<snip> > > >A small card, with a hard-wired 25-way D connector (male) attached. <snip> sounds like some serial card to me (25 pin looks like RS232(?)) Any IC's on the card? Does it use the +-12V? Hope this was helpful wolfgang -- Standard disclaimer applies (anyone following advice given here does so at her/his own risk - I speak for myself and not for my employer).