Patent ID: 9729354
Date: 2017-08-08
CPC Classifications: H04B,H04L

Claim:
1. A cable signal detector for being provided at a connector at an end of a communication cable transmitting differential signals or at a relay connector to be connected to the connector to detect an existence of information communication, the cable signal detector comprising: an amplifier circuit that branches and extracts a portion of a signal transmitted through the communication cable, amplifies the extracted signal and outputs the amplified signal; a circuit board mounting connectors of the relay connector; and a display portion that displays the existence of information communication based on the output of the amplifier circuit, the display portion being mounted on the circuit board, wherein the amplifier circuit is mounted on a detection device formed separately from the connector or the relay connector, the detection device being connected to the circuit board, and wherein the connector or the relay connector is configured to transmit the extracted signal to the detection device.