Dell PowerConnect RPS-600 Installations-Handbuch Seite 23

MIC Class A Regulatory Label
If the regulatory label includes the following marking, your computer is a
Class A product:
Class B Device
Please note that this device has been approved for nonbusiness purposes
and may be used in any environment, including residential areas.
MIC Class B Regulatory Label
If the regulatory label includes the following marking, your computer is a
Class B product.
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D e l l Po w er C on n e c t RP S - 6 00 S e tu p G u i d e