Fiber optic cables are often perceived as being fragile and prone to breakage, but this is not entirely accurate. It is true that each fiber is very fragile. And without a protective barrier, the risk of breaking is quite high. Tension and stress: Fiber optic cables can be damaged if they are subjected to too much tension or stress, as this can cause the fibers to break. To this end, the effectiveness of vibration analysis for fault detection in a half-submerged module on fiber optic cable manufacturing was studied through theo-retical methods, measurement techniques, mathematical tools, and a series of ex-periments. This misconception likely stems from the fact that the core of fiber optic cables is made of glass or plastic. 1.