Lub thoob ntiaj teb cabling txheem ISO / IEC 11801 faib cov multimode fibers rau hauv peb hom: OM1, OM2, thiab OM3. OM1 hais txog tsoos 62.5μm multimode fiber; OM2 hais txog tsoos 50μm multimode fiber ntau
OM3 yog hais txog cov tshiab nyuam qhuav ntxiv 50μm 10 Gigabit ntau hom fiber ntau; ib hom fiber ntau tau faib ua ob hom: OS1, OS2. OS1 yog hais txog kev kho qhov muag fiber uas ua tau raws li cov txheej txheem kho qhov muag fiber ntau txheej txheem G.652A thiab G.652B, uas yog, cov tsoos ib hom kho qhov muag fiber ntau
OS2 yog hais txog cov hluav taws xob uas ua tau raws li cov qauv fiber ntau G.652C thiab G.652D, thiab tseem hu ua ib-hom xoom-dej ncov fiber ntau lossis ib hom tsis tshua muaj dej siab. Raws li optical fiber technology thev naus laus zis, OS1 yuav maj mam hloov los ntawm OS2. Txawm li cas los xij, Ethernet kev qhia tawm tam sim no tsis cais qhov txawv ntawm OS1 thiab OS2. Nws cia siab tias ob qho yuav kis tau tus kabmob txawv hauv 40G thiab 100G qauv tom ntej. Lub OS2 ib hom fiber ntau tuaj yeem siv tau zoo dua rau txheej txheem Ethernet tiam tom ntej.
OS1 ib hom fiber ntau yog siv rau O band (Cov khoom siv hluav taws xob-qub): 1325-1360nm thiab C band (Cov khoom siv ua kom zoo nkauj-txheej txheem): 1530-1560nm. Raws li OS2 ib hom fiber ntau kov cov cawv ntawm dej nce siab ntawm 1383nm, nws cov khoom siv tau txuas rau plaub, hu ua: O band (thawj band-Original): 1325-1360nm, E band (txuas band-Txuas Ntxiv): 1360 - 1460nm, S band (luv band-luv): 1460-1530nm thiab C band (cov pab pawg ua pa-tshuab ua pa): 1530-1560nm, raws li rau L-band (ntev band-Ntev): 1650-1675nm thiab U-band (ultra- ntev band- Ultralong): 1625-1675nm tsis tau txhais nyob rau hauv OS2 fiber ntau.
