Posts: 142
Threads: 31
Joined: Sep 2007
Hello Wilhelm,
I haven't used my Xpander Connectivity Kit, yet. But to help you I examined the original HP cable, which accompanied my Xpander, with an Ohm-meter. To my surprise it seems defect: Only the most outer layer of the stereo jack is connected to pin 5 of the DB9 connector. Pin 5 is "Signal Ground", so the other 2 segments must be "Receive Data" (Pin 2 of DB9) and "Transmit Data" (Pin 3 of DB9). I'm going to find out which signal is connected to which segment in the near future (yes, time is a big problem). You can try the same or wait until I got the result. I saw your same question at www.xpander.org so I'm going to put the answer there, too.
Hope this helps
Regards
Karl