Isixhobo seBanga leNgqondo Efanelekileyo yokutyibilika kobhedu olwenziweyo, intsimbi okanye i-aluminium ye-almor kwi-fiber offir, ityhubhu ye-sube ye-fiber of fiber optic. Uyilo oluguquguqukayo luvumela ijacket okanye isihlangu esityibilika kwi-no-fiber optic yentambo. Isixhobo se-Polythylene Jacket kunye ne-Armor kumsebenzi omnye.