If you use the chassis ground screw, you typically connect it to a grounding bus bar mounted on the wall, which is then connected to an earth ground. The whole structure consists of a metal circuit, a protect bus, and a ground wire. Network hardware is connected to PDUs and constantly. From there ground wires connect between the block/bar to the racks and then the racks are connected to patch panels and other equipment with ground wire and grounding lugs. Where can the other end of the grounding conductor go? People have different opinions of what the code states. The M6 lug (the end with a larger hole) of the ground cable can be connected to a ground point on the cabinet/rack or a ground bar, depending on the. According to article 100 of the NEC, ground is “the earth,” and grounding is when an electrical system is connected “to earth in a manner that will limit the voltage imposed by lightning, line surges or unintentional contact with higher-voltage lines and that will stabilize the voltage to earth. To properly ground a network cabinet, locate the designated grounding point (usually a metal stud or terminal on the cabinet frame), and connect a grounding wire from that point to a building's grounding system, using a suitable grounding conductor and ensuring all metal components within the. At the center of most telecom cabinet grounding systems is the grounding busbar.