> I think you are looking at an HP-IB interface, not a true > centronics. I > could be wrong. I do not think you can get an HP-IB i/f for a PC. Au contraire--there is a ton of support, both hardware and software: http://www.labmaster.com http://www.inesinc.com/atinter.htm http://www.transera.com/htbasic/hm900.html http://www.ziatech.com/datasheet/1444.htm http://www.cec488.com/ieee488.htm and many more, including at least one from HP (well, Agilent now): http://www.tm.agilent.com/tmo/datasheets/English/HP82335B.html Steve Dirickson WestWin Consulting [log in to unmask] (360) 598-6111