sentences:  In these cables, the optical fibers carry information, and the electrical conductors are used to transmit power.These cables can be placed in several environments to serve antennas mounted on poles, towers, and other structures.According to Telcordia GR-3173, "Generic Requirements for Hybrid Optical and Electrical Cables for Use in Wireless Outdoor Fiber To The Antenna (FTTA) Applications," these hybrid cables have optical fibers, twisted pair/quad elements, coaxial cables or current-carrying electrical conductors under a common outer jacket.