| 摘要 |
PURPOSE: To minimize the system reorganization to easily change the connection by simplifying the connection at the time of connecting another computer to two computers directly connected for communication. CONSTITUTION: Terminals of first and second connection parts having two terminals are internally cross-connected, and first switches 15, 25, and 35 and a second short-circuit switch connected from respective terminals of first and second connection parts are provided, and first switches connect the computers to terminals when online signals of computers are inputted. Three alternative computers 11, 21, and 31 are provided with switching circuits 12 to 32 consisting of these switches, and switching circuits are connected by external cables 40 and 50 and are linearly arranged, and the computer arranged in the center is used as a standby computer; and if one of computers on both sides is faulty, the computer arranged in the center is operated instead of the faulty computer by switching of switches. |
