| 摘要 |
PURPOSE:To reduce number of wires for facilitating a work as well as containing a terminal equipment and an electronic stabilizer in one cabinet to realize miniaturization by starting or stopping oxcillation of a V-f converter in response to a blinking signal output from a transmission control unit. CONSTITUTION:In the constitution of a V-f converter 85, a blinking signal output from a transmission LSI is input to the base of a transistor Q1, and a high frequency signal with the frequency corresponding to the level of an error signal VER is output to a drive circuit through lines 11 and 12 by oscillation control IC51. When a H level signal (light distinguishing signal) as the blinking signal is input to the base of the transistor Q1, an output of a comparator is set to H level and the output of the high frequency signal is stopped by the oscillation control IC51. On the other hand, when a L level signal as the blinking signal is input to the base of the transistor Q1, the output of a comparator is set to L level and the output of the high frequency signal is started by the oscillation control by the IC51. Therefore, a terminal equipment and an electronic stabilizer can be contained in one cabinet to realize miniaturization and wiring work can be facilitated. |
