RF600 system planning
4.6 Guidelines for electromagnetic compatibility (EMC)
RF600
System Manual, 09/2005 Edition, J31069 D0171-U001-A0-7618,
4-21
Shielding by enclosure
•
Protect the device against external interference by installing it in a cabinet or housing.
The housing or enclosure must be connected to the chassis ground.
•
Use metal plates to shield the device against electromagnetic fields.
•
Use metal connector housings to shield data conductors.
Wide-area ground connection
•
Bond all passive metal parts to chassis ground, ensuring large-area and low-HF-
impedance contact.
•
Establish a large-area connection between the passive metal parts and the central
grounding point.
•
Don't forget to include the shielding bus in the chassis ground system. That means the
actual shielding busbars must be connected to ground by large-area contact.
•
Aluminium parts are not suitable for ground connections.
Plan the cable installation
•
Break the cabling down into cable groups and install these separately.
•
Always route high-voltage and signal cables through separated ducts or in separate
bundles.
•
Feed the cabling into the cabinet from one side only and, if possible, on one level only.
•
Route the signal cables as close as possible to chassis surfaces.
•
Twist the feed and return conductors of separately installed cables.
•
Cable routing of HF cables:
Avoid installing cables in parallel over long distances and maintain minimum distances
between the cables (at least 25 cm)
