Level Converter RS232 to TTL

A converter board for electrical levels
Chip: MAX3232CSE
Size: 9.4 mm x 15.9 mm
Voltage Range: 3~5V
Max. Baud Rate: No more than 120kbps
Both sides of the power supply connected together; just pick one side to connect
Two respectively independent channels can be used
Arrows show the signal flow. The inward means input, outward means output
Area near the RS232 is RS232 level, area near the TTL is TTL level