The Pro Series is a serial device server product line that connects RS-232/422/485 serial devices to the industry standard 10/100Base-T Ethernet network. The PS110, PS410, and PS810 are in 1, 4, and 8 port device server models respectively in the Pro Series product line. These device servers incorporate advanced features such as such as flexible operation mode, TCP/UDP multicasting, telnet COM port control protocol support (RFC2217 compliant), SSL encryption, and port event handling. Features Connects legacy serial devices to 10/100Base-T Ethernet network. Supports surge protector for RS232/422/485 interface, up to 230Kbps speed. Flexible TCP/UDP host mode support: Multiple host connection/data transfer. Powerful security support, SSL (Secure Socket Layer), RC4. System logging & port logging. Supports Dynamic DNS protocol for DSL connection to broadband Internet. Configuration via Web, Telnet/SSH, Windows Utility or console. Supports RFC 2217, Telnet COM Port Control Protocol.