Most often systems or apparatus are offered in different configurations, achieving different tasks. In this case the system manufacturer (assembler or integrator) should attempt to define, from an EMC perspective, the configuration most likely to a use maximum disturbance, or be the most susceptible to possible disturbances. This configuration, often called the worst case, should be defined so that the other possible configurations are included in its EMC terms. Such configuration is then brought in full compliance with the Directive. The manufacturer then declares conformity and affixes the CE marking.

Q1 : Once the above defined worst case configuration is in conformity, could the manufacturer place on the market any of its possible variants or configurations without further verification ?
Click here for answer

Q2 : What would happen if I wanted to add some new components that were not included in the original worst case configuration ?
Click here for answer