Mai jujjuya kafofin watsa labarai na fiber shine kayan aikin samfur ɗin da ake buƙata don tsarin sadarwa na gani.Babban aikinsa shine naúrar musayar watsa labarai na watsawa ta Ethernet wanda ke musanya gajeriyar siginar murɗi-biyu na lantarki da siginar gani mai nisa.Ana amfani da samfuran masu canza fiber na gabaɗaya a cikin ainihin mahallin cibiyar sadarwa waɗanda kebul na Ethernet ba za su iya rufe su ba kuma dole ne su yi amfani da filaye na gani don tsawaita nisan watsawa, kuma galibi suna cikin aikace-aikacen Layer na hanyoyin sadarwa na babban birni.Kamar: babban ma'anar bidiyo da watsa hoto don saka idanu akan ayyukan tsaro;a lokaci guda, yana kuma taka rawar gani wajen taimakawa wajen haɗa ƙarshen mil na ƙarshe na layukan fiber optic zuwa cibiyar sadarwa na yankin birni da cibiyar sadarwa ta waje.

Tunda matsakaicin nisa watsawa na kebul na cibiyar sadarwa da aka saba amfani da shi (karkatattun biyu) yana da iyaka sosai, matsakaicin nisan watsawa na karkatattun biyu gabaɗaya mita 100.Don haka, lokacin da muke tura babbar hanyar sadarwa, dole ne mu yi amfani da na'urorin relay.Fiber na gani zabi ne mai kyau.Nisan watsawar fiber na gani yana da tsayi sosai.Gabaɗaya magana, nisan isar da fiber-mode guda ɗaya ya fi kilomita 20, kuma nisan watsa fiber mai nau'i-nau'i na iya kaiwa zuwa kilomita 2.Lokacin amfani da filaye na gani, mukan yi amfani da mai sauya kafofin watsa labarai na fiber.

Aiki na fiber media Converter shine musanya tsakanin siginar gani da siginar lantarki.Siginar gani shine shigarwa daga tashar tashar gani, kuma siginar lantarki yana fitowa daga tashar wutar lantarki (mai haɗa kristal RJ45 na kowa), kuma akasin haka.Tsarin yana da kusan kamar haka: canza siginar lantarki zuwa siginar gani, watsa ta hanyar fiber na gani, canza siginar gani zuwa siginar lantarki a ɗayan ƙarshen, sannan haɗa zuwa hanyoyin sadarwa, masu sauyawa da sauran kayan aiki.

Saboda haka, fiber kafofin watsa labarai Converter yawanci amfani da nau'i-nau'i.