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Four Port RS-232 (UART) Daughtercard


Model No.: LR-232-4
RoHS Compliant Product

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The model LR-232-4 is a four channel, RS-232 UART serial port daughtercard for the C5000/C6000 TI and Spectrum Digital development systems. Two ports are configured as DTE, and have male DB-9 connectors, while the other two ports are configured as DCE, and have female DB-9 connectors. The daughtercard supports data rates of up to 921.6kbps, and is compatible with several different development systems. Please see our compatibility chart for details.
The daughtercard ships with a DB9-DB9 serial cable, and several complete CCS projects demonstrating the board's capabilities



  • DSK to PC data communication
  • DSK to DSK data communication
  • Allows real-time visiblity into the target DSP


What's in the Box
  • Four channel, non-stackable serial port daughtercard
  • DB-9 Cable
  • CD containing sample code and documentation

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Ordering Information:

Model Number Description

This board includes four independent RS-232 serial ports. This version of the board is not stackable. The stackable version is our model LR-232-2-S. Maximum data rate (baud rate) for each channel is 921,600 bps. This version of the product  includes everything shown in What's in the Box above.

Typical Application

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The image above shows a typical use of the LR-232-x-x series of serial port daughtercards. In the center, the 4 port version of the daughtercard is shown plugged into the 6713 DSK. One port of this board is connected to a laptop, and can be used for control and monitor of the 6713's program. A second port is connected to another 2 port serial daughtercard (right), and can be used for DSK-to-DSK data communications.


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