What do OTDR displays and controls include?

The correct choice highlights the essential functions of an Optical Time-Domain Reflectometer (OTDR) display and its controls, which are crucial for performing various tests on fiber optic cables.

OTDR equipment is primarily used to analyze the characteristics of fiber optic links, and it provides operators with key task options that directly impact the measurement process. These task options include settings for range, pulse width, and measuring mode.

• Range determines how far along the fiber the OTDR will send pulses of light, essentially setting the maximum distance it will test.

• Pulse width refers to the duration of the light pulses sent into the fiber, which affects the resolution of the measurement; shorter pulses provide more detail about events in shorter distances, while longer pulses are better for longer distances.

• Measuring mode allows the operator to select different methods or configurations for analysis, such as single-ended or dual-ended measurements.

By adjusting these parameters, users can optimize their tests for the specific characteristics of the fiber they are examining, allowing for accurate identification of issues such as breaks, splices, and connectors in the fiber optic system. This comprehensive control makes B the most relevant and correct choice regarding what an OTDR displays and controls include.