KEYDEX 200ft UTP Cat5e Network Lan Ethernet Cable - Red Review
The specification for Category 5e cable was defined in ANSI/TIA/EIA-568-A, with clarification in TSB-95. These documents specified performance characteristics and test requirements for frequencies of up to 100 MHz. Cable types, connector types and cabling topologies are defined by TIA/EIA-568-B. The cable is terminated in either the T568A scheme or the T568B scheme. Canada and Australia use the T568A standard, and the United States commonly uses T568B scheme. The two schemes work equally well and may be mixed in an installation so long as the same scheme is used on both ends of each cable. Nearly always, 8P8C modular connectors, often incorrectly referred to as "RJ-45", are used for connecting category 5e cable. Each of the four pairs in a Cat 5e cable has differing precise number of twists per meter based on prime numbers to minimize crosstalk between the pairs. On average there are 6 twists per 5 centimeters. The pairs are made from 24 gauge (AWG) copper wires within the cables. Although, cable assemblies containing 4 pairs are common, Category 5e is not limited to 4 pairs. Backbone applications involve using up to 100 pairs. This use of balanced lines helps preserve a high signal-to-noise ratio despite interference from both external sources and crosstalk from other pairs. Category 5e cabling is most commonly used for faster Ethernet networks, such as 100BASE-TX and 1000BASE-T.
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