From: schoen...@gmx.net   
      
   Am 19.06.2025 um 16:43 schrieb Robert A. Brooks:   
   > On 6/19/2025 8:09 AM, Simon Clubley wrote:   
   >   
   >> On a more serious note: Thanks, I didn't realise there was a 20mA   
   >> current loop option for VAX systems.   
   >   
   > I'm pretty sure there was a 20mA option for connectivity on the VT100   
   >   
   There definitely was a 20 mA connection on the VT220 - standard, not   
   optional. I personally used it in a pipe mill in the 1980s with RT-11 on   
   a PDP-11/73 with a DLV11-F qbus adapter. Very harsh environment, worked   
   perfectly.   
      
   --   
   Norbert Schönartz   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)