Microhard Systems pMDDL2350 - Appendix D: Serial Port Extension; FTDI USB to UART Serial Extension

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Appendix D: Serial Port Extension
The pMDDL can support a second serial port by utilizing a FT234XD USB to serial UART interfaced to the
USB lines of the pMDDL. The sample circuit below shows how this is done.
Drawing App-D: FTDI USB to Basic UART