Do I really need to ground both ends of my shielded cable?Updated 5 hours ago

Per TIA standards and BICSI recommendations, all shielded cabling systems should be bonded to ground at both ends utilizing shielded patch panels, termination hardware, and shielded patch cords. This method ensures the effective functioning of the cable shield, even when EMI/RFI/ESD drain must occur over long distances, by essentially providing the shorter path to the bonding infrastructure. 

This methodical approach presumes that all potential paths to ground are equalized and do not exceed a maximum impedance of 100 milliohms (0.1 ohms). The standard for correct installation of shielded cabling systems was established in the context of a commercial structure where all components have been installed by professional contractors capable of testing the system as designed. 

There are instances where such an approach may induce issues such as a ground loop, typically occurring when multiple structures (i.e., multiple AC electrical systems) are involved. In such cases, it may be necessary to mitigate a ground loop condition, and several options exist.