| 摘要 |
PROBLEM TO BE SOLVED: To provide a communication harness that is formed by that two or more twisted pair wires are serially connected by a connector, and in which impedance matching can be achieved.SOLUTION: A connector 3 as one that has a characteristic impedance of about 130 &OHgr; having actual achievement for in-vehicle is used, twisted pair wires 21, 22 are twist-released to be subjected to connector connection, a characteristic impedance becomes higher than a characteristic impedance 100 &OHgr; of a transmission part and a reception part as a device to be connected to Ethernet (R), thereby impedance mismatch is generated, and return loss becomes large. The characteristic impedance is corrected by an impedance correction part 4, thereby impedance matching as the whole of a communication harness 1 can be achieved. |
