Fiber OTDRs Never Go Out of Style By Liz Goldsmith on December 14, 2017 • ( Leave a comment ) The optical time domain reflectometer (OTDR) is now 36 years old and aging gracefully. Read the source article at isemag.com Share this: Share on Facebook (Opens in new window) Facebook Share on X (Opens in new window) X Like this:Like Loading... Categories: Fiber, SCN Tagged as: Testing