Communications module that allows RS232-Ethernet-RS232 conversion, with adapter so that the AS / 3 control board can communicate via Ethernet. Supports 10/100 BaseT, Full / Haslf Duplex and Autonegotiation. RS-232 ports with DB9 connector, and Ethernet with RJ45. Protocols supported by hardware: TCP, IP, UDP, ICMP, ARP, DLC, MAC, PING. Protocols supported by software: DHCP, HTTP, SMTP.