Dell Latitude C540 - Manual (Page 152)

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.
Polish Center for Testing and Certification Notice
The equipment should draw power from a socket with an attached protection circuit (a 3-prong socket). All
equipment that works together (computer, monitor, printer, and so on) should have the same power supply
source.
The phasing conductor of the room's electrical installation should have a reserve short-circuit protection
device in the form of a fuse with a nominal value no larger than 16 amperes (A).
To completely switch off the equipment, the power supply cable must be removed from the power supply
socket, which should be located near the equipment and easily accessible.