FTTX Network and Planning Engineer Interview Questions and Answers

OTDR and LSPM are tools used for testing optical fibers. Types of fiber include single-mode and multi-mode.

• OTDR (Optical Time Domain Reflectometer) is used to test the integrity of optical fibers by sending pulses of light and measuring reflections.

• LSPM (Light Source Power Meter) is used to measure the power loss in optical fibers.

• Types of fiber include single-mode fiber, which is used for long-distance communication, and multi-mode fiber, which is used for shorter distances....read more