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Definition: DTE & DCE


DTE is acronym for Data Terminal Equipment.

Examples of DTE is computers, printers & terminals.


DCE is acronym for Data Communication Equipment.

Examples of DCE is modems.


Wiring a cable for DTE to DCE communication is easy. All wires goes straight from pin x to pin x.

But wiring a cable for DTE to DTE (nullmodem) or DCE to DCE requires that some wires are crossed. A signal should be wire from pin x to the opposite signal at the other end. With opposite signals I mean for example Transmit & Send.

Contributor: Joakim Ögren
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Please send any comments to Joakim Ögren.