a guide to ethernet switch and phy chips pdf

RJ45 devices, like all modular connectors, contain metal contacts separated by insulating plastic channels. The RJ system covers the physical connector, wiring patterns, and signal specifics. This was done to ensure compatibility between phone company hardware and consumer equipment. The various connectors developed using this system were categorized by the FCC in 1976 into the Registered Jack (RJ) system, giving rise to the RJ label. What is an RJ45 Connector?Īn RJ45 connector is a commonly used modular interconnection device matched with a cable to provide data communication service to various electronic devices and systems. In fact, RJ45 connectors are commonly referred to as Ethernet Connectors.

The line has expanded over the years to include data communication mainstays, like the RJ45, which was developed for computer networking. This new connector system offered simple, quick, and convenient setup that could be customized on-site by a technician or installed by the user in the home. One of the most widely used types in the modular family of devices is the RJ45 connector.Īs we have learned in another blog topic, the modular connector system was developed by AT&T in the 1960’s and 1970’s to take the place of bulky phone connectors and their labor-intensive installation.

The use of modular electronic connectors has been one factor in the explosion of communication and data services around the world.

A guide to ethernet switch and phy chips pdf