Guy Palmer, thank you for the great info.

Can I use the X10 15A Split Receptacle Module (Item# 2040) along with the IR543.

I would wire the receptable module to any wall outlet then plug in the IR543 to another outlet. My MX-980 would send IR signal to IR543 then the IR543 sends RF signal to appliance/split receptable module.

How do I program the MX-980 to work with the IR543?

If I am wrong can you explain how it works

What else can I do with the IR543. Can I add more appliance/receptable modules and control them independently.

Aside from the appliance modules what else can you connect and control with the IR543

This setup sounds just like what I am looking for and seems like I can expand on it in the future.

Let me know,

Thanks,
Scott