1. Preparation Before Testing
   – Clean fiber and connectors
   – Choose correct wavelength (1310nm/1550nm)
   – Set pulse width, range, and averaging time
2. Connect OTDR to Fiber
   – Use a launch cable (mandatory)
   – Use a receive cable (optional for accuracy)
3. Perform the Test
   – Start test, wait for scan
   – Analyze the trace: reflections, losses, attenuation
4. Analyze & Save
   – Identify events (splices, bends, breaks)
   – Check dB loss (e.g. < 0.3 dB per connector)
   – Save the result and generate reports
5. Troubleshooting
   – High loss or break? → Check for dirty connectors, tight bends, damage
   – Noisy trace? → Increase averaging time, adjust pulse width

A tool for testing and troubleshooting fiber optic cables.
– Measures fiber length, detects faults like breaks or bends, and checks splice/connector losses.