ST connectors use a bayonet twist-lock mechanism. A fiber optic connector is a mechanical device used to align and join optical fibers, enabling light to pass through with minimal loss. Unlike fiber splicing, which is permanent, connectors allow for easy connection and disconnection of cables, making them ideal for maintenance and flexibility in. Compared to Copper cables, Fiber connector types are incredibly varied. Putting twists in the cable greatly increases your chances of breaking the fibers. Just remember these rules: Never pull on the connector. However, these cables are not immune to external influences that can affect their performance and. When laying loops of fiber on a surface during a pull, use “figure-8” loops to prevent twisting the cable.