| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a unit structure in which individual function blocks or a power source can easily be exchanged and maintenance management is easily performed in a high-redundancy configuration. SOLUTION: An AC power source 2a and a network 3 are connected to a substrate 1. Besides, a plurality of power source blocks 4a, 4b and 4c, a plurality of control blocks 5a, 5b and 5c, a plurality of storage blocks 6a and 6b and a backup battery 7 are mounted on the substrate 1 and the individual function blocks are multiplexed into a parallel redundant configuration. Furthermore, the individual power source blocks and control blocks are connected to the interface of the substrate 1 by a connector. Thus, the data of the storage block 6a are held in the storage block 6b as well during operation. Therefore, when the storage block 6a is broken down, it is automatically switched to the storage block 6b, a computer is continuously operated and the broken storage block 6a having no power supply can be easily removed from the connector.</p> |
