What is a ground block? Cable Modems and Wiring IssuesWhat is a ground block? (#16215) | ||
| A ground block is a item generally placed on the outside of a residence between the cable drop and the internal wiring of a home. A ground block bonds the sheild of coax to the electrical ground of the residence. A ground block is usually connected by solid copper to either a cold water pipe or to the ground of the electrical service drop. In the attached image the large arrow points to the ground block itself, while the smaller image points at the ground connection. by Axilla | ||