I have an enclosure containing an earth ground line. It has a brass earth ground bus that is connected to:
- the input earth pin of a 120V single-phase mains IEC320-C14 connector
- the output earth pin of a 120V single-phase NEMA 5-15R connector
- earth terminal for a self-contained SMPS with a metal case
The enclosure is ABS, so I haven't bothered to ground it.
I'm considering adding another ground connection from the bus to an L717SDE09P DSUB9 connector. The connector shell is tin-plated steel. It has "grounding indents" which I assume are the indents on the exterior (pin) side of the shell.
Currently I'm considering running a copper stranded wire from the earth bus to something in the ring crimp category. The ring would sit on the interior of the enclosure between a washer and a nut on one of the DB9 shell's jack screws. Is this a viable approach? Is there anything I'm missing?