Ho tloha bofelong ba lilemo tsa bo-1980, likhokahano tsa fiber-optic butle-butle li ile tsa fetoha ho tloha ho nako e khutšoanyane ho ea ho bolelele bo bolelele, ho tloha ho fiber ea multimode ho ea ho mofuta o le mong oa fiber. Hajoale, fiber ea mofuta o le mong e sebelisoa haholo marang-rang a kutu ea naha le marang-rang a kutu ea profinse. Multimode fiber e lekantsoe feela ho li-LAN tse ling tse nang le lebelo le tlase.Hajoale, fiber eo batho ba buang ka eona e bua ka fiber ea mofuta o le mong. Fiber ea mofuta o le mong e na le melemo ea tahlehelo e tlase, bandwidth e kholo, ntlafatso e bonolo le katoloso, le litšenyehelo tse tlase, 'me e sebelisoa haholo.
Ha litlhoko tsa bophelo tsa batho li ntse li ntlafala ho ea pele, Marang-rang a fetoha karolo ea bohlokoa ea bophelo.E le hore ho tsamaellane le nts'etsopele ea mehla ea tlhahisoleseling, theknoloji e kopantsoeng ea lithapo le lihlahisoa li lula li nchafatsoa, haholo-holo lipatlisiso tse kholo le nts'etsopele ea likhoele tsa fiber optic. . Ho na le mefuta e mengata e fapaneng ea likhoele tsa fiber optic tsa mefuta e fapaneng le ts'ebeliso 'marakeng. U ka khetha mofuta o sebetsang joang ha u tobane le likhoele tse ngata tsa optical? U ka khetha lihlahisoa tse ntle ka ho fetisisa tsa fiber optic joang?
Lihlopha tse ka sehloohong tsa fiber optical
Ho latela mokhoa oa phetiso, fiber ea optical e na le mefuta e 'meli ea fiber ea multimode le fiber e le' ngoe. Multimode fiber e ka fetisa mekhoa e mengata, ha fiber mode e le 'ngoe e ka fetisa mokhoa o le mong feela bakeng sa bolelele bo fanoeng ba ts'ebetso. Likhoele tsa multimode tse sebelisoang hangata ke 50/125m le 62.5/125m. Bophahamo ba mantlha ba fiber ea mode e le 'ngoe hangata ke 9 / 125 m. Multimode fiber-moko-moko o teteaneng (50 kapa 62.5m). Kaha geometry ea fiber (haholo-holo bophara ba mantlha d1) e kholo haholo ho feta bolelele ba maqhubu a leseli (hoo e ka bang 1 micron), ho na le likhoele tse ngata kapa tse makholo. Ka nako e ts'oanang, ka lebaka la ho hasana ho hoholo pakeng tsa mekhoa, maqhubu a phetisetso a fokotsehile, 'me ho eketseha ha sebaka se selelele ho tebile ho feta. le sebaka se sekhutšoane sa phetiso, joalo ka marang-rang a sebaka sa lehae. Marang-rang a joalo hangata a na le li-node tse ngata, manonyeletso a mangata, li-bend tse ngata, le li-connectors le li-couplers. Palo ea likarolo, palo ea lisebelisoa tse sebetsang tse sebelisoang ka unit fiber length, joalo-joalo, tšebeliso ea fiber multimode e ka fokotsa litšenyehelo tsa marang-rang.
Fiber ea mofuta o le mong e na le mokokotlo o monyenyane (ka kakaretso o ka bang 9 m) 'me o ka fetisetsa mokhoa o le mong oa leseli.Ka lebaka leo, ho hasana pakeng tsa mekhoa e nyenyane haholo, ho loketse bakeng sa puisano e hōle, empa ho ntse ho e-na le ho qhalakanngoa ha lintho tse bonahalang le ho hasana ha waveguide, kahoo. fiber ea mofuta o le mong e na le litlhoko tse phahameng bakeng sa bophara ba spectral le botsitso ba mohloli oa leseli, ke hore, bophara ba spectral bo lokela ho ba bo moqotetsane, 'me botsitso bo lokela ho ba bo botle.Single-mode fiber e sebelisoa haholo meleng e nang le sebaka se selelele sa phetisetso le e batlang e lekana. lebelo le phahameng la phetisetso, joalo ka phetisetso ea kutu ea sebaka se selelele, kaho ea marang-rang ea libaka tsa litoropo, joalo-joalo Marang-rang a hona joale a FTTx le HFC a na le likhoele tsa mofuta o le mong.
Phapang pakeng tsa li-transceivers tsa fiber e le 'ngoe le multimode fiber transceivers
Fiber optic transceiver ke Ethernet transmission medium conversion device e fapanyetsanang lipontšo tsa motlakase le optical tsa Ethernet, 'me li-fiber tsa optical tse fetisang data holim'a marang-rang li arotsoe ka likhoele tsa multimode le li-single mode fibers. e fetisoa libakeng tse telele, e ka sebelisoa feela bakeng sa marang-rang ka hare ho mehaho le pakeng tsa mehaho. Leha ho le joalo, hobane fiber ea multimode le fiber transceiver e tsamaisanang li batla li le theko e tlaase, e ntse e le ka har'a mefuta e itseng. Ke fumane kopo. Likolo tse ngata le tsona li sebelisa fiber ea multimode ha li theha marang-rang a ka hare a khamphase.
Ka tsoelo-pele ea theknoloji, fiber ea mode e le 'ngoe e ile ea qala ho kena ts'ebetsong ea marang-rang a sebaka se selelele (ho tloha lik'hilomithara tse' maloa ho isa ho lik'hilomithara tse fetang lekholo), 'me tsoelo-pele e potlakile haholo, lilemong tse' maloa, ho tloha lits'ebetsong tse phahameng ho ea ho tse ling. mahae a batho ba tloaelehileng, Ka mohlala, malapa a mangata hona joale a sebelisa li-transceivers tsa optical (tseo ho thoeng ke FTTH mode, fiber-to-the-home) ha ba bula marang-rang. Tšebeliso ea li-transceivers tsa optical e fetohile mokhoa o tloaelehileng haholo oa litšebeletso tsa boleng ba ho phatlalatsa le thelevishene.
Ho sebelisa li-transceivers tsa fiber optic bakeng sa marang-rang, melemo ha e tsitsitse feela, empa ke eng hape? Ke lebelo leo! 100M e tletseng duplex, lebelo le phahameng le ho feta 100 e tletseng duplex: 1000M e tletseng duplex.
E eketsa moeli oa sebaka sa phetisetso ea marang-rang ho tloha ho 100M ho ea ho tse fetang 100KM bakeng sa lipara tse sothehileng, tse ka hlokomelang habonolo khokahanyo lipakeng tsa seva ea boardboard, e pheta-phetoang, hub, terminal le terminal. Ha re khetha marang-rang a fiber-optic, re tla matlafatsa kutloisiso ea fiber ea optical, re atise tsebo e nepahetseng, 'me re khethe fiber e sebetsang hantle ka ho nahanela ka botlalo.