Amasignali omsakazo ayindlela ebalulekile yokuxhumana yezinhlelo zokusebenza ezihlukahlukene, njengokusakaza, izinsizakalo eziphuthumayo, nokuzulazula. Kodwa-ke, ukulahlekelwa kwesignali kungenzeka ngenxa yezici ezihlukahlukene, okuholela ekwamukeleni okuncane noma ukungabikho nhlobo. Ezinye izinkinga ezivamile ezingase zithinte isignali yakho yomsakazo zihlanganisa ukuvinjelwa ngokomzimba, ukuphazamiseka kukazibuthe kagesi, ibanga ukusuka kumthombo, nezinkinga ze-antenna. Kubalulekile ukukhomba imbangela yokulahleka kwesignali ukuze kubhekwane nenkinga futhi kuqinisekiswe ukuxhumana okuthembekile.
Izimbangela ezivame kakhulu zokwehluleka kwe-fiber:
• Ukuphuka kwefiber ngenxa yokucindezeleka ngokomzimba noma ukugoba ngokweqile
• Amandla okudlulisa anganele
• Ukulahleka kwesignali okweqile ngenxa yezikhonkwane zekhebula ezinde
• Izixhumi ezingcolile zingabangela ukulahlekelwa kwesignali ngokweqile
• Ukulahleka kwesignali ngokweqile ngenxa yokungaphumeleli kwesixhumi noma isixhumi
• Ukulahleka kwesignali ngokweqile ngenxa yezixhumi noma izixhumi eziningi kakhulu
• Ukuxhumeka okungalungile kwefayibha kuphaneli yokunamathisela noma ithreyi le-splice
Ngokuvamile, uma uxhumano kwehluleka ngokuphelele, kungenxa yokuthi ikhebula liphukile. Kodwa-ke, uma ukuxhumana kuphazamiseka, kunezizathu ezimbalwa ezingenzeka:
• Ukunciphisa ikhebula kungase kube phezulu kakhulu ngenxa yezixhumi zekhwalithi engeyinhle noma izixhumi eziningi kakhulu.
• Uthuli, izigxivizo zeminwe, imihuzuko, nomswakama kungangcolisa izixhumi.
• Amandla okudlulisela aphansi.
• Ukuxhumana okungalungile ekhabetheni lezintambo.