100BASE-T
From Freepedia
100BASE-T is any of several Fast Ethernet 100 Mbit/s (12.5 MB/s including overhead) CSMA/CD standards for twisted pair cables, including: 100BASE-TX (100 Mbit/s over two-pair Cat5 or better cable), 100BASE-T4 (100 Mbit/s over four-pair Cat3 or better cable, defunct), 100BASE-T2 (100 Mbit/s over two-pair Cat3 or better cable, also defunct). The segment length for a 100BASE-T cable is limited to 100 meters (as with 10BASE-T and 1000BASE-T). All are or were standards under IEEE 802.3 (approved 1995).
The vast majority of common implementations or installations of 100BASE-T are done with 100BASE-TX.
References
- This article was originally based on material from the Free On-line Dictionary of Computing, which is licensed under the GFDL.



