Certified Fiber Optics Practice Exam

Composite fiber optic cables are cables that contain optical fiber as well as what according to the national electric code?

1. Protective sheathing

2. Current carrying conductor

3. Insulation material

4. Signal boosters

The correct answer is: Current carrying conductor

Composite fiber optic cables are designed to include not only optical fiber but also current-carrying conductors. This design allows for the simultaneous transmission of both data via the fiber and power through the electrical conductors, making them particularly useful for applications where power and data need to be delivered to the same location. The inclusion of current-carrying conductors in composite cables is particularly important in various telecommunications and networking environments. For instance, this setup enables the powering of devices such as cameras or sensors that require both connectivity and electricity, thereby expanding the range of applications for fiber optic technology. While protective sheathing, insulation materials, and signal boosters play important roles in the overall design and functionality of fiber optic systems, they do not fulfill the specific requirements addressed in the context of the National Electric Code (NEC) which highlights the dual functionality of composite fiber optic cables.