On September 5, 2018 at 01:15, davidcasemore said...
The rack end of the shielded RJ-45 is grounded to the patch panel in the rack, and the rack is bonded to the copper bonding bar - just like in the diagram provide by Ernie.
The other end is usually a keystone RJ-45 jack connected to a PLASTIC plate, in a non-grounded mud ring.
One-sided grounding.
Exactly what I was looking for.