Mayelana nokuxhumana okubonakalayo, ukulawulwa kwamandla kufakazela ukuthi kuyindlela ebalulekile uma kuziwa ekuzinzeni kanye nekhono lamasignali esizindeni esihlosiwe. Ngokukhula kwesidingo sejubane namandla amanethiwekhi okuxhumana, kunesidingo sangempela sokuphatha amandla amasignali okukhanya asakazwa nge-fiber optics ngempumelelo. Lokhu kuye kwaholela ekwakhekeni kwe-fiber opticama-attenuatorsnjengesidingo sokusebenzisa imicu. Banesicelo esibucayi ekusebenzeni njengeama-attenuatorsngaleyo ndlela kuvimbela amandla amasignali optical ukuya phezulu adala umonakalo kumishini eyamukelayo noma amaphethini esignali asontekile.