X350/X550 User ManualPage 5Regulatory ComplianceFCC InformationThis equipment has been tested and found to comply with the limits for a class B digitaldevice, pursuant to part 15 of the FCC Rules.These limits are designed to provide reasonable protection against harmful interferencein a residential installation. This equipment generates, uses, and can radiate radiofrequency energy, and if not installed and used in accordance with the instructions, maycause harmful interference to radio communications. However, there is no guaranteethat interference will not occur in a particular installation. If this equipment does causeharmful interference to radio or television reception, which can be determined by turningthe equipment off and on, the user is encouraged to try and correct the interference byone or the following measures:• Reorient or relocate the receiving antenna• Increase the separation between the equipment and the receiver• Connect the equipment to a power outlet on a circuit different from which thereceiver is connected• Consult your dealer or an experienced radio TV technician for helpChanges or modifications not expressly approved by the party responsible forcompliance could void the user’s authority to operate the equipment. For enhancingperformance and reliability, we recommend using FTP or STP cable between the X350or X550 PCI card and the XD2 devices.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 thatmay cause undesired operation.