This is a telephone line over voltage protector.
This is basen on a design I did originally around 1995.
Has been available for almost 30 years.
That white thing is a deal gas discharge tube over-voltage protector that dissipates most of the over-voltage surge. It is followed with two other layers of protection (VDR and surgector)
2 Comments
snow rider says:
This is a great breakdown of phone line over-voltage protection! The detailed explanation of surge protection methods and components like gas discharge tubes and MOVs is really useful. Keeping communication lines safe from voltage spikes is crucial, and this article does a fantastic job of explaining how to do it effectively.
Snow Rider 3D says:
hmmm, this is a great breakdown of phone line over-voltage protection