Clive, this is good news as I've not come across anyone confessing to have one !

My system is using 4 axis (as A is used as a slave) - so in simple idiot proof terms, (remembering that I've not been able to interpret that table), what do I need to do to drive one of these relays on and off from G code or otherwise ? Presumably there are links and DIP switches as far as hardware is concerned, then some set up in MACH-3 ?

I'd much appreciate your input.