This is a video tutorial about RJ45. This video shows how to punch down an RJ45 keystone jack using a impact tool. The first thing that we gonna do is strip the wire. It is very important because when we connect the wire, it can cause the problem. And then, put the wire on RJ45, after that punch it down using a impact tool. The last thing is put the RJ45 to keystone jack. Here is the video :