| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a signal transmission device. <P>SOLUTION: The signal transmission device includes two connection lines. Two connectors are respectively provided to both ends of each connection line. Two alarm devices are fixed to the two connection lines so that each alarm device is fixed closer to corresponding one of the two connectors. Two conductor wires are respectively connected to the two alarm devices to form a closed circuit. Thereby, when one of the two alarm devices is connected to a power supply, the two alarm devices operate synchronously to make a user confirm that any of connection lines operates. <P>COPYRIGHT: (C)2012,JPO&INPIT |
