I am currently setting up a CAV system. Im using a Global Cache to connect to the serial port. I've also played around with a CAA system and it uses the same commands. The zip file on the wiki works to turn the zones on/off. I've got all the other commands and hopefully I'll have an expanded command set done soon. I just need to find some spare time to update them all. I'lll post more as my project progresses. For those of you with an iPhone, there as app called llama panel pro that also can control the CAA/CAV systems with RNET Through the serial port.