20 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, -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, -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, -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, -CTS
DIRECTION: From DCE
This signal indicates to the DTE whether the DCE is conditioned to transmit data on the
communication channel.
CIRCUIT CC
- DCE Ready (Data Set READY)
CONNECTOR NOTATION: +DSR, -DSR
DIRECTION: From DCE
This signal indicates the status of the local DCE by reporting to the DTE device that a
communication channel has been established.
CIRCUIT CD
- DTE READY (Data Terminal Ready)
CONNECTOR NOTATION: +DTR, -DTR
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Содержание MPAP-200
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