Ukusukela ngasekupheleni kweminyaka yoo-1980, unxibelelwano lwefiber-optic ngokuthe ngcembe lwatshintsha ukusuka kwi-wavelength emfutshane ukuya kwi-long-wavelength, ukusuka kwi-multimode fiber ukuya kwi-fiber yemowudi enye. Okwangoku, i-single-mode fiber isetyenziswa ngokubanzi kuthungelwano lwe-cable trunk yesizwe kunye ne-provincial line network. Ifayibha ye-Multimode inqunyelwe kuphela kwezinye iiLAN ezinesantya esiphantsi.Okwangoku, ifayibha abathetha ngayo abantu ibhekisa kwifiber yemowudi enye. I-fiber yendlela enye ineenzuzo zokulahleka okuphantsi, i-bandwidth enkulu, ukuphuculwa okulula kunye nokwandiswa, kunye neendleko eziphantsi, kwaye isetyenziswa ngokubanzi.
Njengoko iimfuno zokuphila zabantu ziphucuka ngakumbi, i-Intanethi iba yinxalenye ebalulekileyo yobomi. Ukuze ihambelane nophuhliso lobudala bolwazi, itekhnoloji yocingo edibeneyo kunye neemveliso zihlala zihlaziywa, ngakumbi uphando olukhulu kunye nophuhliso lweentambo zefiber optic. . Kukho iintlobo ezininzi zeentambo zefiber optic zeentlobo ezahlukeneyo kunye nokusetyenziswa kwimarike. Indlela yokukhetha uhlobo olusebenzayo ebusweni bemicu emininzi ye-optical? Ungazikhetha njani ezona mveliso zibalaseleyo zefiber optic?
Iindidi eziphambili zefiber optical
Ngokokuhlelwa kwemo yothumelo, i-fiber optical ineentlobo ezimbini zefiber ye-multimode kunye ne-fiber mode enye. Ifayibha ye-Multimode inokuhambisa iindlela ezininzi, ngelixa i-fiber yemowudi enye inokuhambisa imowudi enye yobude obunikiweyo bokusebenza. Iifiber ze-multimode ezisetyenziswa ngokuqhelekileyo ziyi-50 / 125m kunye ne-62.5 / 125m. I-core diameter ye-fiber mode ye-fiber ngokuqhelekileyo i-9 / 125 m. I-Multimode fiber-i-core core (50 okanye i-62.5m). Ekubeni ijometri yefiber (ikakhulu i-core diameter d1) inkulu kakhulu kunobude bokukhanya kokukhanya (malunga ne-1 micron), kukho ininzi okanye namakhulu eentsinga. Imowudi yosasazo.Ngexesha elinye, ngenxa yosasazo olukhulu phakathi kweendlela, uthungelwano lwamaxesha lulinganiselwe, kwaye ukunyuka komgama kubi kakhulu.Ngokwezi mpawu zingasentla, iifibers zemultimode optical zisetyenziswa kakhulu kuthungelwano olunezinga eliphantsi losulelo. kunye nemigama emifutshane yothumelo, efana nothungelwano lwengingqi. Uthungelwano olunjalo luhlala lunamaqhuqhuva amaninzi, amaqhina amaninzi, ukugoba okuninzi, kunye neziqhagamshelo kunye neziqhagamshelo. Inani lamacandelo, inani lezixhobo ezisebenzayo ezisetyenziselwa ubude beyunithi yefiber, njl., Ukusetyenziswa kwefayibha ye-multimode kunokunciphisa iindleko zenethiwekhi.
I-fiber ye-mode-mode ine-core encinci (ngokubanzi malunga ne-9 m) kwaye inokudlulisa kuphela indlela enye yokukhanya.Ngoko ke, ukusasazeka phakathi kweendlela kuncinci kakhulu, kukulungele ukunxibelelana okukude, kodwa kusekho ukusabalalisa kwezinto kunye nokusasazeka kwe-waveguide, ngoko ke. I-fiber yemowudi enye ineemfuno eziphezulu zobubanzi bembonakalo kunye nokuzinza komthombo wokukhanya, oko kukuthi, ububanzi bembonakalo kufuneka bube buncinci, kwaye uzinzo kufuneka lube luhle.Ifiber yemowudi enye isetyenziswa kakhulu kwimigca enomgama omde wothumelo kwaye ngokuthelekiswa. izinga losulelo oluphezulu, olufana nothumelo lomgama omde, ulwakhiwo lwenethiwekhi yendawo yemetropolitan, njl njl. Uthungelwano lwangoku lweFTTx kunye ne-HFC luninzi lwemicu yendlela enye.
Umahluko phakathi kwe-fiber transceivers ye-fiber enye kunye ne-multimode fiber transceivers
I-fiber optic transceiver yi-Ethernet transmission medium conversion device etshintshanisa imiqondiso yombane kunye ne-optical ye-Ethernet, kunye neefayili ze-optical ezihambisa idatha kwinethiwekhi zihlelwa kwiifibers ze-multimode kunye neefayili zemowudi enye. isasazwa kwimigama emide, ingasetyenziselwa kuphela uthungelwano ngaphakathi kwezakhiwo naphakathi kwezakhiwo. Nangona kunjalo, ngenxa yokuba i-multimode ifayibha kunye ne-fiber transceiver ehambelanayo zingabizi kakhulu, isekuluhlu oluthile. Izikolo ezininzi zikwasebenzisa i-multimode fiber xa zisakha inethiwekhi yekhampasi yangaphakathi.
Ngenkqubela phambili yetekhnoloji, ifayibha yemowudi enye yaqala ukungena kwimisebenzi yothungelwano olukude (ukusuka kwiikhilomitha ezimbalwa ukuya kwiikhilomitha ezingaphezulu kwekhulu), kwaye isantya sophuhliso sikhawuleza kakhulu, kwiminyaka embalwa, ukusuka kwizicelo ezikumgangatho ophezulu ukuya kwi. amakhaya abantu abaqhelekileyo, Umzekelo, amakhaya amaninzi ngoku asebenzisa i-transceivers optical (ebizwa ngokuba yi-FTTH mode, i-fiber-to-ekhaya) xa ivula inethiwekhi. Ukusetyenziswa kwee-transceivers optical kuye kwaba yindlela eqhelekileyo yeenkonzo ezongeziweyo zokusasaza kunye nomabonwakude.
Ukusebenzisa i-fiber optic transceivers kuthungelwano, inzuzo ayizinzile kuphela, kodwa yintoni enye? Sisantya eso! I-100M epheleleyo i-duplex, isantya esiphezulu ngakumbi kune-100 epheleleyo: i-1000M i-duplex epheleleyo.
Yandisa umda womda wothumelo lwenethiwekhi ukusuka kwi-100M ukuya ngaphezulu kwe-100KM kwisibini esijijekileyo, esinokuqonda ngokulula unxibelelwano phakathi komncedisi webhodi yomama, i-repeater, hub, i-terminal kunye ne-terminal. Xa ukhetha i-fiber-optic networking, siya komeleza ukuqonda kwefiber optical, sandise ulwazi olufanelekileyo, kwaye sikhethe ifayibha esebenza kakuhle ngokuqwalasela okubanzi.