Fiber optic cables have a minimum bend radius (typically about 11 inches for a 48-strand cable) and can't make sharp turns without damaging the delicate glass fibers inside. 5 microns for. Key Takeaway: Fiber optic cables are characterized by their thin diameter, vibrant color-coded jackets, and unique plastic snap-in connectors unlike traditional copper wires. Perfect for fast, error-free termination in your ODF or splice closures. Available in OS2/OM3/OM4 at factory-direct wholesale pricing. Here are detailed steps and characteristics to help you identify a fiber cable: 1.