![]() ![]() A telephone-system-standard RJ45 plug has a key which excludes insertion in an un-keyed 8P8C socket. Spring tension in the jack's contacts ensures a good interface with the plug and allows for slight travel during insertion and removal.Īlthough commonly referred to as an RJ45 in the context of Ethernet and category 5 cables, it is incorrect to refer to a generic 8P8C connector as an RJ45. When an 8P8C plug is mated with an 8P8C jack, the contacts meet and create an electrical connection. Inside the jack, the contacts are suspended diagonally toward the insertion interface. On the plug, these conductors are flat contacts positioned parallel with the connector body. These connectors are commonly used for Ethernet over twisted pair, registered jacks and other telephone applications, RS-232 serial using the EIA/TIA-561 and Yost standards, and other applications involving unshielded twisted pair, shielded twisted pair, and multi-conductor flat cable.Īn RJ45 8P8C modular connection has two paired components: the male plug and the female jack, each with eight equally-spaced conductors. The 8 position 8 contact (8P8C) connector is a modular connector commonly used to terminate twisted pair and multi-conductor flat cable. TIA/EIA-568 is a standard for data circuits wired on modular connectors. These latter aspects are covered by ISO standard 8877. ![]() The registered jack specifications define the wiring patterns of the jacks, not the physical dimensions or geometry of the connectors of either gender. Modular connectors were originally used in the Registration Interface system, mandated by FCC in 1976 in which they became known as Registered Jacks. Probably the best known applications of modular connectors is Ethernet. 8P8C RJ45) is an electrical connector that was originally designed for use in telephone wiring, but has since been used for many other purposes. This is the 8 pin RJ45 (8P8C) female connectorĪ modular connector (i.e. ![]()
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