| 摘要 |
PURPOSE:To omit a didicated communication line connected to a power supplied device (for instance, work station). CONSTITUTION:A power line carrier communication device 31 is connected to an output end 23 through a band pass filter 32, to inform a supplied device 24 of power interruption, capacity of a battery 18, etc., by the communication device 31 from a control circuit 25, and inquiry from the supplied device 24 and information are received by the communication device 31, to perform processing in accordance with this receiving in the control circuit 25. |
