10base-T Ethernet

10BASE-T Ethernet became popular due its ease of use, its usage of
unshielded twisted pair (UTP) cabling and its low cost. 10 is for 10
Megabits per second (Mbps) operation, BASE is for baseband operation, and T is for the twisted pair cable used for the network. The Network Interface Card (NIC) performs the functions of a transceiver so that no external transceiver is needed for stations. 10BaseT requires the use of a hub or concentrator because it uses a star topology. The hub serves as a central switching station thus controlling the incoming and outgoing signals. When using star topology if a station goes down it does not affect the rest of the network. Typically a RJ45 connector is connected to UTP cabling and is run straight from the hub to the NIC (10BaseT NIC's have a built-in RJ45 transceiver). Pins 1 and 3 transmit data and pins 3 and 6 receive data (the other pins are not used).

10 BASE-T PARAMETERS AND WIRING RULES

Maximum length per segment is 100 meters or 330 feet.
Maximum of 2 devices per segment; one is the station and the other is the hub.
Maximum of 2 Inter-Repeater Links between devices without using bridge or switch (A hub is a repeater ).
Star topology.
Certain hubs come with a standard BNC and/or AUI connection.
Hubs can connect to fiber optic or coax networks.
Unsheilded twisted pair no less than Category 2 is required for 10BaseT operation, however, Category 3 or higher is preferred.
UTP cabling is not recommended for areas with electromagnetic
or radio frequency interference (EMI/RFI).
NIC's come with built-in transceivers so connections are made
directly to the NIC.
NIC's with standard AUI ports must use a twisted pair transceiver.

1. Transceiver
2. Transceiver Cable
3. Cat 5 Wallplate Assembly
4. Cat 5 UTP Cable
5. 10 Base-T Hub
6. Cat 5 Patch Panel
7. Cat 5 Color Coded Patch Cables
8. 10 Base-T RJ45 Network Card
9. 50 Ohm Terminator
10. Thick Ethernet Trunk Cable
11. Equipment Rack

Computer Solutions of Tennessee
Oak Ridge - Clinton, Tennessee
(865) 483-4373