D-Link DUB-940 User Manual
Appendix B - Warranty
Technical requirements for hand held UWB systems
(a) UWB devices operating under the provisions of this section must be hand held, i.e., they are relatively small devices that are primarily
hand held while being operated and do not employ a fixed infrastructure.
(1) A UWB device operating under the provisions of this section shall transmit only when it is sending information to an associated receiver.
The UWB intentional radiator shall cease transmission within 10 seconds unless it receives an acknowledgement from the associated
receiver that its transmission is being received. An acknowledgment of reception must continue to be received by the UWB intentional
radiator at least every 10 seconds or the UWB device must cease transmitting.
(2) The use of antennas mounted on outdoor structures, e.g., antennas mounted on the outside of a building or on a telephone pole, or
any fixed outdoors infrastructure is prohibited. Antennas may be mounted only on the hand held UWB device.
(3) UWB devices operating under the provisions of this section may operate indoors or outdoors.
Technical requirements for indoor UWB systems.
(a) Operation under the provisions of this section is limited to UWB transmitters employed solely for indoor operation.
(1) Indoor UWB devices, by the nature of their design, must be capable of operation only indoors. The necessity to operate with a fixed
indoor infrastructure, e.g., a transmitter that must be connected to the AC power lines, may be considered sufficient to demonstrate this.
(2) The emissions from equipment operated under this section shall not be intentionally directed outside of the building in which the
equipment is located, such as through a window or a doorway, to perform an outside function, such as the detection of persons about to
enter a building.
(3) The use of outdoor mounted antennas, e.g., antennas mounted on the outside of a building or on a telephone pole, or any other outdoors
infrastructure is prohibited.
(4) Field disturbance sensors installed inside of metal or underground storage tanks are considered to operate indoors provided the
emissions are directed towards the ground.
