  MadMANN Premium join:2005-08-19
·Comcast
| reply to bbskeptic Re: Any good electrical contractor will tell you...
said by bbskeptic :The electronics in the ONT are powered by AC from the house...which is.. duh... grounded You need a common grounding point between the ONT and the house ground. Even if the power supply was grounded through the house power outlet, you still need a direct ground from the ONT to the home's power ground wire.
With your logic, if a cable modem or TV connected to cable is plugged into a grounded power outlet, then the cable wouldn't need a ground block. |