Hoʻolālā kūikawā ʻia ʻo 3105A VFL no nā limahana kahua e pono ai i kahi mea hana pono a me ka waiwai no ka huli ʻana i ka fiber, ke ala ʻana i ka fiber a me ka nānā mau ʻana i ka pūnaewele optical.Loaʻa iā ia. ʻO ka ʻimi ʻana i ka wahi haʻihaʻi, nā pilina maikaʻi ʻole, ke kulou ʻana a i ʻole ka haki ʻana i nā kaula fiber optic.Ke ʻimi nei i nā hewa o ka OTDR make zone End-to-End visual fiber identification.