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19 DTE Interface Signals

CIRCUIT AB - SIGNAL GROUND

 CONNECTOR NOTATION: DGND

 DIRECTION: Not applicable

This conductor directly connects the DTE circuit ground to the DCE circuit

ground.

CIRCUIT BA - TRANSMITTED DATA

 CONNECTOR NOTATION: TXD

 DIRECTION: To DCE

This signal transfers the data generated by the DTE through the communication

channel to one or more remote DCE data stations.

CIRCUIT BB - RECEIVED DATA

 CONNECTOR NOTATION: RXD

 DIRECTION: From DCE

This signal transfers the data generated by the DCE, in response to data channel

line signals received from a remote DTE data station, to the DTE.

CIRCUIT CA - REQUEST TO SEND

 CONNECTOR NOTATION: RTS

 DIRECTION: To DCE

This signal controls the data channel transmit function of the local DCE and, on a

half-duplex channel, the direction of the data transmission of the local DCE.

CIRCUIT CB - CLEAR TO SEND

 CONNECTOR NOTATION: CTS

 DIRECTION: From DCE

This signal indicates to the DTE whether the DCE is conditioned to transmit data

on the communication channel.

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Quatech RS-232 Bedienungsanleitung Seite 50