Today, almost all electronic equipment using 8P8C connectors will show documentation for RJ45 connectors, which is technically incorrect. Therefore, what most of the industry refers to as RJ45 connectors are in fact 8P8C modular connectors. However, because the connectors resemble each other so closely in appearance, the groups and individuals who transitioned from telephone networking to computer networking started to mistakenly call the unkeyed 8P8C connectors вЂњRJ45sвЂќ and the terminology quickly caught on. The connectors are not entirely compatible with one another because of the keying used in RJ45 8P8C connectors can plug into RJ45 receptacles, but the inverse is not true. The differences between 8P8C connectors and RJ45 connectors are shown in the following diagram: There are a variety of 8P8C connectors out there, with the modern RJ45 Ethernet connector being the most prevalent.ДЄs a result of the close similarities, вЂњRJ45вЂќ became the designated informal misnomer for any eight-pinned jack (8P8C modular connector) used in computer networking (Ethernet). Individual wires are then inserted into these positions.

In 8P8C connectors, each plug has eight positions that are spaced approximately 1 mm apart. 8P8C ConfusionДЁP8C refers to the array of pins, hence the name Eight Position, Eight Contact. With the advent of computer networking, a new but very similar connector was developed to carry out data transfer: 8P8C. The connectors of the RJ platform were developed as much smaller and cheaper replacements to the older telephone installation methods of hardwired cords or bulky plugs. RJ stands for вЂњregistered jack,вЂќ and the true RJ45 connector was originally developed as part of the standardized telecommunication network interface for the purpose of connecting telephone networks. LetвЂ™s start with RJ45, perhaps the term most widely used to refer to Ethernet cables today.

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