I am trying to convert a 3.3V 50 Ohm Impedance TTL Pulse-per-second into other formats (GPIB, USB, RS-232, etc.). I've found some format adapters/convertors like the MAX232, but I am either misunderstanding something or missing something.
So I know the TTL line has a 50 Ohm impedance, and from looking at the RS-232 standards, the impedance is 3k-7k (?). I imagine the MAX 232 doesn't convert/impedance match. So, do I have to do my own impedance matching from 50 --> MAX 232 --> Whatever the RS-232 is (any idea how I can find out from the spec since if it is indeed 3k-7k, thats pretty much pure reflection if im not mistaken).