Stride Modbus gateways convert bidirectionally between Modbus RTU or Modbus ASCII protocols and Modbus TCP. These compact gateways feature one or two 10/100 Mbps Ethernet ports and one, two or four industrial serial ports. The Ethernet ports each support as many as 16 TCP devices, client or server. Serial ports each support as many as 128 slave devices or one master device and provide a high serial isolation voltage of 2 kV. There is a DIP switch selectable termination resistor for the RS-485 mode. The gateways feature metal housings and have a temperature range of -40 to 75 °C.