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,→UART2/CAN - J5
J5 is a standard DB9 '''male''' connector for the configurable UART/CAN port. The board provides some '''hardware''' mount options for the selection of the UART mode (RS232/RS422/RS485 with auto-direction) or the CAN mode. The board default configuration provides the CAN interface on this port, while the RS232/RS422/RS485 interface is provided as an option to customers who choose the alternative configuration.
Please note that this port can be used to connect a [http://www.rovingnetworks.com/products/RN240 Bluetooth dongle serial adapter] powered by the 5V_BT signal.