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. Once these tools are ready, you can start the repair step by step. Locates fiber breaks and measures signal loss before and after. It is essential to follow correct procedures in administration of fiber optic patch cords to achieve optimum performance and reliability. What is Fiber Optic Splicing and Why is it Needed? – #1. Use and Maintain Your. Once you nail the logic chain— raw fiber → protected cable → spliced pigtail interfaces → flexible patching —you control loss budgets, installation time, and maintenance risk.