Miyerkules, Setyembre 21, 2011

Ethernet Standards

There are two types of Ethernet Standards. One is the Cabled Ethernet Standard, under this are the 
10BASE-T, Fast Ethernet, 100BASE-TX, 1000BASE-T.

10BASE-T:
 The 10Base-T standard (also called Twisted Pair Ethernet) uses a twisted-pair cable with maximum lengths of 100 meters. The cable is thinner and more flexible than the coaxial cable used for the 10Base-2 or 10Base-5 standards.

Cables in the 10Base-T system connect with RJ-45 connectors. A star topology is common with 12 or more computers connected directly to a hub or concentrator.

The 10Base-T system operates at 10 Mbps and uses baseband transmission methods.

One of several adaptations of the Ethernet (IEEE 802.3) standard for Local Area Networks (LANs). The 10Base-T standard (also called Twisted Pair Ethernet) uses a twisted-pair cable with maximum lengths of 100 meters. The cable is thinner and more flexible than the coaxial cable used for the 10Base-2 or 10Base-5 standards.

Cables in the 10Base-T system connect with RJ-45 connectors. A star topology is common with 12 or more computers connected directly to a hub or concentrator.
The 10Base-T system operates at 10 Mbps and uses baseband transmission methods.






Fast Ethernet: 

In computer networking, Fast Ethernet is a collective term for a number of Ethernet standards that carry traffic at the nominal rate of 100 Mbit/s, against the original Ethernet speed of 10 Mbit/s. Of the fast Ethernet standards 100BASE-TX is by far the most common and is supported by the vast majority of Ethernet hardware currently produced. Fast Ethernet was introduced in 1995 and remained the fastest version of Ethernet for three years before being superseded by gigabit Ethernet.




100BASE-TX:  

100BASE-TX is much faster than 10BASE-T and has a theoretical bandwidth of 100 Mbps.

At 100 Mbps, transfer rates of 100BASE-TX are ten times that of 10BASE-T.

100BASE-X uses twisted-pair cabling, which is inexpensive and easy to install and the maximum length for a 100BASE-TX segment is only 100 m (328 ft), cables are susceptible to EMI.