I've been very pleased with a wire from each of pins 2 and 3 to pin 3 of two 9-pin DB9 plugs. This custom cable is connected to a second machine's two serial ports. Peter -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads