| 摘要 |
PURPOSE:To secure symultaneous instruction by sending a terminal reset signal out of a key station and placing a terminal station in a waiting state forcibly at the start of symultaneous instruction, and then sending a symultaneous instruction. CONSTITUTION:When symultaneous instruction is started from a symultaneous instruction board 1, the controller 2 of the key station sends the terminal station reset signal 9 through a radio device 3 to initialize all terminal stations forcibly. The symultaneous instruction signal is sent out and then symultaneous instruction content is sent out. Therefore, even if some terminal is in use, it is initialized forcibly, so the symultaneous instruction is received securely and processed. |
