OX-PC7111R is a device used to convert CAN bus into optical fiber; Mainly used to extend communication distance, up to a maximum of 40 kilometers; Support ring network and hand in hand connection, automatically recognize connection methods, no need for configuration; Support dip switch configuration with commonly used CAN baud rates ranging from 5K to 1M; Support configuring software to customize CAN baud rate from 5K to 1M; Support commonly used CAN baud rate adaptation; Support interconnection of CAN devices with different baud rates; The power supply does not distinguish between positive and negative connections; Built in 120R resistor, enabled by dip switch;