Need help using MEL command "Xout" with an X-10 PCS-05 bidir pwr-line interface

[ardhuru]

But, it did seem strange that psc05 led just seemed to dim and stay dimmed, rather than blinking off when valid X-10 codes were going across the link, as when I used a real X-10 remote to do that same job.

Not strange, really. It just reiterates what you have already observed. The fact that it is working well as a receiver. You are having a problem transmitting thru' the PSC05; when you use any other transmitter and find the LED blinking, the PSC05 is actually acknowledging the *receipt* of an X10 signal; the signal it sees on the mains created by another device, not itself. Which again suggests your problem to be related to its transmission circuit, either internal or external.

Could you send us a screen-grab of the actual signal Xout produces taken at the input of the PSC05?

Regards,

Anand