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DTE (Data Terminal Equipment)

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DTEs are the source or destination of data in a communication connection. DTEs are connected to DCE (data circuit-terminating equipment), which in turn is connected to the communication channel. Dumb terminals were originally classified as DTEs, but computers also fall into this category. A DCE is a modem if the circuit is an analog voice line, or a DSU/CSU if the line is digital.

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