Renishaw RLE Safety Information Manual page 4

FCC
Information to the user (FCC section 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.
Information to the user (FCC section 15.105)
NOTE: This equipment has been tested and found to comply with the
limits for a Class A digital device, pursuant to Part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against
harmful interference when the equipment is operated in a commercial
environment. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance with the
RLE fibre optic laser encoder installation guide, may cause harmful
interference to radio communications. Operation of this equipment in
a residential area is likely to cause harmful interference in which case
the user will be required to correct the interference at his own expense.
Information to user (FCC section 15.21)
The user is cautioned that any changes or modifications not expressly
approved by Renishaw plc or authorised representative could void the
user's authority to operate the equipment.
Special accessories (FCC section 15.27)
The user is also cautioned that any peripheral device installed with this
equipment, such as a computer, must be connected with a high quality
shielded cable to ensure compliance with FCC limits.