RS232 to TTL converter board DCE with Female DB9 3.3V to 5V
Our new RS232 Converter Board, is a quick and easy solution to adding RS232 communication to your project. The board connects directly to most standard microcontroller UART's to provide simply 2-wire communication.The board incorporates the industry standard ICL3232 for signal conversion and buffering. Suitable for standard TTL 3V to 5.5V input. This compact and inexpensive board can be used on most control systems.This version has a female DB9 connector wired in DCE mode (pin 2 = TX Output, pin 3 = RX Input, pin 5 = GND, pin 7 = CTS Input, pin 8 = RTS Output)Schematics:  http://media.nkcelectronics.com/downloads/rs232ttlv7.pdf