Each power supply module will require a chassis ground connection.  If you are mounting to a grounded surface then it is recommended that you connect a braid from the external ground stud directly to the surface.  There are also chassis ground wire terminals located on the power supply’s wiring hub.  If your system is to be MIL-STD 461E qualified then you must add a chassis ground braid on every module in the node.

Fairmount Part Number



Chameleon Grounding Strap/Braid