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DIN 44302 (1966) |
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[[File:RS-232 POTS DTE DCE.svg|thumb|DCE and DTE network. ]]
A '''data circuit-terminating equipment'''<ref name="TIA_1997_232F"/> ('''DCE''') is a device that sits between the [[data terminal equipment]] (DTE) and a [[data transmission circuit]]. It is also called '''data communication(s) equipment'''<ref name="EIA_1969_RS232C"/><ref name="DIN_44302"/> and '''data carrier equipment'''.{{cn|date=May 2013|reason=The definition of DCE I have seen most often over the decades is Data Communication Equipment. I would like to see more *historic* references for the various definitions.}} Usually, the DTE device is the [[Terminal (telecommunication)|terminal]] (or [[computer]]), and the DCE is a [[modem]].
In a [[data]] station, the DCE performs functions such as [[Signalling (telecommunication)|signal]] conversion, [[Channel coding|coding]], and line clocking and may be a part of the DTE or intermediate equipment. Interfacing equipment may be required to couple the DTE into a transmission circuit or [[Communication channel|channel]] and from a transmission circuit or channel into the DTE.
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== References ==
{{reflist|refs=
<ref name="DIN_44302">{{cite book|title=DIN 44302 Datenübertragung - Begriffe |periodical=it - Information Technology|volume=8|number=1-6|year=1966|pages=244-246|doi=10.1524/itit.1966.8.16.244}}</ref>
<ref name="EIA_1969_RS232C">{{cite book|title=EIA standard RS-232-C: Interface between Data Terminal Equipment and Data Communication Equipment Employing Serial Binary Data Interchange |year=1969|publisher=Electronic Industries Association. Engineering Dept|___location=Washington|oclc=38637094}}</ref>
<ref name="TIA_1997_232F">{{cite book|title=TIA-232-F Interface Between Data Terminal Equipment and Data Circuit-Terminating Equipment Employing Serial Binary Data Interchange|year=1997}}</ref>
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