An optoelectronic composite cable, also known as an optical-electric composite cable, is a sophisticated piece of engineering that combines optical fibers for data transmission with copper conductors for power delivery within a single protective structure. Learn about types, applications, technical specs, and their role in industrial, offshore, and smart infrastructure systems. In the rapidly evolving landscape of modern. In the ever-evolving landscape of modern communication and power transmission, optoelectronic composite cables have emerged as a groundbreaking solution. NEC (National Electrical Code) from the NFPA (National Fire Protection Association): A cable containing optical fibers and current-carrying electrical conductors.