This guide covers the essential tools and step-by-step procedures for low-loss fiber optic cable repair. Construction Activities Natural Causes. The optics themselves were all purchased within the last couple of years and come from multiple vendors-- primarily FS. com, Approved Networks, and knock-off Cisco. Learn crucial steps from securing the area, reporting damage, to staying informed about potential hazards. Fiber optic cables are a vital part of our modern digital infrastructure, but if broken or damaged, they can pose a significant. This guide explores the most common causes of fiber-optic cable damage, explains the technical impact of each risk, and provides actionable strategies to protect your fiber infrastructure. Accidental breaks (especially cable damage surrounding new construction areas) are the most common and just as damaging as the other reasons we'll mention below.