How do I connect the cable to the RX and TX signals of my target board?
The RX line of the cable (GREEN wire) should go to TX line of the target board; the TX line of the cable (RED wire) should go to the RX line of the target board. The BLUE wire should go to the target's GND line.
What are the serial port settings?
After you install the drivers the default terminal settings for the port associated with USB-SERIAL-CABLE-F are: 115200 baud, 8-N-1