Cat5e cable: Enhanced version of Cat5
Cat 5e cable or Category 5e cable is an enhanced version of the earlier generation Cat 5 that adds specifications for far end crosstalk. The ‘e’ in Cat5e indicates enhancement. In 2001, it was defined as the TIA/EIA-568-B standard, which now does not recognize the original Cat 5 specification. In spite of more stringent performance specifications, Cat 5e cable remains limited to up to 100m in length for Ethernet networks. Cat5e cable is also suitable for use with 1000BASE-T although it was earlier designed to be used with Cat5 cable. One can find Cat 5e cable performance characteristics and test methods definitions in TIA/EIA-568-B.2-2001.
Like Cat5, Cat5e also has 100 ohm impedance and electrical characteristics that can support transmissions up to 100 MHz. Performance-wise, there are differences between Cat5 and Cat5e in almost every aspect such as frequency, resistance, capacitance, attenuation, and NEXT. The components of Cat5e were designed with high-speed gigabit Ethernet in mind. However, these components cannot perform satisfactorily in high-data transfer cases. Cat5e cables work with ATM and gigabit speed products. It is wiser to have Cat5e rather than Cat5 if you are using a 100Mbps switch.
Cat5e is formally known as ANSI/TIA/EIA 568A-5. Cat5e is completely backward compatible with current Cat5 equipment. With its enhanced electrical performance, Cat5e cable can make sure that it will be able to support applications that need extra bandwidth, such as gigabit Ethernet or analog video. Cat5e cable is a welcome enhancement that can be of great help for users.
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