I'm looking for suggestions for a cost-effective, fault-protected alternative to the standard SN75176 RS422/rs485 driver.
There are about a thousand different 8-pin driver chips out there for this protocol. What is the most commonly used device when doing RS422/RS485 with fault protection? I'm guessing this will lead me to the cheapest one too.
Originally I designed the PCB for my project to accommodate the SN75176, but now I realize it has no fault protection. I've ordered a few LT1785 transceivers to try out: they have 60V fault isolation.
My application has 24V, 10A and RS-485 (for DMX) running along one 4-conductor cable. It works perfectly, but I am worried about the day that a cable shorts out-- and the whole network goes POOF!