100BaseT, also known as 100Base-T or fast Ethernet, is a physical layer standard that supports data transfer rates up to 100 Mbps (100 megabits per second). 100BASE-T is based on Manchester signal encoding transmitted over Category 3 or better twisted-pair cable. The 100BASE-T standard is defined in the IEEE 802.3u. Like Ethernet, 100BaseT is based on the CSMA/CD LAN access method.
