Connect the SMART2 to Data Communication Equipment

The SMART2 can communicate with other devices in the system, such as a computer's serial or Bluetooth port. The SMART2 also has a CAN bus port for communication with other CAN bus compatible devices.

Serial Ports

The SMART2 has three serial ports: COM1, COM2 and COM3. These ports are available on the 14-pin Tyco Ampseal connector. Refer to SMART2 Connector Overview for the pin out of this connector.

SMART2 Serial Port Protocol

Port

RS‑232

COM1

Yes

COM2

Yes

COM3

Yes

Use the SERIALCONFIG command to configure the receiver’s asynchronous serial port communications drivers.

Port settings (bit rate and parity, for example) are software configurable. See Communications with the Receiver for information about configuring the serial ports. Also see SMART2 Data Communication Specifications for the serial port specifications.

To connect to a serial port:

  1. Connect the SMART2 Interface cable (PN: 01019944), or a custom made cable, to the 14-pin Tyco Ampseal connector.

    For information about the SMART2 interface cable refer to Connect I/O Signals to a SMART2.

  2. Connect the appropriate DB9 connector (COM1, COM2 or COM3) to the serial port on the computer or other data communication device.

CAN Bus Port

The SMART2 has a CAN Bus port available on the 14-Pin interface connector.

To connect to the CAN Bus port:

  1. Connect the SMART2 optional accessory cable or a custom made cable, to the main 14-Pin interface connector.

    For information about the SMART2 interface cable, see SMART Antenna Interface Cable (Optional Accessory). This section also has the connector pin out and connector recommendations for making a custom cable.

  2. Connect the CAN to the CAN Bus (J5) of the SMART2 interface cable, see SMART Antenna Interface Cable (Optional Accessory).

The SMART2 CAN bus port is unterminated. If the SMART2 is at the end of the bus, then the connecting cable must have 120 ohms integrated into the cable between CAN1+ and CAN1- in close proximity to the main 14-Pin interface connector.

Bluetooth

Bluetooth is a wireless radio communication standard designed for use over short ranges (within 10 m). SMART2 receivers equipped with the Bluetooth hardware option support the Bluetooth Classic SPP to provide a Bluetooth virtual serial port: COM6.