EIA (Electronic Industry Alliance)

EIA (Electronic Industry Alliance) is an organization whose members are factory electronics factory in USA.Pada telecommunications, EIA established a Technical Committee TR-30 (1962) for the development of standards interface enhancements of the data terminal equipment (DTE) and data sepertiport computer communications equipment (DCE), such as a modem. Organizations that create standards and supply the components of electronic devices, as well as mechanical, connector, cable, component arrays and assembly, as well as material and supporting devices.
And the difference between the EIA and TIA1. EIA / TIA-568A and EIA / TIA-568B is an international standard cabling with RJ-45 jack and the cable UTP / STP category 3, 5, and 6 (4 twisted pair) used in ethernet technology and PABX. Two standard (A & B) is used for the crossover cable. A tip of the standards, and the other end to the standard B.
 2. The order with a standard EIA / TIA-568A (green white, green, white, orange, blue, white, blue, orange, white, brown, brown) and EIA / TIA-568B (white orange, orange, white, green, blue, white, blue , green, white, brown, brown) used for interconnection between hardware and network. The use of another arrangement is allowed, but must meet the criteria in no. 3 and so on. 3. Pin 1 & 2, the ethernet is used as Tx. To avoid interference, there must be a 1 pair (usually white orange - orange or green white - green) to meet the electrical needs of the high-speed protocol-LAN.
 4. Pin 3 and 6, the ethernet is used as the Rx. To avoid interference, there must be a 1 pair (usually white orange - orange or green white - green) to meet the electrical needs of the high-speed protocol-LAN.
 5. Pin 4 & 5 (in wikipedia referred to as "the central two pins") are used to carry telephone signals (internet not only ethernet) or voice signals in telecommunications standards. Even RJ-11 can be inserted into the RJ-45 port. For this purpose, it should be one pair in the middle (usually blue - blue and white)
 6. Pin 7 & 8, typically used for technology Power over Ethernet (PoE), which is to increase the power of the device VOIP, wireless LAN access points, webcams, Ethernet hubs, computers, and other devices that do not allow to provide a separate power supply , In this case of course, pin 7 and 8 must be 1 pair (usually white brown - brown). So in conclusion, the arrangement of another color is allowed, as long as each pair remain differentiated placement by function to support the use of hardware other than a PC in the network.