A cable system having a coaxial cable and a plurality of twisted wire pairs and optical fibers has the capacity to carry a broad range of telephonic, video and demodulated data signal information in addition to optical signals. The cable is suitable for long distance telephonic, video and optical signals...http://www.google.es/patents/US5418878?utm_source=gb-gplus-sharePatente US5418878 - Multi-mode communications cable having a coaxial cable with twisted electrical conductors and optical fibers
Multi-mode communications cable having a coaxial cable with twisted ...