SMF Patch Cable thiab MMF Patch Cable
Niaj hnub no, kev hloov cov ntaub ntawv xa tawm yog qhov haujlwm tseem ceeb tshaj plaws uas yuav tsum tau ua los ntawm network designers. Raws li kev ntseeg siab thiab kom ncav cuag mus kom ze rau kev siv bandwidth thiab txhim kho kev ua haujlwm hauv lub lag luam, cov kab mob fiber ntau yog ua nrov nrov ntawm cov neeg tau txais kev pab. Fiber optic thaj hlua, tseem hu ua fiber ntau thaj cab, fiber optic jumpers, comprise ntawm lub taub fiber ntau txuas nrog raws li ib lub tshuab fiber ntau optical.
Ib txoj hlua fiber ntau tau muab faib ua ib hom fiber ntau (SMF) thaj thiab ntau hom fiber ntau (MMF) thaj ua kab los raws fiber ntau. Cov blog no qhia txog qhov sib txawv nruab nrab ntawm SMF thiab MMF ntawm ob peb yam. Kom nkag siab txog cov kev sib txawv no yuav pab tau koj cov kab mob fiber optic.
Raws li qhov tseem ceeb ntawm qhov teeb meem, nws lub ntsiab sib txawv ntawm qhov loj ntawm lawv cov cables, ib tug raug SMF muaj ib feem ntawm 8 mus rau 10 microns. Nyob rau hauv ib hom qauv cables, lub teeb mus ntawm qhov chaw ntawm cov tub ntxhais nyob hauv ib lub tsho ntev. Qhov no ua rau kom ceev ceev thiab ntev mus ntawm SMF dua MMF. Ntawm qhov tod tes, MMF siv ntau lub paths thiab muaj ib cov tub ntxhais loj zog, feem ntau 50-100 micrometers thiab loj dua wavelength ntawm lub teeb tshaj ib hom. Yog li ntawd, lub peev xwm ntawm MMF los sib sau ua ke sib npaug loj tshaj SMF, thiab ntau qhov teeb meem kis tau los ntawm MMF.
SMF yog tsim rau kev xa cov ntaub ntawv ntev tshaj mus thiab siv rau kev sib txuas sib txuas thiab kev tshawb fawb hauv cov cheeb tsam loj vim lawv tsuas muaj ib txoj kev taug mus rau kev ua haujlwm uas ua rau lub teeb pom kev ntau dua, raws li tau hais tseg tam sim no. Cov kev siv ntawm SMF muaj xws li cov tsev kawm ntawv qib siab thiab cable TV.
Raws li cov hom xov tooj cua muaj feem xyuam, MMF yog siv rau ncua deb ntawm 500m lossis tsawg dua. Txawm hais tias MMFs tsis tuaj yeem ncav cuag ntev dua, lawv tseem ua cov haujlwm tseem ceeb hauv ntau cov ntawv. Piv txwv, LED qhov chaw, thaum siv ntau hom cables, tuaj yeem tsim ntau lub wavelengths uas xa tawm ntawm lawv tus kheej ceev.
Thaum tham txog SMF thiab MMF, nws yuav tsum tham txog lawv qhov kev sib txuas lus ntawm fiber ntau ntawm opticivers: ib hom transceivers thiab ntau hom transceivers. Cov khoom siv fib fab siv sib xyaw ua ke nrog cov fiber ntau optic xa mus los ua kom luv los ntev ntev. SMF, thaum siv nrog cov tib-hom hloov ciaj cuag, ces ntev mus yuav pom tau. Cov npe hauv qab no feem ntau yog siv tib hom kev hloov: 1000BASE-LX, 1000BASE-ZX, 10GBASE-LR, thiab lwm yam.
Zoo sib xws, MMF hais txog ntau hom kev hloov xam nrog rau 1000BASE-SX, 10BASE-LRM, thiab ntxiv rau. Ntawm 1000BASE-SX cov hloov kev sib tw, Cisco GLC-SX-MM thiab GLC-SX-MM-RGD siv dav vim tias lawv ua tau zoo. Fiberstore tau tshaj Cisco GLC-SX-MM thiab GLC-SX-MM-RGD tuaj yeem muab tib lub zog xws li Cisco transceiver modules. Raws li rau 10GBASE-LRM transceivers, Cisco SFP-10G-LRM yog nrov ntawm cov neeg siv. Fiberstore tau tshaj Cisco SFP-10G-LRM yog tsim los khiav lag luam ntawm lub caij nyoog ntawm qhov ntev ntawm 1310nm ntawm MMF.
Saib sab nraud, SMF yog feem ntau daj nrog xiav lub txaj; thaum lub MMF, nyob rau tag nrho, zoo nkaus li txiv kab ntxwv nrog cov nplaum los yog cov xim dub.
Xav txog cov nyiaj txiag, SMF nws tus kheej tseem kim tshaj MMF. Tab sis judging ntawm kev kis ceev thiab nrug, txhua yam muaj nws qhov zoo thiab tsis zoo. Thaum koj xaiv cov hlua khi loj, zoo thiab ua tau zoo rau ntau feem pua.
Tom qab cov kev sib txawv no tau ua, tej zaum koj paub zoo dua los xaiv SMF los yog MMF rau koj daim ntawv thov. Ib qho ntawm SMFs thiab MMFs muaj nyob hauv FOCC. Tsis tas li ntawd, cov kab xev faj seeb uas muaj feem xyuam nrog fiber ntau tau hais los saum no, (Cisco GLC-SX-MM, GLC-SX-MM-RGD, Cisco SFP-10G-LRM). Nyob rau hauv ib lo lus, koj tuaj yeem pom ntau yam fiber optic jumpers thiab cov neeg tawm suab hauv FOCC.
