I quite fancy doing something like this, along with perhaps some method to
control garden sprinklers, but am concerened about reliability. If
controlled from say, a ring main, the signals would have to go back to the
CU, through an RCD, meter tails, a switchfuse, 30m armoured cable, and
then another RCD before reaching the module. How does this compare to
your setup? Have you had any reliability issues?

Many thanks,

Chris Key

Why would the signal need to go over meter tails? Is there a seperate meter
to each building? If so you may be fed from different phases...

My arrangement from X10 computer controller goes: (computer in loft, mains
supplied as spur from upstairs ring main)
Ring CU MCB busbar MCB 30m (ish) SWA cable garage CU main switch
busbar MCB radial circuit in garage X10 module.
Signals travel fine in both directions, if I use an X10 transmitter in the
garage, the computer recieves them fine also.

Alan.