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CAN Interface

The CAN Interface uses an TJA1040 CAN driver at IC12 on the MCB1800 board.

MCB1800 Board CAN Interface

The CAN DB9 connectors are wired so that Pin 2 provides the CANL signal and Pin 7 provides the CANH signal. These pins are connected to a TJA1040 CAN driver.

Jumper J19 and J20 incorporates a 120 ohm termination resistor between the CANL and CANH signals.

MCB1800 CAN DB9 Connector

Note

  • CAN termination resistors make it easy to connect the MCB1800 board to your CAN network but they are not always required. When connecting the MCB1800 Board to a CAN network, you may need to remove jumpers 19 and J20.
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