Category cables have multiple solid conductors or conductors twisted together in pairs that transmit electrical and digital signals to computers and telecommunications equipment. Category cable patch cords are lengths of insulated cable with connectors on both ends that link telecommunications equipment to services. Fiber optic cable transmits an optical power source to connect telecommunications equipment to network service. Fiber optic patch cords are lengths of insulated cable with connectors on both ends that link telecommunications equipment and devices to network service over long or short distances. Coaxial cable transmits cable, satellite, and audio signals to televisions and radios.