| 摘要 |
PURPOSE:To provide a signal lamp lighting device capable of preventing the mislighting of a signal lamp even at the time of generating miswiring by using two-wired simplified power feeder. CONSTITUTION:The signal lamp lighting device has a power supply device 4, a power feeder 5 and a signal lamp device 6. In the device 4, a switching circuit 8 is serially connected to an AC power line led from one end of an alternate power supply 7 and outputs AC voltage so as to switch it between a full-wave voltage and a half-wave voltage The 1st power feeder 51 of the power feeder 5 is connected to the output terminal of the circuit 8. A selection circuit 65 in the device 6 lights up the 1st signal lamp 63 in response to the full-wave voltage and lights up the 2nd signal lamp 64 in response to the half- wave voltage. |
