This is a serial RS232, RS485 or RS422 to Ethernet server, used for data transparent transmission. USR-TCP232-306 is a low-cost serial device server, whose function is to realize bidirectional transparent transmission between RS232, RS485 or RS422 and Ethernet. USR-TCP232-306 is internally integrated with TCP/IP protocol. User can apply it to device networking communication. Ethernet 1 Port Speed Rate 10/100 Mbps, MDI/MDIX Buffer Receive: 4K byte / Send: 6K byte Protection 2 KV Electromagnetic isolation for Ethernet port Network Protocol IP/TCP/UDP/DHCP/DNS/HTTPD client Power Supply DC 5-36 V (ESD/ Surge prevention) Work Temp -25~75C Software Setup/Virtual COM Serial Port RS-232 / RS-485 / RS422 Port Type RS-232: DB9 male port; RS-485: A+/B; RS422: TX+/TX-/RX+/RX- Baud Rate 600 bps ~230.4K bps Data Bit 5/6/7/8 Stop Bit 1/2 Buffer Receive: 2K bytes;  Flow Control Not this function Protect   Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store