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Product page: https://vutlan.com/can-sensors/27-vt460-smoke-humidity-and-temperature-sensor.html
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Function and purpose
Smoke, humidity, and temperature sensor with high smoke sensitivity and precise temperature, and humidity measurement. The detector responds to the appearance of the smoke of the low concentration.
Physical description
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From the picture above:
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Connect one end of the RJ11 / RJ12 cable to the monitoring unit CAN port and the other end to any CAN input of the smoke sensor. It is possible to connect up to 10 sensors to one CAN port. To do so connect a new RJ11 cable to a free input of an already connected smoke sensor and the other end to the next smoke sensor in a chain. See the picture below. RJ11 or RJ12 cable pinouts can be found in the picture below. After the system will startstarts, configure the CAN bus, after configuration, the LED on the smoke detector will blink dimly once a second.
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Now we need to switch TR to position OFF for all sensors except the last sensor. And switch TR to the OFF position for the last sensor.
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