FIS OTDR Viewer 1.4

FIS OTDR Viewer is a desktop utility designed to open and review optical time‑domain reflectometer (OTDR) traces. It helps fiber professionals visualize link performance, locate events, and verify splices and connectors without needing access to the original OTDR instrument.

Key capabilities:

• View and navigate OTDR trace files (e.g., .sor)
• Zoom, pan, and use measurement cursors to read distance and loss
• Inspect event details along the fiber link
• Capture and export trace images for documentation and reporting

Ideal for installation, maintenance, and troubleshooting workflows, FIS OTDR Viewer provides a straightforward interface for quick inspection and clear communication of test results.

FIS OTDR Viewer is developed by FIS Fiber Instrument Sales, Inc.. The most popular versions of this product among our users are: 1.0, 1.2 and 1.4. The name of the program executable file is Otdr.exe.