Hi, I need to fully isolate two boards which are connected with 34 PIN cable. ( one board is mine so I can redesign it ). I found some optocouplers but they have only 4 channels so it would mean putting 8 ICs on board which doesn't seem to be a very good idea. Does anybody know any other possible way of isolating these boards? Thank you very much, Sam -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist