| 摘要 |
PROBLEM TO BE SOLVED: To visually confirm the presence or absence of information communication in a communication cable, easily at a low cost.SOLUTION: A communication visualization apparatus 10 is provided in an extension adapter extended by connecting two LAN cables 80. The communication visualization apparatus 10 has an amplifier circuit 11, a rectifier circuit 12, and a light-emitting circuit 13, and a communication signal transmitted on the LAN cable 80 is input to the amplifier circuit 11. The amplifier circuit 11 uses the power supply, created by an external power supply device 85 connected externally, as an operation power supply, and amplified an input communication signal. The rectifier circuit 12 converts the communication signal, amplified by the amplifier circuit 11, into a DC voltage. The light-emitting circuit 13 emits light based on the DC voltage converted by the rectifier circuit 12.SELECTED DRAWING: Figure 1 |
