1.1 Basic function module
Covoptical fiber ntautransceiver suav nrog peb qhov yooj yim ua haujlwm modules: photoelectric media conversion nti, optical signal interface (optical transceiver integrated module) thiab hluav taws xob teeb liab interface (RJ45). Yog tias nruab nrog kev tswj hwm network, nws kuj suav nrog lub network tswj cov ntaub ntawv ua haujlwm.
fiber ntau optic transceiver yog Ethernet kis tau tus mob media conversion unit uas sib pauv luv luv twisted-pair hluav taws xob signals thiab ntev-ntev optical signals. Nws tseem hu ua photoelectric converter (Fiber Converter) nyob rau ntau qhov chaw. Cov khoom siv feem ntau yog siv nyob rau hauv qhov tseeb network ib puag ncig qhov twg Ethernet cable tsis tuaj yeem npog thiab covoptical fiber ntauyuav tsum tau siv los txuas ntxiv qhov kev ncua deb, thiab feem ntau yog nyob rau hauv daim ntawv thov txheej txheej ntawm broadband cheeb tsam cheeb tsam network; nyob rau tib lub sij hawm, nws yuav pab tau mus cuag lub xeem mais ntawm luboptical fiber ntaukab mus rau cheeb tsam nroog Lub Is Taws Nem thiab sab nraud kuj tau ua lub luag haujlwm loj.
Hauv qee qhov chaw lag luam loj, fiber ntau optical siv los ua qhov nruab nrab kis tau tus mob los tsim lub pob txha caj qaum thaum lub sij hawm tsim kev lag luam, thaum qhov nruab nrab ntawm cov LAN sab hauv feem ntau yog tooj liab hlau. Yuav ua li cas kom paub qhov kev sib txuas ntawm LAN thiab covoptical fiber ntaurov qab network? Qhov no yuav tsum tau hloov dua siab tshiab ntawm cov chaw nres nkoj sib txawv, cov kab sib txawv, thiab cov fibers sib txawv thiab lav qhov zoo ntawm qhov txuas. Qhov tshwm sim ntawm optical fiber transceivers converts cov hluav taws xob thiab kho qhov muag teeb liab ntawm cov twisted khub mus rau ib leeg, kom ntseeg tau tus du kis tau tus mob ntawm cov ntaub ntawv packets ntawm ob lub tes hauj lwm, thiab nyob rau tib lub sij hawm, nws ncua kev ncua deb ntawm lub network los ntawm 100 meters. ntawm tooj liab xov hlau mus rau ntau tshaj 100 kilometers (Ib hom fiber ntau).
1.2 Cov yam ntxwv tseem ceeb ntawm fiber ntau optic transceivers
1. Tag nrho pob tshab rau lub network raws tu qauv.
2. Muab ultra-low latency cov ntaub ntawv xa mus.
3. Txhawb kev ua haujlwm siab dav dav.
4. Siv lub siab ASIC nti kom paub cov ntaub ntawv kab ceev xa mus. Programmable ASIC concentrates ntau lub zog ntawm ib nti, thiab muaj qhov zoo ntawm kev tsim qauv yooj yim, kev ntseeg siab, thiab kev siv hluav taws xob tsawg, uas tuaj yeem pab cov cuab yeej kom tau txais kev ua tau zoo dua thiab qis dua.
5. Cov cuab yeej tswj xyuas lub network tuaj yeem muab kev kuaj xyuas network, hloov kho, qhia txog xwm txheej, qhia txog qhov xwm txheej txawv txav thiab tswj kev ua haujlwm, thiab tuaj yeem muab lub log ua haujlwm tiav thiab lub tswb.
6. Cov khoom siv khib nyiab tuaj yeem muab qhov kub-swappable muaj nuj nqi rau kev saib xyuas yooj yim thiab hloov kho tsis tu ncua.
7. Kev them nyiaj yug ua tiav qhov kev ncua deb (0 ~ 120km).
8. Cov khoom siv feem ntau siv 1 + 1 fais fab mov tsim, txhawb nqa ultra-wide fais fab mov voltage, thiab paub txog kev tiv thaiv fais fab thiab tsis siv neeg hloov.
1.3Kev faib tawm ntawm fiber ntau optic transceivers
Muaj ntau ntau hom fiber ntau optic transceivers, thiab lawv hom hloov raws li txoj kev sib txawv.
Raws li qhov xwm txheej ntawm fiber ntau, nws tuaj yeem muab faib ua ntau hom fiber ntau transceiver thiab ib hom fiber ntau transceiver. Vim qhov sib txawv ntawm cov fibers optical siv, qhov sib kis ntawm qhov transceiver txawv. Qhov kev sib kis dav dav ntawm ntau hom transceivers yog nyob nruab nrab ntawm 2 km thiab 5 kilometers, thaum cov kev pab cuam ntawm ib hom transceivers tuaj yeem nyob ntawm 20 mais mus rau 120 mais;
Raws li qhov xav tau fiber ntau optical, nws tuaj yeem muab faib ua ib leeg-fiber optical fiber ntau transceiver: cov ntaub ntawv xa thiab tau txais yog kis ntawm ib qho fiber ntau optical; lub dual-fiber optical fiber transceiver: cov ntaub ntawv tau txais thiab xa yog kis ntawm ib khub ntawm optical fibers.
Raws li qib ua haujlwm / tus nqi, nws tuaj yeem muab faib ua 10M, 100M fiber ntau optic transceivers, 10/100M adaptive fiber optic transceivers thiab 1000M fiber optic transceivers. Raws li cov qauv, nws tuaj yeem muab faib ua desktop (sawv-ib leeg) fiber ntau optic transceivers thiab khib-mounted fiber optic transceivers. Lub desktop optical fiber transceiver yog tsim rau ib tus neeg siv, xws li kev sib ntsib uplink ntawm ib qho kev hloov hauv txoj kev hauv tsev. Rack-mounted (modular) fiber optic transceivers yog tsim rau kev sib sau ntawm ntau tus neeg siv. Piv txwv li, chav tsev computer hauv nruab nrab ntawm ib lub zej zog yuav tsum ua kom tau raws li qhov sib txuas ntawm txhua qhov hloov pauv hauv zej zog.
zccording rau kev tswj hwm network, nws tuaj yeem muab faib ua network tswj hom optical fiber transceiver thiab non-network tswj hom optical fiber transceiver.
Raws li hom kev tswj hwm, nws tuaj yeem muab faib ua kev tswj hwm tsis yog network Ethernet fiber ntau optic transceivers: ntsaws thiab ua si, teeb tsa hom kev ua haujlwm ntawm qhov chaw nres nkoj hluav taws xob los ntawm kev hloov kho khoom siv. Network tswj hom Ethernet fiber optic transceiver: txhawb nqa-qib network tswj
Raws li hom kev siv fais fab, nws tuaj yeem muab faib ua lub zog hluav taws xob fiber ntau optic transceivers: built-in switching fais fab mov yog cov khoom siv hluav taws xob qib; Sab nraud fais fab fiber ntau optic transceivers: sab nraud transformer fais fab mov feem ntau yog siv nyob rau hauv cov khoom siv pej xeem. Qhov zoo ntawm qhov qub yog tias nws tuaj yeem txhawb nqa lub zog hluav taws xob ultra-wide, zoo dua paub txog kev ruaj ntseg hluav taws xob, lim thiab cov khoom siv hluav taws xob tiv thaiv, thiab txo cov ntsiab lus tsis ua hauj lwm los ntawm kev sib cuag; qhov zoo ntawm qhov tom kawg yog cov khoom siv me me thiab pheej yig.
Muab faib los ntawm kev ua haujlwm, hom puv duplex (tag nrho duplex) txhais tau hais tias thaum xa thiab txais cov ntaub ntawv raug faib los ntawm ob txoj kab sib txawv, ob tog hauv kev sib txuas lus tuaj yeem xa thiab tau txais tib lub sijhawm. Hom kev sib kis no Lub hom yog puv-duplex, thiab tag nrho-duplex hom tsis tas yuav hloov cov kev taw qhia, yog li tsis muaj sijhawm ncua los ntawm kev ua haujlwm hloov;
Ib nrab duplex hais txog kev siv tib txoj kab sib txuas rau ob qho tib si txais thiab xa. Txawm hais tias cov ntaub ntawv tuaj yeem xa mus rau ob qho kev qhia, ob tog hauv kev sib txuas lus tsis tuaj yeem xa thiab txais cov ntaub ntawv tib lub sijhawm. Txoj kev sib kis no yog ib nrab-duplex.
Thaum ib nrab-duplex hom tau txais yuav, lub transmitter thiab receiver ntawm txhua qhov kawg ntawm kev sib txuas lus tau raug xa mus rau cov kab kev sib txuas lus los ntawm kev txais / xa mus rau hloov cov kev taw qhia. Yog li ntawd, lub sij hawm ncua yuav tshwm sim.