Hey all. When I built my house nearly 20 years ago, I prewired for a potential A-BUS audio system that I will never need. For those unfamiliar, A-BUS is a whole-house audio system where the amps were in each keypad, so there's Cat5 from a central location to a point above the main switch in most rooms, and speaker wire from there to two in-ceiling locations.
One idea I had was to put in ceiling-mount Aeotec multisensors using the Aeotec Recessor in the ceiling locations, then I could use the speaker wire to provide the 5VDC they need. But I'm not sure if there's a 5VDC supply I can put in the back of the single-gang box, shelly-style? Or is there a way to put a 5VDC source in the central wiring closet and somehow span both the cat5 and speaker wire? I feel that this might end up being too expensive to be practical.
Thanks, those look affordable. I like the fact that it allows a central POE source. But is it okay to put it in the back of an existing single-gang box? If I have to fashion an access panel above the switches the WAF immediately plummets.
Yikes. While I don't think electrically there is much risk for burying these things in the wall, I think having access for troubleshooting or remote resets will be needed. It could be as simple as putting in a double plate over the existing switch and a blank right next to it.
Wow I haven’t thought of A-Bus in years! Buddy owned an AV company and I would help him from time to time and he wired his house with A-Bus.
I recently bought one of these step down converters that is connected to a 24W 12VDC power supply. I then have a 5 port wago supplying 3.3VDC power to 5 ceiling sensors so I don’t have to change batteries. Thinking you can put this buck converter in your structured wiring can and send power to each room via Ethernet and speaker wire. https://www.amazon.com/dp/B00C0KL1OM
