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DescriptionOM-ES-511 (1 serial port) and OM-ES-522 (2 serial ports) are software selectable as RS232, RS422/485 full duplex or RS422 half duplex and have removable screw terminals blocks for easy wiring, a slim ‘end on’ case and integral DIN rail mount. OM-ES-511 and OM-ES-522 have an operating temperature range of -30 to 80°C (-22 to 176°F) and with 5 to 30 Vdc dual input reverse polarity protected power supply making them perfect for industrial applications. Data transfer rates up to 1,000,000 baud, coupled with 1Mbit/s line drivers deliver uncompromising performance. OM-ES-511 and OM-ES-522 provide simple instant networked serial ports in demanding environments. Serial Port Tunneling allows serial cable replacement over any distance, no software required. Suitable to be wired into existing power and network infrastructure or can be used with a separate power supply.