ADAM-4571L RS232 Output, Signal Conditioner. Advantech 4571L RS-232 serial device server provides a robust way to network enable equipment in an industrial automation environment. It offers the advantages of remote management and data accessibility to RS-232 devices. The transmission speed of the ADAM-4571L is up to 921.6 Kbps, meeting the demands for high-speed data exchanges. By encapsulating serial data and transporting it over Ethernet, the ADAM-4571L allows virtual serial links over TCP/IP networks.