CAT5e Economiser/Doubler

CAT5e, also known as Enhanced Category 5, is a UTP cable standard ratified in 1999. It’s an incremental improvement over Category 5 (CAT5) and is designed to enable cabling to support full-duplex Fast Ethernet and Gigabit Ethernet. The main differences between CAT5 and CAT5e are in the specifications. The performance requirements have been raised slightly in CAT5e standard.

CAT5e has stricter specifications for Power-Sum Equal-Level Far-End Crosstalk (PS-ELFEXT), Near-End Crosstalk (NEXT), Attenuation and Return-Loss (RL) than those for CAT5. Like CAT5, CAT5e is a 100-MHz standard, but it has the capacity to handle bandwidth superior to that of CAT5. With these improvements, you can expect problem-free, full-duplex, 4-pair Ethernet transmissions over your CAT5e UTP.