🚀 go-pugleaf

I'm an owner of a good amount of the carrier-current remote equipment with
the various nameplates -- Timer, Telephone Responder, Powerhouse... and I
have a few questions for netland:

Are parameters for the X10 system publicly available, if so, where?  i.e.
what must be broadcast on the AC line for "Unit E-15 / Dim / All off"  I'm
interested in a telephone controller that would respond to touch-tones,
but since I have the Powerhouse I would rather not get the Homeminder, so:

Are ROM or other chips with the X10 command set available for purchase?  It
would be amazingly simple to buy a chip for the X10 controls, hook it up to
a tone decoder, and - presto - telephone response.  (Or are the chips off
limits to prevent people from doing exactly that?)

A general electronics question: Since I've never actually seen a design for
a carrier-current operated device, I'm curious as to how the transmitter is
isolated from the high-voltage AC on the "antenna" i.e. the line cord.

Thanks in advance for any comments, answers, sources, advice.

					James

domain: syap@tut.cc.rochester.edu
  path: rochester!ur-tut!syap			"Piano is my forte"
 GEnie: FITZWILLIAM

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