora, ayo mabara ahuza code aratandukanye. Ihuza rya multimode imwe irashobora gushyirwaho ikimenyetso nka "optimiz ya fibre OM3 / OM4" kandi izaba ifite amabara ya aqua. Ihuza rya laser-optimiz ya multimode ihuza irashobora kuba beige cyangwa umukara. Niba hari urujijo, nyamuneka reba ibisobanuro bihuza byerekeranye nubunini bwibanze. Guhuza ingero yibanze nimwe mubyingenzi biranga imashini ihuza imashini, kuko yemeza ko ikimenyetso kizakomeza ubudahwema binyuze mumihuza.
Igihe cyo kohereza: Kanama-01-2022