Patent ID: 8896153

Claim:
An electric power supplying system comprising: at least two systems each comprising: a bus line comprising at least two conductors, wherein the bus line carries an information signal representing information superimposed on electric power; at least one power supply server connected to the bus line and configured to supply the electric power; and at least one client connected to the bus line and configured to receive the supply of the electric power from the power supply server, wherein the at least two systems are connected to each other by connecting the bus lines to each other using conductors, wherein the conductors comprise a connector having at least two electrodes that connect with other of the conductors, wherein one of the electrodes is longer than the other of the electrodes, such that when the connector is connected to the bus line, the one of the electrodes is in contact with the bus line before the other of the electrodes, wherein the one of the electrodes that is longer than the other of the electrodes causes the information signal to be transferred to the bus line.