XPost: uk.comp.os.linux, alt.comp.microsoft.windows   
   From: java@evij.com.invalid   
      
   On 2025-05-29 23:55, Dan Purgert wrote:   
   >   
   > Yes, you need both ends in order to complete the test circuit; but you   
   > can look at them independently. Verification is basically that on the   
   > REMOTE end (smaller unit without the battery), the LEDs count in the   
   > correct order (1,2,...8,G).  LEDs on the main end (the one with the   
   > battery) -- at least in the testers I have here -- are just wired in   
   > parallel to the conductor under test, and don't actually provide any   
   > insight into the conductor state.   
   >   
   > Note that these LED testers will only find *electrical* faults (crossed   
   > conductors, missed terminations, etc.); but the testers can't confirm if   
   > the run is actually "good". For example, if it got crushed in a bend   
   > somewhere, electrically the cable is OK, but the excessive bend radius   
   > may cause problems at gbit speeds.   
      
   Understood, thanks for the explanation.   
      
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