Izinzuzo zekhebula le-fiber nendlela yokukhetha ikhebula le-fiber

Eminyakeni embalwa edlule, ikhebula le-fiber optic selithengeka kakhulu.Manje isisetshenziselwa inqwaba yezinhlelo zokusebenza ezidinga ukungavikeleki okuphelele ekuphazamisekeni kukagesi.I-Fiber ilungele amasistimu anezinga eliphezulu ledatha njenge-FDDI, i-multimedia, i-ATM, nanoma iyiphi enye inethiwekhi edinga ukudluliswa kwamafayela edatha amakhulu, adla isikhathi.

Ezinye izinzuzo ze-fiber optic cable ngaphezu kwethusi zihlanganisa:

• Ibanga elikhudlwana-Ungagijima i-fiber uze ufike kumakhilomitha ambalwa.• Ukuncipha okuphansi-Amasiginali wokukhanya ahlangabezana nokuphikiswa okuncane, ngakho idatha ingahambela kude.

• Ukuthepha okuphepha kukhebuli ye-fiber optic kulula ukukubona.Uma ithentwa, ikhebula livuza ukukhanya, okubangela ukuthi lonke uhlelo luhluleke.

• I-bandwidth-Fiber enkulu ingaphatha idatha eningi kunethusi.• I-Immunity-Fiber optics ivikelekile ekuphazamisekeni.

Imodi eyodwa noma i-multimode?

Ifayibha yemodi eyodwa ikunikeza izinga lokudlulisela eliphezulu kanye nebanga eliphindwe izikhathi ezingu-50 kune-multimode, kodwa futhi libiza ngaphezulu.Ifayibha yemodi eyodwa inomongo omncane kakhulu kune-multimode fiber-imvamisa i-5 kuya ku-10 microns.I-lightwave eyodwa kuphela engadluliswa ngesikhathi esithile.I-core encane kanye ne-lightwave eyodwa kucishe kuqede noma yikuphi ukuhlanekezela okungase kube umphumela wama-pulses okukhanya agqagqene, kunikeze ukuncishiswa kwesignali okuncane kanye nesivinini sokudlulisa esiphezulu sanoma yiluphi uhlobo lwekhebula lefayibha.

I-Multimode fiber ikunikeza umkhawulokudonsa ophezulu ngesivinini esiphezulu kumabanga amade.Ama-Lightwaves ahlakazeka ezindleleni eziningi, noma ezindleleni, njengoba ehamba phakathi kwentambo.Ububanzi obujwayelekile be-multimode fiber core ngama-micrometer angu-50, 62.5, no-100.Nokho, ekugijimeni kwekhebula okude (okungaphezu kwamafidi angu-3000 [914.4 ml), imizila eminingi yokukhanya ingabangela ukuhlanekezela kwesignali ekugcineni kokwamukela, okuholela ekudlulisweni kwedatha okungacacile nokungaphelele.

Ukuhlola nokuqinisekisa ikhebula le-fiber optic.

Uma ukujwayele ukuqinisekisa ikhebula leSigaba 5, uzomangala ngokujabulisayo ukuthi kulula kangakanani ukuqinisekisa ikhebula le-fiber optic njengoba uma uvikelekile ekuphazanyisweni kukagesi.Udinga kuphela ukuhlola izilinganiso ezimbalwa:

• I-Attenuation (noma ukulahleka kwe-decibel) -Kukalwa nge-dB/km, lokhu ukuncipha kwamandla esignali njengoba ihamba ngentambo ye-fiber optic.• Ukulahlekelwa kokubuyisela-Inani lokukhanya eliboniswa kusukela ekugcineni okukude kwentambo kubuyela emthonjeni.Lapho inombolo iphansi, iba ngcono.Isibonelo, ukufundwa kwe -60 dB kungcono kune -20 dB.

• I-graded refractive index-Ikala ukuthi kungakanani ukukhanya okuthunyelwa phansi ku-fiber.Lokhu kuvame ukukalwa kumaza wamaza angama-850 nama-nanometer angu-1300.Uma kuqhathaniswa namanye amafrikhwensi okusebenza, lezi zinhlanga ezimbili zinikeza ukulahleka kwamandla okungaphakathi okuphansi kakhulu.(QAPHELA Lokhu kuvumeleke ku-multimode fiber kuphela.)

• Ukubambezeleka kokusabalalisa-Lesi isikhathi esithatha isignali ukuhamba ukusuka kwelinye iphuzu ukuya kwelinye ngeshaneli yokudlulisela.

• I-Time-domain reflectometry (TDR)-Idlulisela ama-pulses amafrikhwensi aphezulu kukhebuli ukuze ukwazi ukuhlola ukubukeka ngakunye kwekhebuli futhi ihlukanise amaphutha.

Baningi abahloli be-fiber optic emakethe namuhla.Izihloli eziyisisekelo ze-fiber optic zisebenza ngokukhanyisa ukukhanya phansi kwelinye icala lekhebula.Ngakolunye uhlangothi, kukhona umamukeli olinganiswe emandleni omthombo wokukhanya.Ngalokhu kuhlola, ungakwazi ukukala ukuthi kungakanani ukukhanya okuya ngakolunye uhlangothi lwekhebula.Ngokuvamile, laba bahloli bakunikeza imiphumela kuma-decibel (dB) alahlekile, bese uwaqhathanisa nesabelomali sokulahlekelwa.Uma ukulahlekelwa okulinganiselwe kungaphansi kwenombolo ebalwa ngesabelomali sakho sokulahlekelwa, ukufakwa kwakho kuhle.

Abahloli abasha abasha be-fiber optic banebanga elibanzi lamakhono.Bangakwazi ukuhlola amasiginali we-850- kanye ne-1300-nm ngesikhathi esisodwa futhi bangahlola i-Gable yakho ukuthi iyahambisana namazinga athile.

Lapho ukhetha i-fiber optic.

Nakuba intambo ye-fiber optic isabiza kakhulu kunezinye izinhlobo zekhebula, ithandwa kakhulu kwezokuxhumana kwedatha yesivinini esikhulu namuhla ngoba iqeda izinkinga zekhebula elisontekile, njenge-close-end crosstalk (NEXT), interference electromagnetic (EIVII), kanye nokwephulwa kwezokuphepha.Uma udinga intambo yefayibha ungavakashelawww.mireko-cable.com.