Ƙarfafa Ayyukan Fiber Unit (EPFU) ƙananan girman, nauyi mai sauƙi, haɓakaccen naúrar fiber na waje wanda aka tsara don busa cikin ƙananan bututu ta hanyar iska. Ƙwararren thermoplastic na waje yana ba da babban matakin kariya da kyawawan kayan shigarwa.
Ana ba da EPFU a cikin kwanon rufi na kilomita 2 a matsayin daidaitaccen, amma ana iya ba da shi cikin gajere ko tsayi mai tsayi akan buƙata. Bugu da ƙari, bambance-bambancen tare da lambobin fiber daban-daban suna yiwuwa. Ana ba da EPFU a cikin kwanon rufi mai ƙarfi, ta yadda za a iya jigilar shi ba tare da lalacewa ba.
Nau'in Fiber:ITU-T G.652.D/G.657A1/G.657A2, OM1/OM3/OM4 Fibers