>"Additionally, signal directional markings are provided for optimum >signal transfer" > >Ah, there's a clue. Must have diodes in it Yeah, but ... but ... but ... The arrows go both ways, which way should I plug it in ..... (expensive support call to 0900 number coming up ...) -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist