>Does anybody know an easy and cheap way to use a PC Serial port, which is >RS-232, to listen only to data comming from a RS-485 device? I don't need >to send data back, only recieve. >thanks You'll hate this... get an RS232-TTL converter... and gang it with a RS485-TTL converter ;) Maxim has both and they're relatively cheap --Brendan -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu