Brainboxes ES Series Ethernet to Serial Adaptors - Brainboxes ES-522, Ethernet to serial device with 2 port software selectable as RS232, RS422 / 485 full duplex or RS422 half duplex. The ES-522 has removable screw terminals blocks for easy wiring, a slim 'end on' case and integral DIN rail mount. The industrial Ethernet to serial has an operating temperature range of -40 to +80 degrees Celsius and with +5V DC to +30V DC dual input reverse polarity protected power supply making it perfect for industrial applications.Data transfer rates up to 1,000,000 baud, coupled with 1Mbit/s line drivers deliver uncompromising performance. The industrial ES-522 provides simple instant networked serial ports in demanding environments. Serial port tunnelling (peer to peer) allows serial cable replacement over any distance, no software required. Brainboxes ES-522 Industrial Ethernet to Serial 2xRS232/422/485