I want to design an Ethernet SPD ( surge protection) with indication.
like most of the SPD's I'm going to use a TVS ( for quick response) and a gas tube. what i need to add is an indication when a lighting hit the communication line and activate the SPD.
i want a digital pulse ( that i can count the numbers of activation with a controller) or if it not possible maybe a visual indicator.

Any ideas how to Design the above?