Shoot me if I'm wrong, but couldn't a DMM tell you this? Also, if you don't already know, even numbered pins are on top, and odd numbers are on the bottom. Or maybe I didn't understand the question? Hope MAYBE I've helped, Tim Hamel In a message dated 7/8/99 1:55:20 AM Pacific Daylight Time, don@DONTRONICS.COM writes: > an [OT] subject, but eventually will be on topic. (dt106.html 87x > programmer and emulator) > > You get a strip of 40 wire .05" flat ribbon cable and you crimp a 40 pin > (2 by 20) IDC female header to one end, and a 40 pin male .6" header, > the type that fits into a 40 pin socket, the other end. > > (I hope I explained that in a reasonable fashion) > > The question: > Will pin 1 of each 40 pin crimped connector match up with each other, or > will they do a pin 1 to 2 reversal? > > My sources say they do a reversal, my own research tells me the ones I > have access to, do a reversal as well. > > Are there types that match up, or should I make it a reversal? > > Sorry if this ends up as a "me too" quiz show, but I really would like > to know. :-) >