If you have an I2C master talking over a few feet of RJ45 type cable (telco type cable) to a slave, what side ought to be grounded? both? digital ground? AC ground? I'm thinkin digital ground on the master connector only. comments? _________________________________________________________________ Send and receive Hotmail on your mobile device: http://mobile.msn.com -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body