Feem ntau hais lus, muaj ob hom fibers: cov uas txhawb nqa ntau txoj kev nthuav tawm lossis kev hloov pauv yog hu ua multi-mode fibers (MMF), thiab cov uas txhawb nqa ib hom hu ua single-mode fibers (SMF). Tab sis qhov txawv ntawm lawv yog dab tsi? Nyeem tsab xov xwm no yuav pab koj tau txais cov lus teb.
Txheej txheem cej luam Ntawm Ib Hom Vs Multimode Fiber Optic Cable
Tib hom fiber ntau tso cai rau kev nthuav tawm tsuas yog ib hom teeb ntawm ib lub sijhawm, thaum multimode optical fiber tuaj yeem nthuav tawm ntau hom. Qhov sib txawv tseem ceeb ntawm lawv yog nyob rau hauv fiber core inch, wavelength & light source, bandwidth, xim sheath, nrug, nqi, thiab lwm yam.
Tib hom Vs Multimode Fiber, Qhov txawv yog dab tsi?
Lub sij hawm los piv ib hom vs. multimodeoptical fiber ntauthiab nkag siab lawv qhov sib txawv.
Core Diameter
Ib hom kab hluav taws xob muaj qhov loj me me, feem ntau 9μm, ua kom qis qis dua, bandwidths siab dua, thiab kev sib kis ntev dua.
Hauv qhov sib piv, Multimode optical fiber ntau muaj qhov loj me me, feem ntau 62.5μm lossis 50μm, nrog OM1 ntawm 62.5μm thiab OM2 / OM3 / OM4 / OM5 ntawm 5μm. Txawm hais tias muaj qhov sib txawv ntawm qhov loj me, nws tsis yooj yim pom rau lub ntsej muag liab qab vim tias lawv me dua li tib neeg cov plaub hau dav. Kev tshuaj xyuas cov lej luam tawm ntawm fiber ntau optic cable tuaj yeem pab txheeb xyuas hom.
Nrog kev tiv thaiv cladding, ob qho tib si ib hom thiab multimode fibers muaj txoj kab uas hla ntawm 125μm.
Wavelength & Lub teeb Source
Multimode optical fiber, nrog nws cov tub ntxhais loj loj, siv cov khoom siv hluav taws xob qis xws li LEDs lub teeb thiab VCSELs ntawm 850nm thiab 1300nm wavelengths. Nyob rau hauv sib piv, ib hom cable nrog nws cov tub ntxhais me me, siv lasers los yog laser diodes los tsim lub teeb txhaj rau hauv lub cable, feem ntau ntawm wavelengths ntawm 1310nm thiab 1550nm.
Bandwidth
Ob hom fiber ntau no sib txawv hauv kev muaj peev xwm bandwidth. Ib hom fiber ntau muaj ze li qhov tsis muaj kev txwv bandwidth vim nws qhov kev txhawb nqa rau ib hom teeb pom kev zoo, ua rau qis qis qis thiab tawg. Nws yog qhov kev xaiv zoo tshaj plaws rau kev sib txuas lus ceev ceev tshaj qhov ntev.
Ntawm qhov tod tes, multimode fiber ntau tuaj yeem xa tawm ntau hom kev kho qhov muag, tab sis nws muaj kev cuam tshuam ntau dua thiab kev tawg loj dua, txwv nws txoj kev siv bandwidth.
Ib hom fiber ntau outperforms multimode optical fiber nyob rau hauv cov nqe lus ntawm bandwidth muaj peev xwm.
Attenuation
Ib hom fiber ntau muaj qis attenuation, thaum multimode fiber ntau cuam tshuam rau attenuation.
Nyob deb
Tib hom cable qhov qis attenuation thiab hom dispersion pab kom sib kis tau ntev dua li multimode. Multimode yog tus nqi-zoo tab sis txwv rau cov txuas luv luv (xws li, 550m rau 1Gbps), thaum ib hom siv rau kev sib kis ntev heev.
Nqi
Thaum xav txog tag nrho cov nqi, peb ntu ua lub luag haujlwm tseem ceeb.
Tus nqi installation
Tus nqi installation rau ib hom fiber ntau feem ntau pom tau tias siab dua li multimode cable vim nws qhov zoo. Txawm li cas los xij, qhov tseeb yog qhov sib txawv. ua tsaug rau kev tsim khoom ntau dua, txuag 20-30% piv rau multimode fiber ntau. Rau pricier OM3 / OM4 / OM5 fibers, ib hom tuaj yeem txuag tau li 50% lossis ntau dua. Txawm li cas los xij, tus nqi kho qhov muag optical transceiver kuj yuav tsum raug coj mus rau hauv tus account.
Optical Transceiver Nqe
Lub optical transceiver yog ib qho tseem ceeb ntawm cov nqi hluav taws xob hauv fiber ntau cable, suav nrog ib qho tseem ceeb, qee zaum txog li 70% ntawm tag nrho cov nqi. Tib hom transceivers feem ntau raug nqi 1.2 txog 6 npaug ntau dua li cov multimode. Qhov no yog vim ib hom siv lub zog loj laser diodes (LD), uas kim dua, thaum cov khoom siv ntau hom feem ntau siv cov nqi qis dua LEDs lossis VCSELS.
Tus nqi kho dua tshiab
Nrog rau kev nce qib sai hauv kev siv thev naus laus zis, cabling systems feem ntau xav tau kev txhim kho thiab nthuav dav. Ib hom fiber ntau optic cabling muaj ntau dua scalability, yooj, thiab adaptability. Multimode cable, vim nws txwv bandwidth thiab luv luv peev xwm, tej zaum yuav tawm tsam kom tau raws li cov kev xav tau yav tom ntej rau qhov ntev-ntev thiab siab-volume teeb liab kis tau tus mob.
Kev kho dua tshiab ib hom fiber ntau optic system yog qhov yooj yim dua, tsuas yog hloov pauv thiab transceivers yam tsis tas yuav nteg cov fibers tshiab. Nyob rau hauv sib piv, rau multimode cable, kho dua tshiab los ntawm OM2 rau OM3 thiab ces mus rau OM4 rau siab dua-ceev kis tau tus mob yuav raug nqi ntau dua, tshwj xeeb tshaj yog thaum hloov cov fibers nteg nyob rau hauv pem teb.
Nyob rau hauv cov ntsiab lus, multimode yog tus nqi-zoo rau luv nrug, thaum ib hom yog zoo tagnrho rau nruab nrab mus rau ntev kev deb.
Xim
Xim coding simplifies cable hom kev txheeb xyuas. TlA-598C muab kev lag luam tawm tswv yim xim code rau kev paub yooj yim.
Multimode OM1 thiab OM2 feem ntau muaj lub tsho txiv kab ntxwv.
OM3 feem ntau muaj cov tsho Aqua xim.
OM4 feem ntau muaj Aqua lossis Violet xim tsho.
OM5 yog xim txiv kab ntxwv ntsuab.
Ib hom OS1 thiab OS2 feem ntau nrog cov tsho daj.
Daim ntawv thov
Tib hom kab hluav taws xob feem ntau yog siv rau hauv cov pob txha mus ntev thiab cov kab ke hauv xov tooj cua, datacom, thiab CATV tes hauj lwm.
Ntawm qhov tod tes, multimode cable feem ntau yog siv rau hauv cov ntawv thov luv luv xws li cov chaw zov me nyuam, huab xam, kev ruaj ntseg, thiab LANs (Local Area Networks).
Xaus
Hauv kev xaus, ib hom fiber ntau cabling yog qhov zoo tagnrho rau kev xa mus ntev cov ntaub ntawv hauv cov cab kuj, MANs, thiab PONs. Multimode fiber ntau cabling, ntawm qhov tod tes, feem ntau siv hauv kev lag luam, cov chaw zov me nyuam, thiab LANs vim nws ncav cuag luv. Qhov tseem ceeb yog xaiv hom fiber ntau uas haum rau koj cov kev xav tau hauv network thaum xav txog tag nrho cov nqi fiber ntau. Raws li tus tsim network, kev txiav txim siab no yog qhov tseem ceeb rau kev teeb tsa lub network muaj txiaj ntsig thiab txhim khu kev qha.
Post lub sij hawm: Jun-19-2025