To provide additional protection and durability, fiber-optic cables often include strengthening fibers made of materials such as aramid yarn (also known as Kevlar) or steel wire. Steel messenger strand consists of six wires wrapped around a center wire. The most common variety is carbon steel with a zinc coating. The zinc coating provides cathodic protection (CP) to the steel, meaning that red rust is prevented even on the cut ends. Strands are specified by diameter and. A fiber-optic cable, also known as an optical-fiber cable, is an assembly similar to an electrical cable but containing one or more optical fibers that are used to carry light. The optical fiber elements are typically individually coated with plastic layers and contained in a protective tube. A SWA Fiber Optic Cable, or Steel Wire Armoured Fibre Optic Cable, is a type of armored fiber cable designed to provide mechanical protection while maintaining high-speed data transmission performance. It is widely used in environments where durability and resilience against external forces are. When choosing cables for communication and infrastructure, two standout options come to mind: steel wire strand and fiber optic cable.