I have used a pair of Philips P82B715 which was specifically designed for I2C devices. I haven't used it in an I2C application, but have used it with the Dallas 1-W family and can reliably communicate over 2000 feet. Peter H. Anderson, http://www.phanderson.com, pha(at)phanderson.com Sign up for Free-for-Life E-mail at http://www.Africana.com -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! use mailto:listserv@mitvma.mit.edu?body=SET%20PICList%20DIGEST