The Comnet CNFE3DOE2/M is a versatile 2-channel serial-over-Ethernet terminal server supporting RS-232, RS-422, and RS-485 protocols. It is equipped with two RJ-45 copper ports and one 100FX SFP port for optical connectivity (SFP sold separately). Designed for industrial applications, it provides reliable serial data transmission over Ethernet networks and is powered by an external PSU (purchased separately).