"OM" hauv kev sib txuas lus kho qhov muag hais txog "Optical Multi-mode". Optical hom, uas yog tus qauv rau multimode fiber ntau los qhia qib fiber ntau. Tam sim no, TIA thiab IEC txhais cov qauv fiber ntau thaj qaum yog OM1, OM2, OM3, OM4, thiab OM5.
Ua ntej tshaj, multimode thiab ib hom yog dab tsi?
Tib Hom Fiber yog ib qho khoom siv kho qhov muag uas tso cai rau tib hom kev sib kis. Cov tub ntxhais txoj kab uas hla yog hais txog 8 mus rau 9 μm thiab sab nraud txoj kab uas hla yog hais txog 125 μm.Multimode Optical Fiber tso cai rau cov hom sib txawv ntawm lub teeb kom xa mus rau ib leeg fiber ntau nrog ib txoj kab uas hla ntawm 50 μm thiab 62.5 μm. Ib hom fiber ntau txhawb kev sib kis ntev dua li multimode fiber ntau. Hauv 100Mbps Ethernet rau 1G Gigabit, ib hom fiber ntau tuaj yeem txhawb nqa kev sib kis ntau dua 5000m. Multimode fiber ntau tsuas yog tsim rau nruab nrab thiab luv luv thiab lub peev xwm me me fiber ntau optic kev sib txuas lus.
Dab tsiyog tNws txawv ntawm OM1, OM2, OM3, OM4, OM5?
Feem ntau, OM1 yog cov pa 62.5/125um.OM2 yog cov pa 50/125um; OM3 yog 850nm laser-optimized 50um core multimode fiber ntau. Hauv 10Gb / s Ethernet nrog 850nm VCSEL, qhov kev sib kis ntawm fiber ntau tuaj yeem ncav cuag 300m.OM4 yog qhov hloov kho dua tshiab ntawm OM3. OM4 multimode fiber ntau optimizes qhov sib txawv hom ncua (DMD) tsim los ntawm OM3 multimode fiber ntau thaum lub sij hawm high-ceev kis tau tus mob. Yog li ntawd, qhov kev ncua deb ntawm kev sib kis tau zoo heev, thiab kev sib kis ntawm fiber ntau tuaj yeem ncav cuag 550m. OM5 fiber ntau thaj qaum yog tus qauv tshiab rau fiber ntau thaj cords txhais los ntawm TIA thiab IEC nrog ib txoj kab uas hla ntawm 50/125 μm. Piv rau OM3 thiab OM4 fiber ntau thaj cords, OM5 fiber ntau thaj cords tuaj yeem siv rau kev siv bandwidth siab dua.Qhov bandwidth thiab qhov siab tshaj plaws nyob deb sib txawv thaum sib kis ntawm ntau theem.
OM5 fiber ntau thaj qaum yog dab tsi?
Paub tias Wideband Multimode Fiber Patch Cable (WBMMF), OM5 fiber ntau yog laser-optimized multimode fiber (MMF) tsim los qhia cov yam ntxwv bandwidth rau wavelength division multiplexing (WDM). Txoj kev faib fiber ntau tshiab yog tsim los txhawb ntau yam "luv" wavelengths ntawm 850 nm thiab 950 nm, uas tsim nyog rau kev siv bandwidth siab tom qab polymerization. OM3 thiab OM4 yog tsim los txhawb ib lub wavelength ntawm 850 nm.
Dab tsi yog qhov txawv ntawm OM3 thiab OM4?
1. Txawv lub tsho xim
Txhawm rau kom paub qhov txawv ntawm cov fiber ntau jumpers, cov xim sib txawv ntawm cov ntaub qhwv sab nrauv yog siv. Rau kev siv tsis yog tub rog, ib hom fiber ntau feem ntau yog lub tsho daj sab nrauv. Hauv multimode fiber ntau, OM1 thiab OM2 yog txiv kab ntxwv, OM3 thiab OM4 yog dej xiav, thiab OM5 yog dej ntsuab.
2.Different daim ntawv thov
OM1 thiab OM2 tau siv dav hauv cov tsev tau ntau xyoo, txhawb nqa Ethernet xa mus txog 1GB.OM3 thiab OM4 fiber ntau optic cables feem ntau siv hauv cov ntaub ntawv chaw cabling ib puag ncig los txhawb 10G lossis txawm 40/100G high-speed Ethernet paths.Designed rau 40Gb / s thiab 100Gb / s kis tau tus mob, OM5 txo tus naj npawb ntawm fibers uas yuav kis tau ntawm high speeds.
OM5 multimode fiber ntau nta
1. Tsawg fibers txhawb kev siv bandwidth siab dua
OM5 fiber ntau thaj qaum muaj kev ua haujlwm wavelength ntawm 850/1300 nm thiab tuaj yeem txhawb nqa tsawg kawg 4 wavelengths. Kev khiav hauj lwm wavelengths ntawm OM3 thiab OM4 yog 850nm thiab 1300nm. Uas yog hais tias, cov tsoos OM1, OM2, OM3, thiab OM4 multimode fibers muaj tsuas yog ib tug channel, thaum lub OM5 muaj plaub raws, thiab lub peev xwm kis tau los ntawm plaub lub sij hawm.Combining luv-wavelength division multiplexing (SWDM) thiab parallel. Kev siv thev naus laus zis, OM5 tsuas yog xav tau 8-core wideband multimode fiber ntau (WBMMF), uas tuaj yeem txhawb nqa 200/400G Ethernet daim ntaub ntawv, txo cov naj npawb ntawm fiber ntau. Rau qhov tsawg dua, cov nqi xaim ntawm lub network raug txo.
2.Kev kis tau tus mob ntev dua
Qhov kev ncua deb ntawm OM5 fiber ntau ntev dua li ntawm OM3 thiab OM4. OM4 fiber ntau yog tsim los txhawb qhov ntev ntawm tsawg kawg yog 100 meters nrog 100G-SWDM4 transceiver. Tab sis OM5 fiber ntau tuaj yeem txhawb nqa mus txog 150 meters ntev nrog tib lub transceiver.
3. Tsawg fiber ntau poob
Lub attenuation ntawm OM5 broadband multimode cable tau raug txo los ntawm 3.5 dB / km rau yav dhau los OM3, OM4 cable mus rau 3.0 dB / km, thiab bandwidth xav tau ntawm 953 nm tau nce.
OM5 muaj tib lub fiber ntau li OM3 thiab OM4, uas txhais tau hais tias nws yog tag nrho sib xws nrog OM3 thiab OM4. Nws tsis tas yuav hloov pauv hauv daim ntawv thov txuas uas twb muaj lawm OM5.
OM5 fiber ntau yog scalable thiab saj zawg zog, ua kom siab dua kev sib txuas lus network nrog tsawg dua multimode fiber cores, thaum tus nqi thiab lub zog siv tau qis dua ib hom fiber ntau.Yog li ntawd, yav tom ntej yuav siv dav hauv 100G / 400G / 1T ultra-loj cov ntaub ntawv chaw.