1.Hardware Dimensions of Modbus Gateway/Modbus RTU to TCP USR-M511
2.LED Indicator of Modbus Gateway/Modbus RTU to TCP USR-M511
3. DB9 Pin definition of Modbus Gateway/Modbus RTU to TCP USR-M511
4.DB9 Pinboard of Modbus Gateway/Modbus RTU to TCP USR-M511
We provide DB9 pinboard for user to use terminal connection