| 摘要 |
PURPOSE:To offer an end-to-end communication device with high economy by converting a data inputted/outputted to a data terminal device into a push-button dial signal and transmitting it via a transmitter-receiver. CONSTITUTION:When a data request signal is transmitted from an output port OUT10 via an input port IN20 of a data terminal device 6a under the control of a control section CNT1 of a network controller 5a, a control section CNT2 of the network controller 6a reads data information from the input port IN10, converts it into a predetermined push-button dial signal and outputted to an output port OUT11. The push-button dial signal is transmitted to power network from a push-button dial signal transmission section OSC. The push-button dial signal transmitted from the power network is detected by a push-button dial signal reception section REC and the push-button dial signal is converted into a data from the input port IN11. |
