That's just the point. We need the Powers-That-Be to define "significant" distances. If significance is 5 nS, then 1 meter is the limit. If significance is 10 mS, then the limit is a couple KM. Dan / WG4S / K2 #2456 / 10cm Auxbus path<g> (Builtin KAT2) <snip> In short, officially, it is a bad idea to extend the bus for significant distances. </snip>