Which statement is true regarding optical fiber identifiers?

Optical fiber identifiers are specialized tools designed to help technicians identify optical fibers in a complex network. One of their key functionalities is the ability to detect live traffic signals or modulated test signals on individual fibers. This capability is particularly important for technicians working in environments where multiple fibers are present, as it allows them to verify the presence and activity of data on specific fibers without disrupting the network.

The method by which these identifiers operate often involves sensing the light signals that travel through the fiber, allowing them to identify active fibers quickly. This feature is critical for maintenance and troubleshooting purposes, ensuring that technicians can efficiently manage fiber connections while minimizing downtime.

In contrast, the other options present misconceptions about the capabilities of optical fiber identifiers. They are not solely limited to point-to-point connections, they can indeed detect live signals, and they do not require manual operation for detection, as many models can function automatically with minimal user intervention.