138 CHAPTER : REGULATORY NOTICESlimitation of exposure of the general public to electromagnetic fields (0Hz to 300 GHz)].US - Radio FrequencyRequirementsThis device must not be co-located or operated in conjunction with anyother antenna or transmitter.USA-FEDERALCOMMUNICATIONSCOMMISSION (FCC)This device complies with part 15 of the FCC Rules. Operation is subjectto the following two conditions: (1) This device may not cause harmfulinterference, and (2) this device must accept any interference received,including interference that may cause undesired operation.This equipment has been tested and found to comply with the limits for aClass B digital device, pursuant to Part 15 of FCC Rules. These limits aredesigned to provide reasonable protection against harmful interference ina residential installation. This equipment generates, uses, and can radiateradio frequency energy. If not installed and used in accordance with theinstructions, it may cause harmful interference to radio communications.However, there is no guarantee that interference will not occur in aparticular installation. If this equipment does cause harmful interferenceto radio or television reception, which can be determined by tuning theequipment off and on, the user is encouraged to try and correct theinterference by one or more of the following measures:■ Reorient or relocate the receiving antenna■ Increase the distance between the equipment and the receiver■ Connect the equipment to outlet on a circuit different from that towhich the receiver is connect■ Consult the dealer or an experienced radio/TV technician for helpThe user may find the following booklet prepared by the FederalCommunications Commission helpful:The Interference HandbookThis booklet is available from the U.S. Government Printing Office,Washington, D.C. 20402. Stock No.004-000-0034504.3Com is not responsible for any radio or television interference caused byunauthorized modification of the devices included with this 3ComOfficeConnect ADSL Wireless108Mbps 11g Firewall Router (WL-553), orthe substitution or attachment of connecting cables and equipment otherthan specified by 3Com.