Support DHCP, automatically obtain an IP address and query IP address through serial setting protocol Support DNS function Set parameters through webpage Upgrade firmware via network Auto-MDI/MDIX, RJ45 port with 10/100Mbps Serial port baud rate from 600 bps to 230.4 Kbps, Check bit of None, Odd, Even, Mark and Space Work mode: TCP Server, TCP Client, UDP Client, UDP Server, HTTPD Client Support virtual serial port and provide corresponding software USR-VCOM Heartbeat package mechanism to ensure connection is reliable, put an end to dead link User-defined registration package mechanism, check connection status and use as custom packet header Under TCP Server mode, Client number ranges from 1 to 16; default number is 4 Across the gateway, switches, routers Can work in LAN, also can work in the Internet (external network) Colour:As Shown Material:plastic Package Contents: 3 x USR-TCP232-304 serial port RS485 to Ethernet converter (no power adapter)