From: ralffmail-news1@yahoo.de   
      
   Hi,   
      
   I recently obtained an old TRS-80 Model I. That Box is equipped with a   
   "Schmidtke Computertechnik SIA"-Board, a two-Port serial I/O Card using   
   a Z80 CTC and SIO and outputs to two 9-Pin Sub-D Connectors (it's a   
   small Card that is plugged into the Z80-Socket (of course it offers a   
   socket that then holds the Z80).   
      
   As I was unable to get it to Communicate with my Linux-Laptop I started   
   to check the Board & Connectors and found, that GND is connected to Pin   
   1 (and not Pin 5) of the 9-Pin Sub-D.   
      
   I'm now going to measure how the Signals are routed -- however, just to   
   make sure it would be great if someone here did have some Info on that   
   card and could post (or eMail) it!   
      
   MTIA!   
   Cheers,   
   _ralf_   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)