How to "read" or "listen" to 12V trigger output from an AV Receiver?

Other Devices & Integrations Home Theater & Smart Speakers
1

My AV receiver which has a 12V output trigger, which I want to use as a trigger in a Vera scene. Many AV receiver have these outputs and they are very common. Basically what it does is, when the AV receiver is turn on, it turns on 12 volt on one of its trigger outputs (most receivers have 2 or 3 of these). Normally these 12V trigger outputs are used for turning on a screen or projector, through a relay-switch.

Is there a zwave enabled device that can “read” or “listen” for this 12V “signal”?
Or is there any other way to listen for such trigger?
I would like to standardize on doing home automation in its full width with one solution.

On a side question, are there zwave enabled devices that can output 12V, for older devices that can only be triggered by such 12V trigger outputs?

Thanks!

ps. my AV receiver is a Meridian which has no unpn or http interface :frowning:

2

You could use a relay and wire the dry contact side of it to a HRDS1 or similar device.

3

Something like this should work OK:

Relay:

Zwave door sensor:
http://www.smarthome-products.com/p-951-hrds1-wireless-doorwindow-sensor.aspx

4

I understand the part where you want to use the 12V out to connect to the relay, but I don’t get the door contact “connection” (relay to door contact)…

Maybe it is because I don’t understand what you mean with “dry contact side”?

I do appreciate your thoughts!

5

I guess that he means that if you plug the relay to the 12v, and the open circuit of the relay to the door sensor, when the AMplifier is turned on, 12v signal would pass the relay, closing the circuit on the other side of the relay, breaking the connection of the door sensor and the sensor would “think” that the door is open, and therefore send a zwave trigger.

When turning off the amplifier, 12v signal would stop, returning the relay to open state, and therefore door sensor would close, sending another zwave trigger.

Alejandro.

6

Correct, the door sensors have a terminal to attach an external input to (the switched side of the relay), and so once that’s done the relay gets energized by the receiver, the switched side of the relay triggers the HRDS1, and that can be used as a trigger for any scene.