ATIS Telecom Glossary
Monday, November 24, 2014

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time-domain reflectometer (TDR)
An electronic instrument used to characterize and locate faults in metallic cables (e.g., twisted pair, coax). Note 1: A TDR transmits a fast rise time pulse along the conductor. The resulting reflected pulse is measured at the input as a function of time and displayed on the instrument or plotted, as a function of cable length. Note 2: A TDR may be used to verify cable impedance characteristics, splice and connector location and associated losses, and estimate cable lengths.

 

 

 

 

 

 

 

 

 

 



 
These definitions were prepared by ATIS Committee PRQC
 
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