Startech com ic232ttl rs232 to ttl serial converter db9 f m startech com ic232ttl p this rs232 to ttl converter from startech com lets you connect devices that use rs232 serial ports to devices that only communicate using transistor transistor logic ttl signals it s a convenient and cost effective solution to convert rs232 into ttl so you can connect equipment together based on your signal requirements p p this serial converter is ideal for short distance communication between two