Fiber Ntau Cov Ntaub Ntawv Sib Cuam Tshuam, FDDI
Taw qhia
Optical fiber faib cov ntaub ntawv interface FDDI yog kev sib txuas nrawm nrawm nrawm uas siv cov optical fiber ntau ua qhov nruab nrab. Nws tuaj yeem siv los txuas rau tib lub khoos phis nrog ib cheeb tsam hauv nroog.
Tus qauv FDDI coj mus siv IEEE802 architecture thiab LLC raws tu qauv, kawm FDDI' tus kheej MAC raws tu qauv, thiab tawm tswv yim txheej txheej nruab nrab nruab nrog cev (Lub Cev Txheej Nruab Nrab Nruab Nrab Tsuag, PMD) sublayer thiab lub cev txheej txheem txheej txheem (PHY) ntawm lub cev txheej. Kev Sublayer. Xyoo 1992, cov kev tshawb fawb ntawm cov txheej txheem interface ntawm FDDI thiab SONET kev sib tshuam tau ua tiav.
FDDI tshwj xeeb yog tsim los rau kev xa cov ntaub ntawv. Txhawm rau xa cov suab, duab thiab vis dis aus kev pab cuam, FDDI-II tus qauv yuav txuas ntxiv los ntawm FDDI theem pib hom (Basic hom) txhawb nqa pob ntawv hloov mus rau hom hybrid (hom Hybrid). Hom sib xyaw ua ke tuaj yeem txhawb nqa pob ntawv hloov mus rau hauv thiab sib hloov. Tam sim no, FDDI-tiam tom ntej hauv txoj kev kawm hu ua FFOL (FDDI Raws-Ntawm LAN).
Muaj pes tsawg leeg
Hauv qhov tseem ceeb, FDDI yog muaj plaub ntu ntu, txhua ntu muaj nws txoj haujlwm. Kev sib xyaw ua ke ntawm ntau ntu ua rau FDDI muab kev sib txuas ntawm cov txheej txheem sab nraud (xws li TCP / IP, IPX) thiab tshaj tawm xov xwm (xws li cov xov hluav taws xob).
Plaub qhov kev qhia tshwj xeeb ntawm FDDI yog kev tshaj tawm xov xwm nkag (MAC), txheej txheem lub cev raws txheej txheem (PHY), lub cev nruab nrab txheej txheej (PMD), thiab chaw tswj chaw nres tsheb (SMT). MAC qhia meej txog yuav ua li cas nkag mus rau hauv nruab nrab, suav nrog tus ncej hom, chaw nyob, kev token ua, cyclic redundancy check algorithm (CRC), thiab kev ua yuam kev rov ua haujlwm tseev kom muaj los ntawm kev cai; PHY qhia meej txog txoj kev sib kis thiab hloov cov txheej txheem, cov tseev kom ua ntawm lub moos, thiab lwm yam haujlwm; PMD qhia meej txog cov yam ntxwv uas cov khoom siv sib kis yuav tsum muaj, suav nrog qhov sib txuas ua fiber ntau (Fiber-optic Txuas), qib fais fab (Qib Qib Qib Qis), cov nuj nqi yuam kev (Bit-error Rate), fiber optic device (Optical Component) thiab txuas ( Cov khoom sib txuas); SMT qhia meej FDDI chaw nres tsheb teeb tsa, lub nplhaib kev teeb tsa, thiab lub nplhaib tswj cov nta, suav nrog chaw nres tsheb thiab kev tshem tawm, pib ua haujlwm, sib cais txhaum thiab rov ua haujlwm, hom kev npaj, thiab kev sau suav.
Thov chaw nyob
FDDI tuaj yeem siv rau hauv cov chaw ib puag ncig hauv qab no.
(1) Lub koos pij tawj chav network, tseem hu ua lub vev xaib rov qab kawg, yog siv rau kev sib txuas ntawm cov khoos phis tawm loj thiab cov khoom siv hluav taws xob ceev hauv chav khoos phis tawm, nrog rau cov chaw ib puag ncig uas xav kom muaj kev cia siab, xa tus nqi, thiab qhov txhaum ntawm qhov system. thev taus.
(2) Lub caj qaum ntawm lub chaw ua haujlwm lossis tuam tsev pawg, tseem hu ua lub vev xaib ua ntej, siv los txuas ntau lub minicomputers, chaw ua haujlwm, tus kheej lub khoos phis tawm thiab ntau lub peripherals.
(3) Lub tuam txhab caj qaum hauv tsev kawm ntawv lossis tuam txhab network yog siv los txuas cov minicomputers, cov servers, chaw ua haujlwm, tus kheej ntiag tug thiab thaj chaw hauv ib cheeb tsam faib rau ntau lub tsev hauv thaj chaw lossis chaw ua haujlwm.
(4) Ntau lub tsev kawm ntawv sib txuas hauv tsev kawm ntawv lossis cov koom ua haujlwm sab qaum yog siv los txuas ntau lub tsev kawm ntawv sib txuas thiab chaw sib koom ua lag luam uas nyob deb li ob peb km ntawm ib leeg, thiab dhau los ua kev sib txuas lus hauv cheeb tsam.
OPTICO KEV SIB TXUAS LUS (www.fiberopticom.com) tsom rua kev tsim kho offiber optic network sib txuas lus khoom kab thiab muab kev daws teeb meem zoo rau cov khoom siv sib txuas fiber ntau. Peb muab cov fiber ntau ua ke, xws li cov hlua fiber ntau, fiber ntau pigtail, PLC splitter, txuas txuas ceev, MTP / MPO, CWDM / DWDM, SFP, FTTH tov, Cov ntaub ntawv nruab nrog cov xov hluav taws xob, thiab lwm yam. kev tsim khoom thiab tshuaj xyuas, kom ntseeg tau tias muaj kev ua haujlwm zoo thiab ruaj khov khoom zoo, thiab kev nyab xeeb thiab kev ntseeg tau zoo kom ntseeg tau siv lub sijhawm ntev ntawm cov khoom.
Kom paub meej ntxiv, pls mus xyuas OPTICO lub vev xaib:www.fiberopticom.com