Patent ID: 8817779
Filing Date: 2014-08-26
Classification: H04B,H04L,H04M,Y10S

Abstract:
1. A device for a local area network (LAN), the LAN including a LAN cable having at least four wire pairs to carry a plurality of data signals, and the device comprising: a first transformer having a primary winding and a secondary winding, the first transformer being operative to pass a first data signal; a second transformer having a primary winding and a secondary winding, the second transformer being operative to pass a second data signal; a third transformer having a primary winding and a secondary winding, the third transformer being operative to pass a third data signal; a fourth transformer having a primary winding and a secondary winding, the fourth transformer being operative to pass a fourth data signal, and the primary winding of each one of the transformers being communicatively couplable to a respective one of the four wire pairs, the secondary winding of each one of the transformers being arranged within the device for transferring a respective one of the data signals to or from the associated primary winding, and wherein a first center-tap connection of the primary winding of any one of the transformers and a second center-tap connection of the primary winding of any other one of the transformers form a pair of center-tap connections for receiving a phantom signal from a first phantom channel defined over the two pairs of the four wire pairs that correspond by coupling relation to the pair of center-tap connections; and a single enclosure housing the first, second, third and fourth transformers, and the device being configured to provide the phantom signal to a power consuming device.