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3. "TR" - This switch should be turned to "ON" (down) position if the sensor is the last sensor one in the CAN chain. Otherwise, the switch should be turned to "OFF" (up) position.
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4. "CAN" - two equivalent digital connectors RJ11 6P4C for the connection to the master module, CAN sensors, or CAN extensions on a CAN bus, with auto-sensing.
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