I haven't played around with X-10 stuff in years but I distinctly recall
signal coupling units made by the manufacturers to send the X--10
signals across the phases/hot legs in the main electrical panel. I don't
think the things were "diodes". You can make your own with a 0.1uF,630v
polyester capacitor, 18uH inductor and a 0.25A in-line fuse (optional,
but recommended) connected in series across the hot legs. The safest way
to do it is to install a 2 pole breaker and hook it up there or slip the
leads under those already hooked to a 2 pole breaker (uh, first turn the
breaker off). I would install the small fuse in series with the
components because I've seen voltage spikes short capacitors and let all
the magic smoke out.
Thats X-10, check out Smarthome.com they have them. But I'd go with
their Insteon technology instead, it is way more reliable than the old
X-10 stuff. I'm using Insteon all over the house, works great.
On Fri, 8 Jan 2010 11:01:22 -0800 (PST), Limp Arbor
They were still RF, but over the line. X-10 is a common supplier.
Radio shack used to have them under the "whole house" brand in Canada
- and RCA had them too. Among others. I've got X10, RCA GE and Whole
House and they all work together. You set what is called a "house
code" and a "circuit code".
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