ok, so what is the difference between a line driver and the TX pin of my UART?
i would imagine that it has a higher current sourcing capability.
would this be correct:
the more current flowing through the signal/gnd pair, the higher the immunity to noise.
a termination resistor is added to increase current flow, so that a more powerful external influence(EM field) is required to induce a noticeable current and disturb the data stream.
what i need is to send data from my computer down a cable to about 5 receiving endpoints.
the data will be at 19.2kbaud.
so i would need a line driver on the output of my computer's UART, a twisted pair cable, and an inverting buffer on each endpoint receiver connected to it's MCU.
should i also put termination resistors at each endpoint?
if my idea of termination resistors is correct, this should reduce noise.