The system is yours if your interested, give me a way to contact you off this board we can arrange a way to get it to you, I'm in the Western PA area.
I used a Computer Bus Adapter (CBACS) card in an expansion slot in an IBM AT, connected to the Serial Interface Card (USIC) with a 50 conductor...
I have the complete system I build about 1990 - Universal Bus Extender Card, Universal Serial Interface Card, I/O Motherboard. Input Cards, Output...