Electronic engineers are trying to solve EMC problems at the circuit board level for all electronic systems. This is not always possible or economically feasible. The characteristics of some electronic products are, by their very nature, inherently "noisy." It is at this point where the enclosure can contribute to the EMC solution. The enclosure can be used to attenuate the RFI (Radio Frequency Interference) signals generated by the system and the general interference in the environment reaching the system. Again, some systems are highly susceptible to external interference, and an EMC shielded cabinet is often the best solution...