How to reduce coupling when routing power DTU wiring harnesses?

Reducing DTU harness coupling requires optimizing routing and grouping. Harness routing should follow the right-angle intersection principle, avoiding parallel routing; if parallel routing is unavoidable, the spacing should be greater than three times the wire diameter. Harness grouping: power lines, signal lines, and high-frequency lines should be bundled separately, with a distance of more than 5cm between groups. Use shielded cables, and ground the shielding layer. Use non-metallic cable ties for fixing points to avoid grounding loops. Optimize routing by simulating and analyzing the coupling capacitance and inductance between harnesses. In actual measurements, coupling noise measured with an oscilloscope should be less than 5% of the signal amplitude. Reducing coupling can reduce crosstalk by 20dB.