I currently have a Xantech IR distribution system in my theater that I use to control components and Lighting. I would like to also set up an ipad with Irule to give a bit more control when it comes to lighting and furnace control (electric duct dampers). I would like to be able to use the ipad but still retain my old system - I would rather keep my hard button remote for simple tasks like changing volume, pause during a movie etc. The ipad could be for initial setup. I already use the ipad to control a music server through a squeezebox.
Can the Global Cache units be hooked up to an existing IR distribution system while keeping the regular IR receiver?
I just went through this. Yes it can, but you need to connect it via an optoisolator to prevent interference, and the voltage (3.3v and 12v) difference between the GC and the Xantech block. Global Cache makes a cable called the GC-CGX to accomplish just that. It's around 40 bucks on the internet. If you're into making your own, I came across this circuit: http://www.pbase.com/deanej/image/67535245
I purchased the parts for it but haven't gotten around to building it yet. Substitute the first 2.2k ohm resistor for a 1k one because the Global Cache units output at 3.3v, while that schematic is for a 5v source.
Thanks for the info - How do you go about feeding the output of the global cache into the Xantech connecting block - There is only one IR input and that is taken by the IR receiver - can you put a splitter on the input?