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Any of several Fast Ethernet 100 MBps CSMA/CD standards for twisted pair cables, including: 100BaseTx (100 Mbps over two-pair Cat5 or better cable), 100BaseT4 (100 Mbps over four-pair Cat3 or better cable), 100BaseT2 (in committee; 100 Mbps over two-pair Cat3 or better cable). All are standards (or planned standards) under IEEE 802.3.


An Ethernet standard that transmits at 100 Mbps. Introduced in 1995 and officially the IEEE 802.3u standard, it is a 100 Mbps version of 10Base-T (10 Mbps Ethernet). Like 10Base-T, 100Base-T is a shared media LAN when used with a hub (all nodes share the 100 Mbps) and 100 Mbps between each pair of nodes when used with a switch. All modern Ethernet devices are at least 10/100, supporting both 100Base-T and 10Base-T (see 10/100 adapter).

100Base-T, 100Base-T4 and 100Base-TX
100Base-T uses two pairs of wires in Category 5 UTP cable, while 100Base-TX requires two pairs in Category 6 cable. 100Base-T4 uses all four wire pairs in older Category 3 cables. See 10Base-T and 100Base-FX.

"Twisted Pair" Ethernet
All stations in a 100Base-T Ethernet are wired to a central hub or switch using twisted pair wires and RJ-45 connectors.

Fast Ethernet
The moniker "Fast Ethernet" has been used for 100Base-T since its inception. In 2013, this was a current product in Staples.
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Network line increased from lOBaseT to 100BaseT for faster internal file transfer.
You wouldn't manage your 10BaseT network separately from your 100BaseT network, so why should this be any different for wireless technologies?
One example is Computer Associates International's use of VI in its ARCserve 2000 Workgroup/Advanced Edition Backup Agent for Microsoft SQL Server, doubling performance over its 100BaseT Ethernet offering.
With the GPIBENET/100 controller, users can easily access remote test equipment from anywhere in the world via TCP/IP protocols on 100BaseT and 100BaseT networks.
Vinca claims 100% performance increases using GigaNet's GNN1000 cLAN Host Adapter using standard drivers, compared with 100BaseT Ethernet.
A small box enclosure contains a microSPARCII processor, memory (from 8MB to 64MB), Flash RAM (up to 8MB) and networking interfaces (10BaseT or 100BaseT).
* The ability to use either the 100BaseT protocol over 1 quadrax cable (100 Mbit/s), or Ethernet 1000 Base'IX, which allows transmission (up to 1 Gbit/s) over 2 cables.
"It has the ability to virtually concatenate (VC) two STS-1 payloads into a single payload that can carry a 100BaseT Ethernet (fast Ethernet) connection with a DS3 available for delivery or to be used with an M13 for T1 fan out.
The Vericept Solutions for Education is a Linux-based hardware device that runs on any 10BaseT or 100BaseT network.
The maximum data transfer rate using 100BaseT is about l00Mbit/sec.
The GPIB-ENET/100 controller enables users to access remote test equipment from anywhere via TCP/IP protocols on 10BaseT and 100BaseT networks while the PCI-8212 interface product offers a single PCI board combining National's own GPIB controller chip and an Ethernet controller chip developed by Intel.
"We upgraded the DAQ host to a PXI computer, and we put in a 100baseT peer-to-peer wireless RS-485 LAN," says Butler.