Re: transceiver behavior wrt relay

[ddl@danlan.*com (Dan Lanciani)]

In article <1115243396.707479.18580@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>, bcboy@xxxxxxxxxxxxxxxxxx writes:
| Ok, so I'm reading about the PIC replacements that have been done on
| the RR501, and I came across this:
|
| >> As compared to the original X10 code in which the relay responds
| directly
| >> to the RF signal from the remote, with your code in the PIC, only
| the
| >> power line command controls the relay, which of course is a better
| >> design.
| >
| > A free benefit of full-duplex operation...
|
| I don't get it. Why would you want the relay to NOT respond when you
| send the RF command for it?

You wouldn't want the relay to not respond; that's not what the poster meant.

| Or is the issue here that the RR501
| normally doesn't send the unit 1 code on the wire, so other devices on
| unit 1 never hear it?

No, it sends it to the wire.  But it also has to special-case the code
associated with the relay because it doesn't monitor its own wire
transmissions.

| Does full-duplex in this case mean that the
| modified RR501 puts the code on the wire, then reads its own broadcast
| and flips the integrated relay?

Yes.

				Dan Lanciani
				ddl@danlan.*com