UM2448 Rev 6 47/49
UM2448 Federal Communications Commission (FCC)
48
Appendix A  Federal Communications Commission (FCC) 
15.3 FCC Compliance Statement
15.3.1 Part 15.19
Part 15.19
This device complies with Part 15 of the FCC Rules. Operation is subject to the following 
two conditions: (1) this device may not cause harmful interference, and (2) this device must 
accept any interference received, including interference that may cause undesired 
operation.
Part 15.21
Any changes or modifications to this equipment not expressly approved by 
STMicroelectronics may cause harmful interference and void the user's authority to operate 
this equipment.
Part 15.105
This equipment has been tested and found to comply with the limits for a Class B digital 
device, pursuant to part 15 of the FCC Rules. These limits are designed to provide 
reasonable protection against harmful interference in a residential installation. This 
equipment generates uses and can radiate radio frequency energy and, if not installed and 
used in accordance with the instruction, may cause harmful interference to radio 
communications. However, there is no guarantee that interference will not occur in a 
particular installation. If this equipment does cause harmful interference to radio or 
television reception which can be determined by turning the equipment off and on, the user 
is encouraged to try to correct interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on circuit different from that to which the receiver 
is connected.
• Consult the dealer or an experienced radio/TV technician for help.
Note: Use a USB cable with a length lower than 0.5 m and added ferrite on the PC's side.
Other certifications
• EN 55032 (2012) / EN 55024 (2010)
• CFR 47, FCC Part 15, Subpart B (Class B Digital Device) and Industry Canada ICES-
003 (Issue 6/2016)
• Electrical Safety qualification for CE marking: EN 60950-1 
(2006+A11/2009+A1/2010+A12/2011+A2/2013) 
• IEC 60650-1 (2005+A1/2009+A2/2013)
Note: The sample examined must be powered by a power supply unit or auxiliary equipment 
complying with standard EN 60950-1: 2006+A11/2009+A1/2010+A12/2011+A2/2013, and 
must be Safety Extra Low Voltage (SELV) with limited power capability.