ETH2MOD is a MODBUS serial port server via Ethernet network that can be extended with several serial ports. The extension consists in that the device supports USB to serial converters based on FTDI circuit (see www.ftdichip.com), then up to 16 additional ports can be added and these ports have the same opportunities for management and configuration as they built. Setup can via a USB key that moves between two paragraphs. ETH2MOD, downloaded or saved as a backup. With very wide temperature range.