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Analysis of the interface function of the RJ45 connector

October 28, 2019

The RJ45 connector interface is a commonly used Ethernet interface that supports 10 megabits and 100 megabits of adaptive network connection speed. There are two types of common RJ45 connector interfaces: DTE types for Ethernet NICs, router Ethernet interfaces, etc. There are DCE types for switches and the like. DTE can be called "data terminal equipment", DCE we can call it "data communication equipment". RJ45 connectors In a sense, DTE devices are called "active communication devices" and DCE devices are called "passive communication devices." When two devices of the same type use the RJ45 connector interface to communicate, you must use a crossover cable