| 摘要 |
PURPOSE:To collect the status data of an external apparatus and to obtain generality irrespective of the control of a specific apparatus by transmitting data to an external apparatus interface circuit under control from a terminal control circuit. CONSTITUTION:An input terminal 13 and an output terminal 14 are formed to transmit signals between the external apparatus interface circuit 10 and an external equipment. Serial data communication is executed between a terminal control circuit 7 and the circuit 10. The circuit 10 receives a data signal from the circuit 7, connects the equipment connected to the terminal 14, collect the status data of the equipment connected to the terminal 3, and sends data to the circuit 7. |
