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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 start, configure the CAN bus, after configuration, the LED on the smoke detector will blink dimly once a second.
Using the pictures below, install a jumper on VT460.
Now we need to switch TR to position OFF for all sensors except the last sensor. And switch TR to OFF position for the last sensor.
Depending on the version of VT460, please choose the below picture to help you accomplish that.
| Case 1 |  | Older VT460 sensors use a pin head jumper. a) For all sensors except the last sensor in the chain put "pinhead jumper" on pins: 2 and 3. TR is OFF. |
b) For the last sensor in the chain put "pinhead jumper" on pins: 1 and 2. TR is ON. | ||
| Case 2 |  | Newer VT460 sensors use a slide switch. a) For all sensors except the last sensor in the chain switch the slide switch UP to turn up. TR is OFF. b) For the last sensor in the chain switch the slide switch to the BOTTOM/DOWN. TR is ON. |
Connecting CAN sensors
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