The 91PE Series from American Fibertek provides one simultaneous video channel with 10/100Base-Tx Ethernet on a single fiber. A built-in Ethernet switch provides two RJ45 local network connections and an internal port to the other side of the link. It can be configured with two sub carrier channels which can be 24 bit digital audio, multi-protocol configurable data, dual RS232 channels or dual relay contact closure channels.