Chris;
I'm following this thread with interest, and since you're already getting good advice from other posters, I didn't feel the need to chime in and possibly confuse the issue...
...but now that it sounds like you're unclear and discussing chassis vs wired return paths, I did want to add clarification...either one is acceptable as long as long as all possible current paths are considered...in other words, chassis can only be the return (negative) node...so inspect all panel mounted switches and modules carefully to assure their panel connection is return only.
Cheers
|