Techniques are described that can be used to extend the data transmission rate specified by 10GBASE-KR of IEEE 802. The conveyor belt aligning device further comprising adjusting means for adjusting the distance between the first axis and the second axis and adjusting means for adjusting the distance between the second axis and a central axis of rotation of the guide roller. The second wiring has extension sections extending in non-wiring regions in the connection region to be connected to the contact section.