A cikin 'yan shekarun da suka gabata, kebul na fiber optic ya zama mafi araha.Yanzu ana amfani da shi don aikace-aikace da yawa waɗanda ke buƙatar cikakken rigakafi ga kutsewar lantarki.Fiber yana da kyau don babban tsarin ƙimar bayanai kamar FDDI, multimedia, ATM, ko duk wata hanyar sadarwa da ke buƙatar canja wurin manyan fayilolin bayanai masu cin lokaci.
Sauran fa'idodin fiber optic na USB akan jan ƙarfe sun haɗa da:
Babban nisa-Zaka iya tafiyar da fiber har zuwa kilomita da yawa.• Ƙarƙashin ƙaƙƙarfan siginar haske suna saduwa da juriya kaɗan, don haka bayanai na iya yin tafiya mai nisa.
• Tsaro-Taps a cikin fiber optic na USB yana da sauƙin ganewa.Idan an taɓa shi, kebul ɗin yana ɗora haske, yana haifar da gazawar tsarin gaba ɗaya.
• Babban bandwidth-Fiber na iya ɗaukar bayanai fiye da jan ƙarfe.• Immunity-Fiber optics ba su da kariya daga tsangwama.
Single-mode ko multimode?
Fiber-yanayin guda ɗaya yana ba ku ƙimar watsawa mafi girma kuma har zuwa sau 50 fiye da nisa fiye da multimode, amma kuma yana da ƙari.Fiber-yanayin guda ɗaya yana da ƙaramin tushe fiye da multimode fiber-yawanci 5 zuwa 10 microns.Za a iya watsa igiyar haske guda ɗaya a wani lokaci.Ƙaramin ginshiƙi da igiyar haske guda ɗaya kusan suna kawar da duk wani murdiya da zai iya haifar da tashe-tashen hankulan haske, samar da mafi ƙarancin sigina da mafi girman saurin watsa kowane nau'in kebul na fiber.
Multimode fiber yana ba ku babban bandwidth a babban gudu akan nesa mai nisa.Ana tarwatsa raƙuman hasken wuta zuwa hanyoyi masu yawa, ko hanyoyi, yayin da suke tafiya ta tsakiyar kebul ɗin.Yawan diamita na fiber core multimode shine 50, 62.5, da 100 micrometers.Koyaya, a cikin dogayen kebul ɗin ke gudana (fiye da ƙafa 3000 [914.4 ml), hanyoyin haske da yawa na iya haifar da murɗaɗɗen sigina a ƙarshen karɓar, haifar da rashin tabbas kuma rashin cikakkiyar watsa bayanai.
Gwaji da tabbatar da kebul na fiber optic.
Idan ana amfani da ku don tabbatar da kebul na Category 5, za ku yi mamakin yadda sauƙin tabbatar da kebul na fiber optic tunda idan ba shi da katsalandan na lantarki.Kuna buƙatar bincika ma'auna kaɗan kawai:
• Attenuation (ko asarar decibel) -An auna a dB/km, wannan shine raguwar ƙarfin sigina yayin da yake tafiya ta hanyar fiber optic na USB.Komawa hasara-Yawan hasken da ke haskakawa daga nesa mai nisa na kebul zuwa madogararsa.Ƙananan lambar, mafi kyau.Misali, karatun -60 dB ya fi -20 dB.
• Maƙasudin refractive ma'auni - Yana auna yawan hasken da aka saukar da fiber.Ana auna wannan da yawa a tsayin daka na 850 da 1300 nanometers.Idan aka kwatanta da sauran mitoci masu aiki, waɗannan jeri biyu suna haifar da mafi ƙarancin asarar wutar lantarki.(NOTE Wannan yana aiki don fiber multimode kawai.)
• Jinkirin yaduwa-Wannan shine lokacin da ake ɗaukar sigina don tafiya daga wannan batu zuwa wani ta hanyar watsawa.
Matsakaicin lokaci-yanki (TDR) - Yana ba da juzu'i mai tsayi akan kebul don haka zaku iya bincika tunani tare da kebul ɗin kuma keɓe kurakuran.
Akwai masu gwajin fiber optic da yawa a kasuwa a yau.Gwajin gwajin fiber optic na asali suna aiki ta hanyar haskaka ƙarshen ƙarshen kebul ɗin.A ɗayan ƙarshen, akwai mai karɓa wanda aka daidaita shi zuwa ƙarfin tushen hasken.Tare da wannan gwajin, zaku iya auna yawan hasken da ke zuwa ɗayan ƙarshen kebul ɗin.Gabaɗaya, waɗannan masu gwajin suna ba ku sakamakon a cikin decibels (dB) da suka ɓace, waɗanda za ku kwatanta da kasafin kuɗi na asara.Idan asarar da aka auna ta kasa da adadin da aka ƙididdige ta hanyar kasafin kuɗin asarar ku, shigarwar ku yana da kyau.
Sabbin gwaje-gwajen fiber optic suna da faffadan iyawa.Za su iya gwada siginar 850- da 1300-nm a lokaci guda kuma suna iya duba Gable ɗin ku don bin ƙayyadaddun ƙa'idodi.
Lokacin zabar fiber optic.
Duk da cewa kebul na fiber optic har yanzu yana da tsada fiye da sauran nau'ikan na USB, an fi son shi don sadarwa mai sauri na yau da kullun saboda yana kawar da matsalolin na'urorin murɗaɗɗen igiyoyi, kamar kusa-karshen crosstalk (NEXT), tsoma baki na electromagnetic (EIVII). da kuma rashin tsaro.Idan kuna buƙatar kebul na fiber za ku iya ziyartawww.mireko-cable.com.
Lokacin aikawa: Nov-02-2022