Data Terminal Ready
Also found in: Medical, Acronyms.
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)