| 摘要 |
<p>A redundancy system switching control system includes two packages and logic circuits. The two packages are alternately switched as an operating system package and a standby system package. The logic circuits are arranged on the two packages, respectively, and each of the logic circuits outputs selection information/non-selection information to a remote package using self-package alarm information, self-package forcible switching information, remote-package alarm information, and selection information/non-selection information as four inputs. Each of the logic circuits, when a self-package serves as the operating system package, outputs selection information to the remote package by receiving any one of non-selection information from the remote package and the self-package alarm information when the self-package does not receive the remote-package alarm information. Each of the logic circuits, when the self-package serves as the standby system package, outputs non-selection information to the remote package by receiving any one of selection information from the remote package and the self-package forcible switching information.</p> |
