by JanHgm » Fri May 14, 2010 12:48 pm
I used a USB to RS232 convertor for I while but I would advise to use a PCMСIA to RS232 convertor.
Reasoning; More reliable and no risks to loose contact with connector due to spokes on the line.
I used the convertor in combination with a simple handset and a finish passing detector beam.
With the USB-2-RS232 adapter I was always allowed to disconnect a cable without risking to loose connection with adapter.
With the PCMСIA-2-RS232 card I can always connect an disconnect devices.
Jan