How do I use the dry contacts on the bottom of the Receiver/Speaker to activate an external device?
There are four “C” relays (aka terminal outputs) on the bottom of the VA-6000S Base Unit. When a Sensor is triggered, you have the option of activating an external device hooked up to one of these dry contacts (in addition to playing the message alert). The four terminal outputs (labeled NO.1 -> NO.4) correlate to message Zone #1 -> Zone #4 on the Speaker/Receiver. Note: These “C” relays do not provide power but function as a switch. It is assumed that the device to be activated has it’s own power supply. If you look at the contacts, you will notice that each zone has three screw outputs.
