| 摘要 |
PURPOSE:To easily restore the CRT display of each work station even at the time when a current system in a main control unit is switched to a standby system because of down. CONSTITUTION:When a main control unit 3 is switched from the current system to the standby system, the CRT number and display data are taken out from a table before switching in the work station and are set to a table for recovery processing, and a request of connection to an information source terminal 1 is outputted to the main control unit 3 based on this table for recovery processing, and the display picture state of a CRT before switching is restored. |
