ES-257 Ethernet to Serial RS232. Ethernet to Serial adapter provides access to two RS232 serial ports. Data transfer rates up to 1,000,000 baud, coupled with 1Mbit/s line drivers, deliver uncompromising performance. The adapter is powerful in operation and simple to use with a user friendly interface. 2 port RS232 Data rate from 110 to 1,000,000 baud Serial port tunneling allows serial cable replacement over any distance- no software required Power supply included (power input 5-30V dc) LED status indication IP30 rated enclosure