Question #36268

What is Optical Time Domian Reflectometer (OTDR) in communication systems. How its terminology used in fault detection of Optical Fibre?

  • Richard

TDR send a signal down a medium (fibre, cable, etc), and any flaws in the medium will reflect some of the signal back again. By measuring the time for the reflection to come back and knowing the transmission speed of the medium, you can work out where the flaw is.

  • Tracy L

There are so many answers to this on the internet I won't waste time explaining it again read Flukes page

  • Blake E

This sounds like a homework question. Why don't you google it?