On 8 May 2018 at 12:53, Gene Heskett <ghesk...@shentel.net> wrote: > Is there a possible violation of the single point ground? Some cable > shield grounded on both ends for instance?
The internet says that that might be correct for 2.5Mb serial data. https://www.edn.com/electronics-blogs/the-emc-blog/4417778/Questions-on-cables-for-EMC-mitigation > Or a possible failure of the supply's output capacitors? ESR from their > aging comes to mind. And switchers do tend to abuse those caps. This PSU is just a bridge rectifier and some big caps. Unregulated straight off the mains. I think that any noise has to be PWM noise from the other drives. -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunatics." — George Fitch, Atlanta Constitution Newspaper, 1916 ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users