According to NEC and local electric codes, where should the ground block or ground splitter be mounted?

The ground block or ground splitter should be mounted close to where the cable first attaches to the customer premises because this location minimizes the length of the grounding conductor, ensuring that it is as effective as possible in providing a direct path to ground. By positioning the ground block in proximity to the entry point of the cable, you enhance the overall safety of the installation, as it helps protect against electrical surges and lightning strikes, reducing the risk of damage to equipment and ensuring compliance with the National Electrical Code (NEC) and local regulations.

Mounting the ground block closer to the point of entry also supports the effectiveness of grounding by reducing the potential difference between the ground and the cable system, helping to ensure that any induced currents from external sources are safely redirected to ground. This practice is crucial in maintaining a safe and reliable telecommunications environment.