High Tensile Strength: It incorporates a 0. 45mm stainless steel wire strand structure, providing a tensile strength of >1200N. This allows it to handle the mechanical tension required for pole-to-pole or pole-to-building spans. The SC Fiber Patch Cord is a. Fibertronics, Inc. Built with a rugged steel armor layer, these cables are engineered to resist crushing, impact, and rodent. Unarmored fiber cables, also known as standard Without the added armor layer, they are lighter, more flexible, and easier to install. It is a decision about how your fiber will survive in the real world. However, a protective layer of Kelvar, steel, and aluminium surrounds the core, giving extra protection against crushing, abrasion, and rodent damage.