TMT729-M181 is a 1 Gb/s Ethernet copper media converter manufactured by Teledyne. It converts copper to optical, allowing for remote connections of up to 4 miles. It supports a variety of protocols including 10/100/1000TX Base-T, 100FX, and 1000BTX Ethernet. It is designed for use in a variety of networks, including Ethernet, Fast Ethernet, Gigabit Ethernet and STM-1/OC3. It supports manual, DIP switch and auto-negotiating setup options, and is compliant with IEEE 802.3 standards for Ethernet. It is backed by a 3-year limited manufacturer warranty.