| 摘要 |
PURPOSE: A matrix routing switcher for providing a presetting function and a remote control function is provided to reduce installation time by setting a routing table in remote. CONSTITUTION: A control box(200) comprises a button(210), an LCD(220), an RS232C communication unit(240), and a microprocessor(230). An operation is inputted by the button. The LCD displays an operation state and the operation input. The RS232C communication unit communicates with a control board using a predetermined communication protocol. The microprocessor displays the operation state on the LCD. The microprocessor displays a content, which is inputted in an input state of the button, on the LCD. The microprocessor transmits the user input to a control board(110) using the RS232C communication unit. The control board comprises an RS232C communication unit(111), a setting memory(115), the memory(113), a communication unit(116), and a microprocessor(114). [Reference numerals] (111,240) RC-232C communication unit; (113) Memory; (115) Setting memory; (116) Communication unit; (210) Button; (AA) Control data
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