What should be performed to test fiber optic cables effectively?

Using an Optical Time-Domain Reflectometer (OTDR) test to evaluate fiber optic cables is crucial because it provides detailed insights into the overall health and performance of the fiber link. An OTDR sends pulses of light into the fiber and measures the reflections that return from various points along the cable. This allows for the identification of splice losses, connector losses, bends, and breaks in the fiber along with the exact locations of these issues.

The OTDR is capable of measuring the length of the cable and determining the quality of the connections, making it more comprehensive than other testing methods. This test can also highlight minor faults that might be missed by simpler testing methods, ensuring that any problems are addressed before the fiber optic network is put into full service.

In contrast, a continuity test, though useful in identifying whether the fiber is complete, does not provide information about the quality of connections or losses along the fiber. A signal strength test could indicate whether the light signal is being transmitted, but it would not help identify specific problems along the cable. Similarly, a cable length test is primarily for ensuring the cable meets specified lengths but does not assess the physical condition of the fiber or its connections. Thus, using an OTDR is the most effective choice for comprehensive