transceiver behavior wrt relay

I don't get it either. The standard RR501 does forward the command to the powerline.

In article , snipped-for-privacy@thecraftstudio.com 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

I don't understand how you would know this, or why you would care. Does it behave differently at all? Can you tell how it's implemented without disassembling the PIC code?