Rated Voltage:DC9V-36V, dual Power inputs; 1 RS485 serial port, RS232 is optional; 1LAN &1WAN RJ45 Port supports Router function; Max. supports 100 Slave Devices for 1000 data Point. Converting Modbus RTU/Modbus TCP to MQTT over 4G/Ethernet Network; Support transparent data transfer; Supports TSL, SSL; Compatiable AWS, Huawei, Ali,KPIIOT and other Cloud Platforms. Converting PLC Protocols to MQTT Protocols over 4G or Ethernet Networks.