The CAN/Ethernet Isolators and Routers forward messages between CAN and Ethernet networks. They can be configured using the CAN interface or through a web browser via a built-in web server running on the device. The CAN ports have configurable power outputs that have a self-resettable fuse. All CAN interfaces have built-in 120 Ω termination resistors that can be enabled in the configuration. By default, all termination resistors are enabled, and no external resistors need to be used.