point of demarcation definition
The Demarcation Point is the physical point where the public network ends and the private network of a customer begins. Simply put, the Demarcation Point, or Demarc, marks the point where the customerâs network interfaces with the network owned by another company or additional party. While the locational definition of this point can vary depending on region, the Demarc is typically located at the point where the cable physically enters a building, or the customerâs premises. Even defined, it can be difficult to discern the need of this point; however, the Demarc has a number of applications in its use. The Demarcation Point has user accessible jacks that connect to telephone networks, as well as small loops of telephone cords that connect to jacks by modular connectors.