Optical fiber connector
Fiber optic connector muaj ib tug fiber ntau thiab ib tug plug ntawm ob kawg ntawm fiber. Lub ntsaws ntsaws muaj ib tus pin thiab ib qho kev ntsuas qhov ntsuas qhov nruab nrab.Raws li cov txheej txheem sib txawv, cov khoom siv fiber ntau tuaj yeem muab faib ua FC hom, SC hom, LC hom, ST hom thiab KTRJ hom.
Lub FC connector txais ib txoj xov locking mechanism thiab yog ib qho khoom siv kho qhov muag fiber ntau txuas uas yog qhov ntxov tshaj plaws thiab siv ntau tshaj plaws.
SC yog qhov sib koom ua ke tsim los ntawm NTT. Nws tuaj yeem raug tso ncaj qha thiab tshem tawm yam tsis muaj xov txuas. Piv nrog FC connector, nws muaj qhov chaw ua haujlwm me me thiab siv tau yooj yim. Low-end Ethernet cov khoom muaj ntau heev.
ST connector yog tsim los ntawm AT&T thiab siv ib tug bayonet locking mechanism.Lub ntsiab parameter ntsuas yog sib npaug rau FC thiab SC connectors, tab sis lawv tsis muaj nyob rau hauv lub tuam txhab daim ntawv thov. Lawv feem ntau yog siv nyob rau hauv ntau hom khoom siv thiab siv ntau zaus thaum docked nrog lwm cov tuam ntxhab cov khoom siv.
KTRJ tus pins yog ua los ntawm cov yas thiab yog positioned los ntawm steel pins. Raws li tus naj npawb ntawm insertions thiab tshem tawm nce, cov mating nto hnav thiab hnav, thiab lub sij hawm ntev stability tsis zoo li cov ceramic pin connectors.
Kev paub txog fiber ntau optical
Ib qho fiber ntau optical yog tus neeg xyuas pib uas xa lub teeb tsis muaj zog.Optical fiber tau muab faib ua ib hom fiber ntau thiab multimode fiber ntau los ntawm hom kev sib kis ntawm optical.
Nyob rau hauv ib hom fiber ntau, lub teeb kis tau tus mob tsuas yog ib qho tseem ceeb hom, uas txhais tau hais tias lub teeb kis tau tsuas yog nyob rau hauv lub puab core ntawm fiber.Vim lub hom dispersion yog kiag li zam, ib hom fiber ntau muaj ib tug dav kis band thiab yog haum. rau high-speed, ntev-kev sib txuas lus fiber ntau.
Hauv multimode fiber ntau, muaj ntau hom kev sib kis ntawm optical. Vim yog dispersion los yog aberration, qhov kis tau tus mob ntawm xws li ib tug optical fiber yog tsis zoo, lub zaus band yog nqaim, tus kis tau tus mob yog me me, thiab qhov kev ncua deb yog luv.
Optical fiber yam ntxwv parameter
Cov qauv ntawm cov khoom siv kho qhov muag yog prefabricated los ntawm quartz fiber pas nrig, thiab sab nraud txoj kab uas hla ntawm multimode fiber ntau thiab ib hom fiber ntau rau kev sib txuas lus yog 125.μm.
Lub slimming tau muab faib ua ob qhov chaw: cov tub ntxhais thiab cov txheej Cladding.Cov tub ntxhais ib hom fiber ntau muaj ib txoj kab uas hla ntawm 8 ~ 10.μm. Lub multimode fiber ntau txoj kab uas hla muaj ob tus qauv specifications, thiab cov tub ntxhais txoj kab uas hla yog 62.5μm (tus qauv US) thiab 50μm (tus qauv European).
Lub interface fiber specification muaj xws li cov lus piav qhia: 62.5μm / 125 hliμm multimode fiber ntau, ntawm 62.5μm yog hais txog cov tub ntxhais txoj kab uas hla ntawm lub fiber, thiab 125μm yog hais txog sab nraud ntawm lub fiber.
Tib hom fibers siv lub wavelength ntawm 1310 nm lossis 1550 nm.
Multimode fibers siv lub wavelength ntawm 850 nm.
Tib hom fiber ntau thiab multimode fiber ntau tuaj yeem paub qhov txawv ntawm cov xim. Ib hom fiber ntau sab nrauv lub cev yog daj, thiab lub multimode fiber ntau lub cev yog txiv kab ntxwv-liab.
Gigabit optical chaw nres nkoj
Gigabit optical ports tuaj yeem ua haujlwm nyob rau hauv ob qho tib si yuam thiab nws pib-kev sib tham hom.In 802.3 specification, Gigabit optical chaw nres nkoj txhawb tsuas yog 1000M ceev thiab txhawb nqa puv-duplex (Full) thiab ib nrab-duplex (Half) duplex hom.
Qhov tseem ceeb tshaj plaws ntawm qhov sib txawv ntawm nws pib-kev sib tham thiab kev quab yuam yog qhov code kwj xa tawm thaum ob qho tib si tsim kom muaj qhov sib txuas ntawm lub cev sib txawv. Cov kev sib tham pib pib xa / C / code, uas yog qhov kev teeb tsa code kwj, thiab hom yuam kev xa / I / code, uas yog cov kwj tsis ua haujlwm.
Gigabit optical chaw nres nkoj tus kheej - kev sib tham
Ua ntej: ob qhov kawg yog teem rau nws pib-kev sib tham hom
Ob tog xa ib leeg / C / code kwj. Yog tias peb qhov zoo tib yam / C / cov lej tau txais sib law liag thiab qhov tau txais cov lej sib tw ua haujlwm ntawm qhov kawg hauv zos, lwm tus neeg rov qab / C / code nrog Ack teb. Tom qab tau txais cov ntaub ntawv Ack, cov phooj ywg xav tias ob leeg tuaj yeem sib txuas lus nrog ib leeg thiab teeb tsa qhov chaw nres nkoj rau UP xeev.
Thib ob: ib kawg yog teem rau nws pib-kev sib tham, ib kawg yog teem rau yuav tsum tau
Qhov pib-kev sib tham kawg xa ib / C / kwj, thiab qhov kawg yuam xa / I / kwj. Kev quab yuam kawg tsis tuaj yeem muab cov phooj ywg nrog cov ntaub ntawv sib tham ntawm qhov kawg hauv zos, thiab tsis tuaj yeem rov qab Ack cov lus teb rau cov phooj ywg. Yog li ntawd, qhov pib-kev sib tham lub davhlau ya nyob twg DOWN.Txawm li cas los xij, qhov yuam kev kawg nws tus kheej tuaj yeem paub txog /C / code, thiab xav tias cov phooj ywg kawg yog qhov chaw nres nkoj uas sib phim nws tus kheej, yog li ncaj qha teeb tsa lub chaw nres nkoj hauv zos rau UP xeev.
Thib peb: ob qhov kawg yog teem rau hom yuav tsum tau ua
Ob tog xa ib leeg / kuv / ntws. Tom qab tau txais / I / kwj, cov phooj ywg suav hais tias cov phooj ywg yog qhov chaw nres nkoj uas phim cov phooj ywg.
Dab tsi yog qhov txawv ntawm multimode thiab singlemode fiber ntau?
Multimode:
Fibers uas tuaj yeem taug kev los ntawm ntau pua mus rau txhiab tus qauv yog hu ua multimode (MM) fibers.Raws li cov radial tis ntawm cov refractive index nyob rau hauv cov tub ntxhais thiab cov cladding, nws muaj peev xwm muab faib mus rau hauv cov kauj ruam multimode fiber ntau thiab gradual multimode fiber ntau. multimode fibers yog 50/125 μm los yog 62.5/125 μm nyob rau hauv loj, thiab lub bandwidth (cov ntaub ntawv kis tau los ntawm lub fiber) feem ntau yog 200 MHz mus rau 2 GHz.Multimode optical transceivers muaj peev xwm nqa mus txog 5 kilometers ntawm kis tau tus mob tshaj multimode fiber. . Lub teeb emitting diode lossis laser yog siv los ua lub teeb ci.
Ib hom:
Ib hom fiber ntau uas tuaj yeem tshaj tawm ib hom yog hu ua ib hom fiber ntau.Cov qauv ib hom (SM) fiber ntau refractive index profile zoo ib yam li cov kauj ruam fiber ntau, tshwj tsis yog tias cov tub ntxhais txoj kab uas hla yog me dua li multimode fiber ntau.
Qhov loj ntawm ib hom fiber ntau yog 9-10/125μm thiab muaj ib tug infinite bandwidth thiab qis poob tus yam ntxwv tshaj lub multimode fiber.Single-hom optical transceivers feem ntau yog siv rau kev sib kis mus ntev, qee zaum ncav cuag 150 mus rau 200 kilometers. LEDs nrog nqaim LD lossis spectral kab yog siv los ua lub teeb ci.
Qhov sib txawv thiab kev sib txuas:
Cov cuab yeej siv hom ib leeg feem ntau ua haujlwm ntawm ob hom fibers ib leeg thiab multimode fibers, thaum cov khoom siv multimode raug txwv rau kev ua haujlwm ntawm multimode fibers.