Connecting the Shield to the Local Ground and to the Two Ends of the Cable (Recommended Cable Type)
(Original Document)
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Principle
The two grounding tracks should be linked via the ground link 5 shown. End devices differ in that they only have one cable. Where this is the case, the ground link 5 shown is not required as long as the cable is positioned in slot 20 shown in the diagram.
Illustration
This diagram shows the principle for locally grounding the cable.