Patent ID: 6751676
Filing Date: 2004-06-15
Classification: G06F,H04L,Y02D

Abstract:
A network control system which includes a managing device, separate devices that communicate with said managing device, and a repeater that interconnects said managing device and said separate devices, and in which when a power source switch on a separate device having received an activating signal from said managing device via said repeater is turned on, said managing device performs various kinds of maintenance on the separate device, said network control system comprising:a power source control circuit, included in each separate device, for controlling the on-state and off-state levels of a power source that is to be delivered to a circuit including at least a separate device side activating signal monitor unit which monitors whether or not an activating signal has been received, wherein when said power source control circuit detects that said power source switch is in off-state, said power source control circuit suppresses the transmission of a predetermined signal to said repeater.