Ascotel IntelliGate 2025/2045/2065
722 Earthing and protecting the PBX Part 4
[1] No earth loops
Fig. 4.13: Tree structure principle
1. Exposing the screening: Strip off the plastic outer sheath over a length of 30-
40 mm in the area of the connecting terminals for cable ties.
2. Wrap the tracer tightly about 5 times around the extremity of the screen (Fig.
4.14).
3. Contact the screen with the housing: Use a cable tie to secure the cable sec-
tion over a large area to the intended contact surface with the screening
exposed (Fig. 4.15).
Tip:
Secure several small-diameter cables together in a bundle.
Fig. 4.14: Cable screening
Connection socketsMain distribution boardPBX
X
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[1]
Sheath Sheath
Screen
30-40 mm
Tracer
Wires
haz1188aaena0