It's not part of any telecom standard I know of, and is up to the manufacturer of the device with the jack, who should provide this info. Some applications I've seen use pin 3 for ground, and DC voltage on pin 4. No guarantees!
Hey guys, does anyone know how wire these things in the meanwell drivers? I cant seem to find too much info about it. I just watched greengenes video about the amelech controller... is it the same kind of thing? @Greengenes707