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Data Terminal Ready

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Data Terminal Ready

(communications)
(DTR) The wire in a full RS-232 connection that tells the Data Communication Equipment (DCE, typically a modem) that the Data Terminal Equipment (DTE, typically a computer or terminal) is ready to transmit and receive data.
This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)

DTR

(Data Terminal Ready) An RS-232 signal sent from the computer or terminal to the modem indicating that it is able to accept data. Contrast with DSR.
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