Patent ID: 7401239

Claim:
A power supply apparatus, the power supply apparatus comprising: an AC input for voltage ranging from about 100 volts to 240 volts and a frequency of 50 to about 60 Hertz; a converter for converting AC power into DC power, the converter comprising an input and an output; the input of the converter being coupled to the AC input; a DC output for voltage ranging from about a first determined amount to about a second determined amount, the output of the converter being coupled to the DC output; a fan operably configured to transfer thermal energy away from the converter; a data input/output port, the data input/output port being coupled to a data signal from a data source; a coupler coupled between the data input/output port and the AC input; a power line module coupled to the coupler, the power line module being adapted to convert the data signal from a first format to a second format, the second format being capable of transmission to the AC input; and an enclosure provided for the coupler, the enclosure being made of metal material to shield high frequency noise, the enclosure being adapted to shield the data signal.