What does "scanning" refer to in the context of fiber optics?

In the context of fiber optics, "scanning" primarily refers to the process of identifying faults in fiber cables. This involves using specialized equipment, such as optical time-domain reflectometers (OTDR), to inspect the integrity of the fiber and locate any breaks, bends, or other defects that may affect signal transmission. The scanning process can help technicians pinpoint issues along the fiber path, allowing for timely maintenance and efficient troubleshooting.

Understanding scanning as a fault-identification process is critical for maintaining the performance and reliability of fiber optic systems. It ensures that any problems in the network can be detected promptly, thus supporting optimal operation and minimizing downtime.