Dab tsi yog qhov txawv ntawm OM1, OM2, OM3, OM4 thiab OM5 cable?
Multimode fibers raug txheeb xyuas los ntawm OM ("optical multimode") tsim raws li tau teev tseg hauv ISO / IEC 11801 tus qauv.
OM 1, rau fiber ntau nrog 200/500MHz * km overfilled launch (OFL) bandwidth ntawm 850/1300nm (feem ntau 62.5/125um fiber ntau)
OM 2Hom A1a.1, rau fiber ntau nrog 500/500MHz * km OFL bandwidth ntawm 850/1300nm (feem ntau 50/125um fiber ntau)
OM 3, Hom A1a.2, rau laser-optimized 50um fiber ntau muaj 2GHz * km zoo modal bandwidth (EMB, los yog laser bandwidth), tsim rau 10 Gb/s kis tau tus mob.
OM 4, Hom A1a.3, rau laser-optimized 50um fiber ntau muaj 4.7GHz * km EMB bandwidth tsim rau 10 Gb/s, 40 Gb/s, thiab 100 Gb/s kis tau tus mob.
OM4 vs 3
OM4 fiber ntau tau nyob rau hauv kev ua lag luam txij li xyoo 2005, muag li hwm OM3 lossis OM3 fiber ntau. OM4 tus qauv tsim qauv tsim cov npe thoob plaws txhua lub tuam txhab kom cov neeg siv khoom muaj lub tswv yim meej ntawm cov khoom uas lawv yuav. OM4 yog tag nrho rov qab sib xws nrog OM3 fiber ntau thiab sib koom tib lub tsho aqua sib txawv. OM4 tau tsim tshwj xeeb rau VSCEL laser kis tau tus mob thiab tso cai rau 10 Gig / thib ob txuas txuas mus txog 550 Meters (piv rau 300M nrog OM3).
Qhov zoo tshaj plaws modal bandwidth rau OM4 yog ntau tshaj ob npaug ntawm OM3 (4700 MHz.km rau OM4 v/s 2000 MHz.km rau OM3).
Thaum OM3 fiber ntau tseem yuav yog cov pov thawj yav tom ntej hauv ntau daim ntawv thov, tso cai nrawm ntawm 10GB / s txog 100GB / s, OM4 fiber ntau muab cov neeg siv ntev ntev thiab ntau chav wiggle hauv cov peev nyiaj kho qhov muag.
Ntawm Cables Plus, peb xav tias muab peb cov neeg siv khoom zoo tshaj plaws yog peb qhov tseem ceeb tshaj plaws. Txhawm rau tso cai rau peb cov khoom lag luam tau sau cov txheej txheem dav tshaj plaws, peb tau pib txav mus rau OM4 cov khoom lag luam. Thaum peb tseem muaj peev xwm muab OM3 fiber ntau thaj cables koj tau dhau los ua 5 xyoos dhau los, Cables Plus tab tom hloov mus rau tus qauv ntawm OM4 thaj cables rau kev ntim khoom. Peb xav tias qhov no muab peb cov neeg siv khoom nrog cov khoom zoo tshaj plaws ntawm kev ua lag luam thaum tseem tswj hwm ntawm peb cov nqi qis.
OM 5, rau laser-optimized 50um fiber ntau tshaj 28GHz * km EMB bandwidth tsim rau 40 Gb/s, thiab 100 Gb/s kis tau tus mob.
