Shielding
Every conductor can emit or receive a magnetic field. This means that every conductor can act both as a transmitting and a receiving antenna. A single unshielded or unfiltered cable can interfere with all of the measures taken to prevent interference emissions. Single-sided shielding of a cable is only effective against capacitive coupling of parallel cables, not against magnetic fields. Therefore, the shield must always be connected on both sides. The shield should be made of copper.
- Utilize the shielded power cables and electronics cables.
- Connect the shield to ground on both sides with flat contact. In the case of multiple-shielded cables, also connect the inner shields to ground on both sides with a flat contact.
- Use EMC-capable plug connectors.
- For external bus connections, refer to the bus-specific installation instructions.
