Features of composite optical cables include

Composite optical cables are hybrid cables that combine optical fibers for data transmission with copper conductors for power delivery in a single, unified cable.

Structure and Components

Composite optical cables, also known as optoelectronic or hybrid cables, integrate multiple components into a single sheath. They typically include:

• Optical fiber cores: Usually single-mode fibers in loose tubes filled with waterproof gel, designed for high-speed data transmission with low latency and minimal interference .
• Copper conductors: Twisted pairs or stranded wires that carry DC power, often ranging from 48 V to 400 V, to supply remote devices .
• Central strength member: Made of fiberglass-reinforced plastic (FRP) or steel, providing mechanical stability.
• Insulating and protective layers: Water-blocking fillers, laminated steel tape, and outer jackets (PE or LSZH) protect the cable from environmental stress and mechanical damage . This combination allows the cable to simultaneously transmit data and power, reducing the need for separate installations.

Function and Advantages

• Data transmission: Optical fibers carry high-bandwidth signals, such as CPRI or eCPRI, for telecommunications, internet, or video applications .
• Power delivery: Copper conductors provide electrical power to remote equipment like Remote Radio Units (RRUs), surveillance cameras, or traffic signals .
• Interference resistance: Optical fibers are immune to electromagnetic interference, ensuring reliable signal quality .
• Space and cost efficiency: Combining power and data in one cable reduces installation complexity, saves space, and lowers maintenance costs .

Applications

Composite optical cables are widely used in:

• Telecommunications: Connecting Baseband Units (BBUs) to RRUs in distributed base station architectures .
• Urban infrastructure: Powering and connecting surveillance cameras, traffic lights, and smart city devices .
• High-traffic buildings: Airports, office complexes, and campuses where both data and power are required .

Summary

In essence, composite optical cables provide a versatile solution by integrating high-speed optical communication and electrical power delivery into a single, robust cable. This makes them ideal for modern telecommunication networks, smart city infrastructure, and any application requiring simultaneous data and power transmission.