The OTDR trace viewer is not a simple "pass/fail" screen. It is a geological map of your fiber link. Learning to interpret the bumps, dips, and spikes is what separates a cable puller from a network diagnostician.
Here is your practical guide to understanding what the trace viewer is actually telling you. When you look at an OTDR trace viewer, you are looking at a graph. The X-axis represents distance (length of the fiber). The Y-axis represents signal loss (dB). otdr trace viewer
If you work with fiber optics, the OTDR (Optical Time-Domain Reflectometer) is likely your most trusted (and expensive) troubleshooting tool. But let’s be honest: owning an OTDR is only half the battle. The real skill lies in reading the trace . The OTDR trace viewer is not a simple "pass/fail" screen