The DMS device does meet all EMV requirements under the following conditions: 1. The device is operated in a DMS rack with CE certification. All devices of a VMEbus system need to comply with the EU guidelines on electromagnetic compatibility (#89/336/EWG) (i.e. must feature a CE symbol). 2. The VMEbus-system frame ground must be connected to the system ground through a low resistance cable. 3. PROFIBUS systems must employ cables and connectors that are recommended by DMS or that are compatible with those recommended by DMS
Shielded Cables are to be used for all additional data connections.
All connectors (jacks, sockets, and plugs) must be fitted with a metal shielding. The protective case must be connected bidirectionally conducting with the cable shielding. In order to prevent transient currents within the GND shielding, the potential drop needs to be compensated for by means of bonding. 5. Data cables must not be installed near the mains lead or near cables with a high throughput or switching high inductance loads. 6. When installed outdoors all cables that may be subjected to excessive voltages (e.g. lightning) are to be fitted with lightning arresters or to be protected by metal tubes
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