• about19

Yuav ua li cas mus cuag kaum kilometers ntawm ultra-ntev deb kis tau tus mob?Los ntawm ob lub thawv me me?Sau cov ntsiab lus paub sai sai!

Thaum nws los txog rau kev sib kis mus ntev, xav txog tus nqi, tus neeg tsav tsheb qub yuav xub xav txog ob yam: fiber ntau optic transceivers thiab txuas hniav.Nrog fiber ntau optics, siv transceivers.Yog tias tsis muaj fiber ntau kho qhov muag, nws nyob ntawm seb qhov chaw ib puag ncig puas tuaj yeem txuas rau tus choj.
Ntau tshaj kaum kilometers thiab kaum ob kilometers, tab sis kuj kom ruaj khov thiab txhim khu kev qha kis tau tus mob, optical fiber yog qhov tseem ceeb.
Niaj hnub no, cia peb tham txog cov kev daws teeb meem hauv kev sib txuas lus fiber ntau - optical fiber transceiver.
Lub transceiver yog ib qho khoom siv rau kev hloov pauv teeb liab, feem ntau hu ua fiber ntau optic transceiver.Qhov tshwm sim ntawm optical fiber transceivers converts twisted khub hluav taws xob teeb liab thiab kho qhov muag teeb liab rau ib leeg, kom ntseeg tau tias du kis tau tus mob ntawm cov ntaub ntawv packets ntawm ob lub tes hauj lwm, thiab nyob rau tib lub sij hawm ncua kev ncua deb ntawm lub network los ntawm 100 meters ntawm tooj liab xov hlau mus rau 100. kilometers (ib hom fiber ntau).
Nrog rau kev txhim kho txuas ntxiv ntawm thev naus laus zis, nws tau dhau los ua cov qauv tam sim no uas high-speed serial VO thev naus laus zis hloov cov cuab yeej sib luag I / O.Qhov ceev tshaj plaws thaum uas tig mus lub tsheb npav interface ceev yog 133 MB / s ntawm ATA7.Tus nqi hloov pauv tau muab los ntawm SATA1.0 specification tso tawm hauv 2003 tau mus txog 150 MB / s, thiab qhov theoretical ceev ntawm SATA3.0 tau mus txog 600 MB / s.Thaum lub cuab yeej ua haujlwm ntawm kev kub ceev, lub tsheb npav thaum uas tig mus ua rau muaj kev cuam tshuam thiab kev sib tham sib tham, uas ua rau cov xov hluav taws xob nyuaj heev.Kev siv cov serial transceivers tuaj yeem ua kom yooj yim layout tsim thiab txo tus naj npawb ntawm cov connectors.Serial interfaces kuj tseem siv zog tsawg dua li cov chaw nres nkoj sib txuas nrog tib lub tsheb npav bandwidth.Thiab hom kev ua haujlwm ntawm lub cuab yeej tau hloov pauv los ntawm kev sib kis mus rau qhov sib txuas mus rau serial kis tau tus mob, thiab cov serial ceev tuaj yeem ua ob npaug raws li qhov ntau zaus.
FPGA-raws li embedded Gb ceev theem thiab tsis tshua muaj zog architecture zoo, nws ua rau cov neeg tsim qauv siv cov cuab yeej EDA kom daws tau qhov teeb meem ntawm cov txheej txheem thiab kev hloov ceev ceev.Nrog rau daim ntawv thov dav ntawm FPGA, lub transceiver tau koom ua ke hauv FPGA, uas tau dhau los ua txoj hauv kev zoo los daws qhov teeb meem ntawm cov khoom siv sib kis ceev.
High-speed transceivers ua rau nws muaj peev xwm xa tau cov ntaub ntawv ntau point-to-point.Qhov kev sib txuas lus thev naus laus zis no ua rau siv tag nrho cov peev txheej ntawm kev sib kis nruab nrab thiab txo cov naj npawb ntawm cov kev sib txuas lus yuav tsum tau thiab cov cuab yeej pins piv rau cov ntaub ntawv sib txuas, yog li txo kev sib txuas lus zoo heev.nqi.Lub transceiver nrog kev ua tau zoo heev yuav tsum muaj qhov zoo ntawm kev siv hluav taws xob tsawg, me me, kev teeb tsa yooj yim, thiab kev ua haujlwm siab, kom nws tuaj yeem yooj yim sib xyaw rau hauv lub tsheb npav.Nyob rau hauv lub high-ceev serial cov ntaub ntawv kis raws tu qauv, kev ua tau zoo ntawm lub transceiver plays lub luag hauj lwm txiav txim siab nyob rau hauv tus nqi kis tau tus mob ntawm lub tsheb npav interface, thiab kuj muaj feem xyuam rau cov kev ua tau zoo ntawm lub tsheb npav interface system rau ib tug tej yam.Qhov kev tshawb fawb no txheeb xyuas qhov ua tiav ntawm kev ua haujlwm siab-ceev transceiver module ntawm FPGA platform, thiab tseem muab cov ntaub ntawv siv tau zoo rau kev ua tiav ntawm ntau yam kev sib txuas ceev ceev.
Lub thawv me me no muaj qhov cuam tshuam loj heev hauv cov phiaj xwm kev sib kis mus ntev, thiab feem ntau tuaj yeem pom hauv peb cov kev saib xyuas, wireless, optical fiber nkag thiab lwm yam xwm txheej.
yuav siv li cas
Optical fiber ntau transceivers feem ntau yog siv los ua khub, thiab tau muab tso rau ntawm qhov kawg nkag (uas tuaj yeem txuas nrog cov terminals xws li koob yees duab, APs, thiab PCs los ntawm cov keyboards) thiab cov chaw taws teeb tau txais qhov kawg (xws li chav computer / chav tswj nruab nrab, thiab lwm yam. ., tau kawg, nws kuj tseem siv tau rau kev nkag mus rau lub davhlau ya nyob twg), yog li tsim kom muaj qhov qis-latency, high-speed thiab ruaj khov kev sib txuas lus choj rau ob qho kawg.
Raws li txoj cai, ntev li ntev raws li cov kev qhia tshwj xeeb xws li tus nqi, wavelength, fiber ntau hom (xws li tib hom ib leeg-fiber khoom, lossis tib hom ib hom dual-fiber) zoo ib yam, ntau hom sib txawv, thiab txawm tias ib kawg ntawm fiber ntau transceiver thiab ib qho kawg ntawm qhov kho qhov muag module tuaj yeem ua tiav.kev sib txuas lus.Tab sis peb tsis pom zoo.
Ib leeg thiab Dual Fiber
Ib leeg-fiber transceiver txais WDM (wavelength division multiplexing) technology, ib kawg xa cov wavelength 1550nm, tau txais wavelength 1310nm, thiab lwm qhov kawg xa 1310nm thiab tau txais 1550nm, thiaj li paub txog cov ntaub ntawv tau txais thiab xa ntawm ib qho khoom siv fiber ntau.
Yog li ntawd, tsuas muaj ib qho chaw nres nkoj optical ntawm hom transceiver no, thiab ob qhov kawg yog tib yam nkaus.Yuav kom paub qhov txawv, cov khoom feem ntau raug txheeb xyuas los ntawm A thiab B xaus.
Tib fiber ntau transceiver (daim duab yog ib khub, xoom ib)
Qhov chaw nres nkoj kho qhov muag ntawm dual-fiber transceiver yog "ib khub" - qhov chaw nres nkoj xa ntawv cim nrog TX + qhov chaw txais tau cim nrog RX, ib qho kawg yog ib khub, thiab txhua qhov xa thiab txais ua lawv txoj haujlwm.Lub wavelengths ntawm TX thiab RX yog tib yam, ob leeg yog 1310nm.
Dual-fiber transceiver (daim duab yog ib khub, xoom ib)
Tam sim no, cov khoom tseem ceeb ntawm ib leeg-fiber khoom nyob rau hauv kev ua lag luam.Nyob rau hauv cov ntaub ntawv ntawm kev sib piv muaj peev xwm kis tau tus mob, ib leeg-fiber transceivers uas "txuag tus nqi ntawm ib fiber" yog obviously nrov.

Singlemode thiab Multimode
Qhov sib txawv ntawm ib hom optical fiber ntau transceivers thiab multi-mode optical fiber transceivers yog qhov yooj yim, uas yog, qhov sib txawv ntawm ib hom optical fiber ntau thiab ntau hom optical fiber ntau.
Lub cev txoj kab uas hla ntawm ib hom fiber ntau yog me me (tsuas yog ib hom ntawm lub teeb tso cai rau kev nthuav tawm), qhov tawg yog me me, thiab nws muaj kev cuam tshuam ntau dua.Qhov kev ncua deb ntawm kev sib kis yog ntau dua li ntawm ntau hom fiber ntau, uas tuaj yeem ncav cuag ntau dua 20 mais lossis ntau pua mais.Feem ntau siv li ntawm 2 km.
Qhov ntawd yog qhov tseeb vim hais tias cov tub ntxhais txoj kab uas hla ntawm ib hom fiber ntau yog me me, lub nqaj yog qhov nyuaj rau kev tswj, thiab tus nqi siab dua laser yuav tsum tau raws li lub teeb ci (ntau hom fiber ntau feem ntau siv LED teeb), yog li tus nqi yog siab dua li ntawm ntau hom fiber ntau, uas yog tus nqi ntau dua.
Tam sim no, muaj ntau yam khoom siv ib hom transceiver ntawm kev ua lag luam.Multi-mode data center daim ntaub ntawv muaj ntau dua, cov khoom siv tseem ceeb rau cov khoom siv tseem ceeb, kev sib txuas lus luv luv-bandwidth loj.
peb yam tseem ceeb
1. Ceev.Muaj cov khoom ceev thiab Gigabit muaj.
2. Kev sib kis deb.Muaj cov khoom ntawm ob peb kilometers thiab kaum ob kilometers.Ntxiv rau qhov kev ncua deb ntawm ob qhov kawg (optical cable nrug), tsis txhob hnov ​​​​qab saib qhov kev ncua deb ntawm qhov chaw nres nkoj hluav taws xob mus rau qhov hloov.Qhov luv dua qhov zoo.
3. Hom hom fiber ntau.Ib hom lossis ntau hom, ib leeg-fiber lossis ntau-fiber.


Lub sij hawm xa tuaj: Mar-17-2022