Quatech MPA-200/300 user manual Connector Notation +RTCLK,-RTCLK, Connector Notation +RRCLK,-RRCLK

Models: RS-422/485 MPA-200/300

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CIRCUIT DB - TRANSMIT ELEMENT TIMING (TxClk - DCE Source)

￿CONNECTOR NOTATION: +RTCLK,-RTCLK

￿DIRECTION: From DCE

This signal, generated by the DCE, provides the DTE with element timing information pertaining to the data transmitted to the DCE.

CIRCUIT DD - RECEIVER ELEMENT TIMING (RxClk - DCE Source)

￿CONNECTOR NOTATION: +RRCLK,-RRCLK

￿DIRECTION: From DCE

This signal, generated by the DCE, provides the DTE with element timing information pertaining to the data transmitted by the DCE.

CIRCUIT CA - REQUEST TO SEND (RTS)

￿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 (CTS)

￿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 CF - CARRIER DETECT (CD)

￿CONNECTOR NOTATION: +CD,-CD

￿DIRECTION: From DCE

This signal indicates to the DTE whether the DCE is conditioned to receive data from the communication channel, but does not indicate the relative quality of the data signals being received.

Quatech Inc., MPA-200/300 Manual

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Quatech MPA-200/300, RS-422/485 user manual Connector Notation +RTCLK,-RTCLK, Connector Notation +RRCLK,-RRCLK