Denis Heidtmann wrote: > On Mon, Aug 24, 2009 at 7:56 AM, Galen Seitz<[email protected]> wrote: >> I have one of these cables if you still need one. >> >> BTW, the origin of the 'crossed' wiring is undoubtedly due to the use >> of IDC(insulation displacement connector) versions of the DB9. Here's >> an example: >> http://media.digikey.com/photos/CW Ind Photos/CWR-180-09-0000.jpg >> This DB9 is simply clamped onto the ribbon cable rather than having to >> solder each wire. The scary thing is that it is apparently cheaper to >> have someone solder 9 individual wires. Thus it's rare to see an IDC >> DB9 in a PC. >> >> -- >> Galen Seitz >> [email protected] > > Galen, > Thanks for the offer. Yes, I do still need one. Is it at least 8 inches > long?
Yes. The cable is ~10 inches. Send me a private email to discuss a hand off. > > The IDC DB9 is clearly the explanation for the "crossed" wiring. It > is scary to think that little hands soldering 9 leads is cheaper than > clamping an IDC closed. Could it be that the IDC is too wide for > mounting on a ATX case bracket? Or maybe the connector itself is more > expensive to make? Can the molded style be wired by robots? It's certainly possible that mechanical issues prevented widespread use of the IDC DB9, but with all the cost pressure of the PC market, it's surprising that someone didn't come up with a cheaper solution. I guess it just shows how low the labor costs are in some parts of Asia. -- Galen Seitz [email protected] _______________________________________________ PLUG mailing list [email protected] http://lists.pdxlinux.org/mailman/listinfo/plug
