Siemens FIREFINDER-XLS Installation, Operation And Maintenance Manual page 131

WARNING:
This equipment generates, uses, and can radiate radio
frequency energy and if not installed and used in accor-
dance with the instructions manual, may cause interfer-
ence to radio communications. It has been tested and
found to comply with the limits for a Class A computing
device pursuant to Part 15 of FCC Rules, which are
designed to provide reasonable protection against such
interference when operated in a commercial environ-
ment. Operation of this equipment in a residential area is
likely to cause interference in which case the user at his
own expense will be required to take whatever measures
may be required to correct the interference.