| 摘要 |
A device for controlling power comprising a power source input, at least one power contact or outlet, a power control relay, a digital signal input port and a digital signal detector. The device controls power from the power source input to the at least one power contact or outlet by operation of the power control relay. The power control relay opens or closes based on the presence of a digital signal or lack thereof. The detection of the presence of the digital signal or the lack thereof is accomplished by the digital signal detector electrically coupled to the digital signal input port. Detection of a digital signal may be accomplished by using one or more Ethernet signal detectors capable of detecting data transmission or the presence of PoE. Additionally, a method is taught to control power to power consuming devices by using the aforementioned device. |
