On Fri, 18 May 2007, Gregory Nowak wrote: > No, speakup won't work through a converter, but just about anything > else, especially user space programs will work through a converter > just fine. My experience with a USA19X USB to serial converter argues otherwise. I hooked a Power Braille 80 to one, and configured Brltty to use it. Things were always very unstable. Brltty would routinely lose communications with the Braille display, and thus, it would go dead for several seconds at a time, then come back resulting in error messages on the console. This was especially bad when there was a lot of data being sent to the display. So, I now have the Braille display on a PCI serial card, the Dectalk USB in serial mode on the one internal serial port, and my UPS on the USB-to-serial converter. This works quite well for me since the UPS sends no data, just changes one line when the power goes out, and another when the battery is about to die.
