Isidibanisi sefiber optical
Isidibanisi sefiber optic sinefiber kunye neplagi kuzo zombini iziphelo zefiber.Iplagi iqulethe i-pin kunye ne-peripheral yokuvala isakhiwo.Ngokweendlela ezahlukeneyo zokutshixa, izixhumi zefiber zingahlelwa kwi-FC uhlobo, uhlobo lwe-SC, uhlobo lwe-LC, uhlobo lwe-ST kunye nohlobo lwe-KTRJ.
Isidibanisi seFC samkela isixhobo sokutshixa intambo kwaye sisidibanisi sefayibha ebonakalayo eshukumayo eyeyona yakuqala kwaye isetyenziswa kakhulu.
I-SC luhlanganiso oluxande oluphuhliswe yi-NTT.Inokufakwa ngokuthe ngqo kwaye isuswe ngaphandle kokudibanisa intambo.Xa kuthelekiswa neFC isinxibelelanisi, inendawo encinci yokusebenza kwaye kulula ukuyisebenzisa.Iimveliso ze-Ethernet ezisezantsi zixhaphake kakhulu.
Ikhonkco ye-ST yaphuhliswa yi-AT & T kwaye isebenzisa indlela yokuvala i-bayonet.Izibonakaliso eziphambili zeparameter zilingana nezixhumi ze-FC kunye ne-SC, kodwa aziqhelekanga kwizicelo zenkampani.Zidla ngokusetyenziswa kwizixhobo zemowudi ezininzi kwaye zisetyenziswa rhoqo xa zifakwe kwizixhobo zabanye abavelisi.
Izikhonkwane ze-KTRJ zenziwe ngeplastiki kwaye zibekwe ngezikhonkwane zentsimbi.Njengoko inani lokufakwa kunye nokususwa landa, iindawo zokukhwelana zinxiba kwaye zigugile, kwaye ukuzinza kwexesha elide akulunganga njengezixhumi ze-ceramic pin.
Ulwazi lwefiber optical
I-fiber optical yi-conductor ehambisa amaza okukhanya.Ifayibha ye-Optical inokwahlulwa ibe yi-fiber yemowudi enye kunye ne-multimode fiber ukusuka kwindlela yokuhanjiswa kwe-optical.
Kwifayibha yemowudi enye, ukuhanjiswa kokukhanya kunendlela enye kuphela esisiseko, oku kuthetha ukuba ukukhanya kuhanjiswa kuphela ecaleni kombindi wangaphakathi wefiber.Njengoko imowudi yokusasazwa igwenywe ngokupheleleyo, ifayibha yemowudi enye inebhendi yokuhambisa ebanzi kwaye ifanelekile. isantya esiphezulu, umgama omde ifayibha unxibelelwano.
Kwifiber ye-multimode, kukho iindlela ezininzi zokuhanjiswa kwe-optical.Ngenxa yokusabalalisa okanye ukuchithwa, ukuhanjiswa kwe-fiber optical enjalo kubi, i-frequency band iyancipha, izinga lokuhambisa lincinci, kwaye umgama ufutshane.
Iiparamitha zeempawu zefiber optical
Ubume befiber optical yenziwe yintonga yefiber ye-quartz, kunye nobubanzi obungaphandle befiber ye-multimode kunye ne-fiber mode eyodwa yonxibelelwano zombini ziyi-125.μm.
I-slimming yahlulwe yaba ziindawo ezimbini: i-Core kunye ne-Cladding layer.I-fiber core ye-mode eyodwa inobubanzi obuyi-8 ~ 10.μm.I-multimode fiber core diameter inemigangatho emibini esemgangathweni, kwaye i-diameter engundoqo yi-62.5μm (umgangatho wase-US) kunye ne-50μm (umgangatho waseYurophu).
Inkcazo yefiber interface inenkcazo enjalo: 62.5μm/125μm multimode ifayibha, apho 62,5μm ibhekisela kwidayamitha engundoqo yefiber, kunye ne-125μm ibhekisa kwidayamitha yangaphandle yefiber.
Iintsinga zemowudi enye zisebenzisa i-wavelength ye-1310 nm okanye i-1550 nm.
Iifiber zeMultimode zisebenzisa i-wavelength ye-850 nm.
Ifiber yemowudi enye kunye nefiber yemultimode inokwahlulwa ngombala.Umzimba wangaphandle we-fiber yemodi enye utyheli, kwaye umzimba wangaphandle we-multimode fiber unobomvu orenji.
Gigabit optical port
Izibuko ze-Gigabit optical zingasebenza kuzo zombini iindlela zokunyanzeliswa kunye ne-auto-negotiated.Kwinkcazo ye-802.3, i-Gigabit optical port isekela kuphela i-1000M yesantya kwaye isekela i-duplex epheleleyo (Egcweleyo) kunye ne-half-duplex (Half) ye-duplex modes.
Owona mahluko usisiseko phakathi kokuthetha-thethana ngokuzenzekelayo kunye nokunyanzeliswa kukuba umjelo wekhowudi othunyelwe xa ezi zimbini ziseka ikhonkco lomzimba lahlukile.Imowudi yokuxoxisana ngokuzenzekelayo ithumela i-/C/ ikhowudi, eyona ndlela yoqwalaselo lwekhowudi, kunye nemowudi yokunyanzeliswa ithumela / I / ikhowudi, engumjelo ongasebenziyo.
I-Gigabit optical port self-inkqubo yothethathethwano
Okokuqala: zombini iziphelo zisetelwe kwimowudi yothethathethwano oluzenzekelayo
Amaqela amabini athumela omnye komnye/C/code stream.Ukuba ezintathu ezifanayo / C / iikhowudi zifunyenwe ngokulandelelana kwaye ikhowudi efunyenweyo ihambelana nendlela yokusebenza yesiphelo sendawo, elinye iqela libuyisela i / C / ikhowudi kunye nempendulo ye-Ack.Emva kokufumana ulwazi lwe-Ack, intanga icinga ukuba abo babini banokunxibelelana kunye kwaye babeke ichweba kwi-UP state.
Okwesibini:isiphelo esinye simiselwe kwi-auto-negotiation, enye isiphelo sibekwe kwisinyanzelo
Isiphelo sokuthethana ngokuzenzekelayo sithumela i/C/stream, kwaye isiphelo esinyanzelwayo sithumela i/I/stream.Ukuphela kokunyanzeliswa akukwazi ukunika intanga ngolwazi lokuxoxisana kwesiphelo sendawo, kwaye ayikwazi ukubuyisela impendulo ye-Ack kuontanga.Ngoko ke, i-terminal ye-auto-negotiation PHANTSI.Nangona kunjalo, isiphelo sokunyanzeliswa ngokwaso siyakwazi ukuqaphela i / C / ikhowudi, kwaye ithathele ingqalelo ukuba isiphelo sontanga lizibuko elihambelana ngokwalo, ngoko cwangcisa ngokuthe ngqo izibuko lendawo kwi-UP state.
Okwesithathu:zombini iziphelo zimiselwe kwimo enyanzelekileyo
Amaqela amabini athumelana / mna / imisinga.Emva kokufumana i/I/stream, intanga ibona ukuba intanga lizibuko elifana nentanga.
Yintoni umahluko phakathi kwe-multimode kunye ne-singlemode fiber?
I-Multimode:
Iifiber ezinokuhamba ukusuka kumakhulu ukuya kumawaka eendlela zibizwa ngokuba yi-multimode (MM) fibers.Ngokokusasazwa kwe-radial ye-refractive index kwi-core kunye ne-cladding, inokuphinda ihlulwe ibe yi-fiber ye-multimode kunye ne-multimode fiber.Phantse zonke iintsinga ze-multimode ziyi-50/125 μm okanye i-62.5/125 μm ngobukhulu, kwaye i-bandwidth (ubungakanani bolwazi olugqithiswa yifayibha) idla ngokuba yi-200 MHz ukuya kwi-2 GHz. .I-diode ekhupha ukukhanya okanye i-laser isetyenziswa njengomthombo wokukhanya.
Imowudi enye:
I-fiber enokusasaza imodi enye ibizwa ngokuba yi-fiber mode eyodwa.I-fiber ye-fiber ye-fiber refractive index profile ifana ne-fiber yesinyathelo, ngaphandle kokuba ububanzi obuphambili buncinci kakhulu kune-multimode fiber.
Ubungakanani befiber yemowudi enye yi-9-10/125μm kwaye ine-bandwidth engapheliyo kunye neempawu ezilahlekileyo eziphantsi kune-fiber multimode.I-transceivers optical-mode eyodwa isoloko isetyenziselwa ukuhanjiswa kwexesha elide, ngamanye amaxesha ukufikelela kwi-150 ukuya kwiikhilomitha ze-200.Ii-LED ezine-LD ezincinci okanye imigca ye-spectral isetyenziswa njengomthombo wokukhanya.
Umahluko kunye noqhagamshelwano:
Izixhobo zemowudi enye zihlala zisebenza kuzo zombini iifiber zemowudi enye kunye neentsinga zemultimode, ngelixa izixhobo zemultimode zikhawulelwe ekusebenzeni kwimicu yemultimode.