While a cut or damaged fiber optic cable can temporarily take your network down, it is possible to quickly fix the cable with the right tools. Step1 : Identify the optical cabinet and network operating center, and find the fiber optic splitter. Poor fiber routing, incorrect bend radius, or improper labeling can all lead to signal loss, maintenance difficulties, and unexpected downtime. This article highlights. This complete guide covers everything from identifying causes of failure to advanced repair techniques, drawing on the latest industry standards and innovations.