Chain connection of analog sensors

This procedure applies to the following sensors, which are supported by the appliance and are connected to the analog ports:

Analog sensorsDaisy chain
VT500 / Temperature sensor□
VT501 / Outdoor temperature sensor (VT501)□
VT510 / Humidity sensor□
VT520 / AC Voltage detector□
VT520DIN / AC Voltmeter□
VT530 / Access sensor■
VT531 / Optical access sensor□
VT540 / Vibration sensor■
VT560 / Smoke sensor■
VT570 / PIR sensor□
VT590 / Leak sensor□
VT591 / Cable leak sensor□

VT530, VT540, and VT560 are the only analog sensors that allow non-addressable chain connection. All the sensors in one chain are seen by the system as one sensor.  One chain can have up to 10 sensors. Example of such connection: