From: jrwalliker@gmail.com   
      
   On 09/01/2026 15:40, Theo wrote:   
   > Don Y  wrote:   
   >> Make sense?   
   >>   
   >> The two questions are:   
   >> - is there a "reusable" IDC fixture that could provide this   
   >> connection as part of the tester (without having to incur the   
   >> cost of consumables)?   
   >> - any potential risks in this approach (besides ensuring that   
   >> the testing is done after the possibility of any cable damage   
   >> has passed)?   
   >>   
   >> Bonus question:  any way to check the cable without piercing the   
   >> insulation on each end?   
   >   
   > I wonder if there's an IDC fixture for standard cat5e/etc type cables,   
   > without having to untwist the twisted pairs?   
   >   
   > ie the installer feeds through the brown pair through the brown slot, blue   
   > through blue slot, etc.  Then squeeze the two parts together and the IDC   
   > grabs the conductors, making contact and connects to an RJ45 socket.   
   >   
   > You end up with something where you potentially have swaps within pairs.   
   > Maybe you don't actually care about that if both ends are swapped (the   
   > signal doesn't care the colour of the insulation), or maybe that's fixable   
   > later with jumpers on the PCB.   
   >   
   > Then this is both your test fixture and final termination.   
   >   
   > I don't think a typical ribbon cable IDC would do it, but perhaps there is   
   > another sort of IDC socket which is set up so a twisted pair would get   
   > clamped and pierced correctly?   
      
   These perhaps?   
   https://www.farnell.com/datasheets/3205044.pdf   
   John   
      
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