There was a product we bought about 10 years ago that worked very well called DataScope. It used a PC with two serial ports and captured both sides of the data on an RS232 line. I tracked the software down on an old disk and the company that wrote it have renamed the product MicroTap. http://www.paladinsoftware.com/Corporate/Home.htm w.. John Waters wrote: > > Hi All, > > I need to monitor the information passing through the RS-232 line of a PC, > is there any data tapping device available in the market? Or is it easy and > how to build one? > > Thanks in advance! > > John > > _________________________________________________________________ > Help STOP SPAM with the new MSN 8 and get 2 months FREE* > http://join.msn.com/?page=features/junkmail > > -- > http://www.piclist.com hint: To leave the PICList > mailto:piclist-unsubscribe-request@mitvma.mit.edu -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu