CYT-133SC is a device server with 3 digital inputs and 3 digital outputs and provides an industrial single port Ethernet RS232 or RS485 serial device server that can make your industrial serial devices to be IP / Ethernet network enabled. The digital inputs (3) and digital outputs (3) can be used to read or write relays, alarms, and lights. Configuration and firmware upgrade are available using the network. PPPoE & DDNS protocols make the user connect to Internet without static IP. The CYT-133SC is easy to configure using a simple Web page configuration page. The terminal blocks on the CYT-133SC is used for digital I/O and the RS485 operation. The RS232 connection is a standard DB9 male. The power connection (9-30VDC) can be made using the built in terminal block or via a Power Supply (Sold Separately).