Fiber-optic cables beat copper wires for signal transmission because they carry far more bandwidth, suffer almost no signal loss over long distances, are immune to electromagnetic interference, and are lighter, thinner, and more durable. Unlike traditional copper-based DSL or coaxial cable internet, fiber optic uses thin strands of glass or plastic to transmit data as pulses of light. This is due to several potential risks and complications that can arise from such an arrangement. However, in older homes or those with outdated wiring, it may be necessary to rewire certain areas to accommodate fiber optic connections. The only restriction is not in environmental air unless listed. Utilities build fiber optic networks in similar ways that others build them, aerial and underground, but they also mix aerial cables in their power distribution cables, sharing towers and poles. In order to do this, they use some very different types of cables. Besides the use of special cables on. Many people ask the same question: Can you use a fiber optic cable with an RJ45 port? The short answer is no - RJ45 connectors are designed for electrical Ethernet signals, while fiber optics transmit light pulses through glass or plastic.