SmartEdge Industrial IoT Gateway
User Guide
http://www.element14.com/gateway
Page 17
ONBOARD RS232/485
You can use the onboard RS232/485 interface as a serial console, Modbus RTU interface, or other serial usages.
The RS-232/RS-485 port is configured by default for 2-wire RS-485 operation with termination enabled. On board
jumpers can reconfigure the port for full duplex or RS-232 signaling. See section 3.3 for jumper configuration and
connections.
The port is /dev/ttySC0. Refer to the schematics in the appendix for detailed connections.
CANBUS
The internal CANbus is available but not fully enabled by default in the image. It can be enabled by removing the
comments dealing with the can0 section in /etc/network/interfaces. Be sure to set the proper bitrate for your bus.
Utilities cansend and candump are included and the can0 device can be used by the network stacks.
A CAN termination jumper is enabled by default. Refer to section 3.3 for more information and refer to the schematics
in the Appendix.
INTERNAL MPCIE SLOT
This full size mPCIe slot is plug-n-play with USB based cards. PCIe cards are not supported. As with any USB device,
additional drivers may need to be installed.
INTERNAL RASPBERRY PI HAT EXPANSION SLOT
A standard Raspberry Pi HAT expansion slot of available, and can support most off-the-shelf HAT cards. The I2C1 bus is
enabled for onboard devices, so the HAT card(s) must not conflict with that usage.
