Patent ID: 6487466
Filing Date: 2002-11-26
Classification: G06F

Abstract:
A control system, comprising:control means for controlling an overall system, said control means generating and outputting a reset signal based on the occurrence of at least one reset-condition; and a plurality of input/output means for interfacing appliances, said plurality of input/output means being reset in response to the reset signal from said control means; wherein said control means includes: a switch for selecting whether or not the reset signal is outputted to said plurality of input/output means; and a reset circuit for directly outputting a reset signal having a â€œHIGHâ€  level to said plurality of input/output means when said control means is set to output the reset signal by selecting said switch, and for not outputting the reset signal to said plurality of input/output means when said control means is set not to output the reset signal thereby changing the reset signal to â€œLOWâ€ ; and a backup control means for controlling said overall system at a time when said control means does not control said overall system; and a bus switching means for controlling a bus to connect the plurality of input/output means with one of said control means and said backup control means, said control means, said backup control means, and said bus switching means being connected to a backplane; wherein the selection of the switch of said control means is overridden so that the reset signal is necessarily outputted to said bus switching means.