I'm a total noob and trying to plan a replacement security system with some automation functions. My question is about the interface of the two systems. So, I know about the M1SXLU, but the Radio RA2 also has an Ethernet connection. So, can the M1 control the Radio RA2 system via the Ethernet connection (with the Ethernet module, of course) or do I really need the M1SXLU? I can't find anything about this here or on the Elk site. Thanks for the help.