COMMUNICATION DEVICE, POWER SUPPLYING METHOD THEREFOR, AND POWER SUPPLY SYSTEM

摘要

A communication device that establishes a communication with another communication device and supplies electric power to the other communication device by way of a transmission channel, the device comprises a supply voltage generation section that generates a supply voltage, a first detection section that detects a connection of an electric device other than the other communication device to the transmission channel, and an output control section that controls .a supply of electric power to the other communication device, wherein the output control section supplies no power to the other communication device when the first detection section detects the connection of the electric device