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I was going through documents related to Optical Fiber communication. There to define optical fiber, parameter "data point spacing" is used. I tried googling, but there is no proper explanation any where. Can someone tell me what exactly it is.

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  • $\begingroup$ please post a link to the document or quote the pertinent paragraphs. $\endgroup$ – Carl Witthoft Aug 26 '15 at 12:46
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I would try Googling instead of "goggling." In less than 10 seconds I found your term to be the definition of the distance resolution capability of an OTDR machine. Thus, a "data point spacing" of ,e.g., 5 cm indicates the OTDR can tell you where an event occurred to within 5cm of the exact location on the fiber line.

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