Altera Cyclone II FPGA Starter Development Board - Manual (Page 51)

Altera Corporation Reference Manual 2–33
October 2006 Cyclone II FPGA Starter Development Board
Development Board Components
Figure 2–25. RS-232 Serial Connector
RS-232 Circuit Schematic
Figure 2–26 shows the RS-232 serial circuit schematic.
Figure 2–26. RS-232 Serial Circuit Schematic Diagram