I-Optical fiber iyisici esibalulekile esikhathini samanje senethiwekhi, kodwa ingabe uyayiqonda ngempela i-optical fiber?Yiziphi izindlela zokuxhuma i-fiber?Uyini umehluko phakathi kwentambo ye-optical ne-optical fiber?Kungenzeka yini ukuthi i-fiber ishintshe ngokuphelele izintambo zethusi ezivela ngaphandle
Yiziphi izindlela zokuxhuma i-fiber?
1. Uxhumano olusebenzayo:
Uxhumano olusebenzayo luyindlela yokuxhuma isayithi kusayithi noma isayithi kukhebula le-fiber optic usebenzisa amathuluzi ahlukahlukene oxhumano lwe-fiber optic (amapulagi nezisekelo).Le ndlela iyaguquguquka, ilula, ifanelekile, futhi inokwethenjelwa, futhi ivame ukusetshenziswa kuzintambo zenethiwekhi yekhompyutha ezakhiweni.I-attenuation yayo evamile yi-1dB / isixhumi.
2. Uxhumano oluphuthumayo (okwaziwa nangokuthi) ukuncibilika okubandayo:
Uxhumano oluphuthumayo lusebenzisa izindlela zemishini nezamakhemikhali ukulungisa nokuhlanganisa imicu emibili yokubona ndawonye.Isici esiyinhloko sale ndlela ukuthi ukuxhumana kuyashesha futhi kuthembekile, futhi ukuncishiswa okujwayelekile kokuxhumana kungu-0.1-0.3dB / iphuzu.
Angaxhunywa kuzixhumi futhi axhunywe kumasokhethi e-fiber optic.Isixhumi sisebenzisa u-10% kuya ku-20% wokukhanya, kodwa senza kube lula ukulungisa kabusha uhlelo.Nokho, iphoyinti lokuxhuma ngeke lizinze isikhathi eside futhi ukuncipha kuzokwanda kakhulu, ngakho-ke ingasetshenziswa kuphela ezimeni eziphuthumayo isikhathi esifushane.
Ingahlanganiswa ngomshini.Ukuze wenze lokhu, faka ingxenye eyodwa yezintambo ezimbili ezisikwe ngokucophelela eshubhuni futhi uzibophe ndawonye.I-fiber ingalungiswa ngokusebenzisa i-junction ukuze kwandiswe isignali.Ukuhlanganiswa kwemishini kudinga cishe imizuzu emi-5 ukuze abasebenzi abaqeqeshiwe baqedele, futhi ukulahleka kokukhanya cishe ku-10%.
3. Uxhumano lwefayibha unomphela (okwaziwa nangokuthi i-hot melt):
Lolu hlobo lokuxhuma lusebenzisa ukukhishwa kukagesi ukuze luhlanganise futhi luxhume amaphuzu okuxhumana efayibha.Ngokujwayelekile isetshenziselwa ukuxhumana okude, ukuxhumana okugxilile okuhlala njalo noma okuhlala njalo.Isici sayo esiyinhloko ukuthi ukuncishiswa kokuxhumeka kuphansi kakhulu kuzo zonke izindlela zokuxhuma, ngenani elijwayelekile elingu-0.01-0.03dB / iphuzu.
Kodwa-ke, lapho uxhuma, imishini ekhethekile (umshini wokushisela) kanye nokusebenza kochwepheshe kuyadingeka, futhi iphuzu lokuxhuma lidinga ukuvikelwa ngesitsha esikhethekile.Imicu emibili ingahlanganiswa ukuze yakhe ukuxhumana okuqinile.
I-fiber eyakhiwe indlela yokuhlanganisa icishe ifane nefayibha eyodwa, kodwa kukhona ukuncishiswa okuncane.Kuzo zontathu izindlela zokuxhuma, kukhona ukuboniswa endaweni okuhlangana kuyo, futhi amandla abonisiwe asebenzisana nesiginali.
Kuyadingeka ukuqonda ukulahleka kwe-fiber optical ukuze usebenzise kangcono i-fiber optical.Umsebenzi oyinhloko wokuhlola ukulahleka kwefayibha ye-Fluke's CertiFiber Pro Optical Loss Test ukuhlola ukulahleka nembangela yokwehluleka kwefayibha.
Umhloli wokulahlekelwa kwefayibha kaFluke's CertiFiber Pro Optical Loss Test anga:
1. Ukuhlola okuzenzakalelayo kwamasekhondi amathathu — (ngokushesha okuphindwe kane kunabahloli bendabuko) kuhlanganisa: isilinganiso sokulahlekelwa kokubona kumafiber amabili wamaza wamaza amabili, isilinganiso sebanga kanye nesibalo sebhajethi yokulahlekelwa kokubona
2. Nikeza ukuhlaziya okuzenzakalelayo kokudlula / kokuhluleka okusekelwe kumazinga emboni noma imikhawulo yokuhlola yangokwezifiso
3. Thola izinqubo zokuhlola ezingalungile ezibangela imiphumela "yokulahlekelwa okungalungile".
Ikhamera yokuhlola ye-4.Onboard (USB) irekhoda isithombe se-fiber endface
5. Ama-adaptha imitha yamandla ashintshekayo atholakalayo kuzo zonke izinhlobo zezixhumi ezijwayelekile (SC, ST, LC, ne-FC) ukuze uthole indlela enembile yereferensi ye-jumper eyodwa
6.Isikhombi sephutha sevidiyo esakhelwe ngaphakathi sokuxilongwa okuyisisekelo nokutholwa kwe-polarity
7. Amandla okulinganisa amaza amaza akabili kufayibha eyodwa avumela umhloli ukuthi asetshenziswe ezinhlelweni ezidinga isixhumanisi sefayibha esisodwa kuphela.
Azikho izisetshenziswa ezengeziwe noma izinqubo ezidingekayo ukuze zihambisane nezidingo ze-TIA-526-14-B kanye ne-IEC 61280-4-1 ring flux.
Uyini umehluko phakathi kwentambo yokubona ne-fiber optical
Ikhebula le-optical lakhiwa inani elithile lemicu ye-optical.Umnyombo wangaphandle umbozwe ngegobolondo kanye nongqimba oluvikelayo lokuxhumana kanye nokudluliswa kolwazi olunomthamo omkhulu wamabanga amade.
I-Optical fiber iyithuluzi lokudlulisela, njengentambo yepulasitiki encane.I-optical fibre ezacile kakhulu izofakwa kumkhono wepulasitiki ukuze kudluliselwe ulwazi olude.Ngakho intambo ye-fiber optic iqukethe i-fiber optical.
Ekugcineni, ake sikhulume ngekhebula.Ikhebula lakhiwe nge-conductive wire core, i-insulation layer, kanye nesendlalelo sokuvikela esivalayo.Yenziwe ngensimbi (ikakhulukazi ithusi, i-aluminium) njengomqhubi, futhi isetshenziselwa ukudlulisa amandla noma ulwazi.Izintambo zisontekile.Amakhebuli asetshenziswa kakhulu ezindaweni zokuhamba, iziteshi ezincane, njll. Eqinisweni, izintambo nezintambo azinayo imingcele eqinile.Ngokuvamile, sibiza izintambo ezinobubanzi obuncane namaseli ambalwa njengezintambo, nezintambo ezinobubanzi obukhulu namaseli amaningi.
Kungenzeka yini ukuthi imicu yokubona ishintshe ngokuphelele izintambo zethusi ezivela ngaphandle?
Ezikhungweni eziningi zedatha, i-fiber ibuse imakethe ngenxa yezidingo eziphezulu zomkhawulokudonsa.Ngaphezu kwalokho, izintambo ze-fiber optic azikho ngaphansi kokuphazanyiswa yi-electromagnetic, futhi izidingo zazo zendawo yokufaka azikho inkimbinkimbi njengezintambo zethusi.Ngakho-ke, i-fiber optical kulula ukuyifaka.
Kodwa-ke, kufanele kuqashelwe ukuthi nakuba igebe lentengo phakathi kwezintambo ze-optical kanye nezintambo zethusi liye lancipha, inani eliphelele lezintambo ze-optical liphakeme kunezintambo zethusi.Ngakho-ke, i-fiber isetshenziswa kakhulu ezindaweni ezidinga umkhawulokudonsa ophezulu, njengezikhungo zedatha.
Ngakolunye uhlangothi, izintambo zethusi zibiza kancane.I-Optical fiber iwuhlobo olukhethekile lwefiber yengilazi entekenteke kunezintambo zethusi.Ngakho-ke, izindleko zokugcinwa kwansuku zonke zekhebula lethusi liphansi kakhulu kune-fiber optical.Iphinde inikeze ukuhambisana okubuyela emuva namadivayisi amadala we-Ethernet angu-10/100Mbps.
Ngakho-ke, izintambo zethusi zisasetshenziswa ekudlulisweni kwezwi kanye nezinhlelo zokusebenza zenethiwekhi zasendlini.Ngaphezu kwalokho, ikhebula evundlile, Power over Ethernet (POE), noma izinhlelo zokusebenza ze-inthanethi Yezinto zishayela ukusetshenziswa kwezintambo zethusi.Ngakho-ke, izintambo ze-fiber optic ngeke zithathele indawo ngokuphelele izintambo zethusi.
Mayelana nolwazi oluncane lwefiber optical, ngizophusha lapha kuwo wonke umuntu namuhla.Izintambo ze-fiber optic kanye nezintambo zethusi zinganikeza izinsizakalo zokuxhuma ku-inthanethi zamakhaya namabhizinisi.Eqinisweni, izixazululo ze-fiber optical nezethusi zizohlangana esikhathini esizayo esibonakalayo, futhi isisombululo ngasinye sizosetshenziswa lapho sinengqondo kakhulu.