Patent ID: 6956463
Filing Date: 2005-10-18
Classification: H04B

Abstract:
1. A system for providing power and communication between a plurality of low voltage devices, comprising: a master unit connected to a 24V AC power source; at least one slave unit connected to said master unit by a power/communication line, wherein said power/communication line is a two-wire buss consisting of a power/communication wire and a common wire; capacitance means in said master and slave units for storing power during a power source half cycle of a first polarity; disconnecting means for disconnecting said AC power source from said power/communication wire during a power source half cycle of a second polarity; wherein power is delivered to said system during said power source half cycle of said second polarity from said energy stored in said capacitance means; and communication means for communicating between said master and slave units during said power source half cycle of said second polarity.