If I understand your problem, device A will talk to B, B will talk to C, but A and C won't talk.
If so, my solution to a similar problem was to check the voltages used for signaling between serial ports on the respective computers. I learned that my "A and C" combo was a case of one machine only talking at 5v and the other would only recognize a higher voltage in the positive-going direction. I wound up fixing it by stealing +12 volts from a USB port and using it to feed a pull-up circuit for that data line. I can dig out the schematic for the fix if you want, but the idea is to find out the signal levels that the equipment you have really needs for reliable communication. An oscilloscope is the tool of choice here. Good luck, Dave McCue _______________________________________________ ERPS-list mailing list [EMAIL PROTECTED] http://lists.erps.org/mailman/listinfo/erps-list
