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A look at the Network Cable standards
A look at the Network Cable standards

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!!! Overview
Before we get started with actually building our cables, let's take a few minutes to explore the two different wiring standards for [network] cabling.
As you may know, every company that develops a product for the computer industry tries to establish its product as the standard all others should follow. However, that doesn't always work out in the best interest of the consumer. In many cases, an independent organization must step in and guide the industry to a standard.
In the case of the wiring standard, the [Electronic Industries Alliance] ([EIA])|http://www.eia.org/] and the [Telecommunications Industry Association] ([TIA])|http://www.tiaonline.org/] got together in [1991|Year 1991] and set a standard for network cable wiring called the [EIA]/[TIA]-568 Standard for Commercial Building Telecommunications Wiring. The EIA/TIA-568 standard describes the performance and installation specifications for network cabling, covering both the cable itself and how it’s connected to modular plugs and jacks.
As you may have guessed, the EIA/TIA-568 [standard]'s cable performance specifications for each of the Category 1,2,3,4,5,6 etc. cabling. Category 5 is the lowest we would now recommended for use on any current network wiring plans (The EIA/TIA-568 standard also covers Categories 1 through 4 cabling). Of course, the main objective of the EIA/TIA-568 standard is to give all manufacturers the ability to build equipment and components that will interoperate in a standardized cabling environment.
The EIA/TIA-568 [standard] has two schemes for how the wire is connected to modular plugs and jacks, the T568A and [T568B]. These [standards] are essentially the color code patterns that you use for connecting the colored wires in the cable with the connectors in the RJ-45 modular plugs and jacks.
The US Government uses the T568A wiring standard for all network wiring done under [United States federal government] contracts. In addition because it provides backward compatibility for both one pair and two pair Universal Service Order codes ([AT&T]) [USOC] wiring schemes, the T568A wiring pattern is recognized as the preferred wiring pattern for this [standard].
Most other network configurations use the [T568B] wiring standard. This [standard] is identical to the [AT&T] 258A, which was the preferred and most widely used wiring scheme before the adoption of the EIA/TIA [standards]. However, this wiring standard only provides backward compatibility with one-pair [USOC] wiring schemes.
!! More Information
There might be more information for this subject on one of the following:
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This page (revision-1) was last changed on 29-Nov-2024 16:16 by UnknownAuthorTop