| 摘要 |
PURPOSE:To operate quickly an exchange without the input mistake of service order by connecting a display device or the like with a central processing unit performing the input analysis of a key, the control of a input state display lamp and the display device, command edition and communication control via a bus. CONSTITUTION:When plural input state display lamps 12 are lighted, a key input is performed out of the lamp according to a job to be executed. After the input key is analyzed, the input is edited into a command format, the result is display on the display device 11 through buses 17 and 19 to enter the next sequence. The input state display lamp 12 is lighted in a function key 13 being a command transmission key, and when the key is inputted, the edited command is transferred to an interface circuit 16 through the bus 17 and transmitted to an exchange. After the transmission of the command, the central processing unit 15 receives a message received by the interface circuit 16 through the bus 17 so as to display an effective message on the display device 11. |
