Which tool helps visualize faults in fiber optic cables?

A visual fault locator is specifically designed to help identify faults in fiber optic cables. It works by emitting a bright light, usually in the visible spectrum, through the optical fiber. Any breaks, bends, or faults in the cable will cause the light to scatter or be lost, making it easier to detect issues along the fiber path.

This ability to provide a visual representation of faults allows technicians to quickly locate and address problems without extensive testing or additional equipment. Such a tool is essential during installation or maintenance processes, enabling efficient troubleshooting and ensuring the integrity of the fiber network.

In contrast, the other tools listed serve different purposes. A power meter measures the power of the signal in the fiber, a light source generates a light signal for testing, and a receive cable connects various devices but does not provide fault visualization. These functions are crucial for maintaining fiber networks, but they do not specifically highlight where faults occur within the cable itself.