Digital Subscriber Line Lightning Protection Router

Abstract

A lightning-proof router of a digital subscriber line comprises a central control unit, a wide area network interface unit and a local area network interface unit which are integrated on a printed circuit board. The central control unit is respectively electrically connected with the wide area network interface unit and the local area network interface unit. The lightning-proof router is characterized in that discharge gaps are arranged on the printed circuit board, lightning stroke signals of a signal transmission line of the wide area network interface unit are guided to a signal transmission line of the local area network interface unit by the discharge gaps and are grounded to be released via a computer terminal by a network cable, and accordingly the lightning-proof grade of user-side hardware equipment is effectively improved.

Description

【Technical field】 [0001] The invention relates to lightning protection equipment, in particular to a digital subscriber line lightning protection router. 【Background technique】 [0002] Thunderstorms are frequent in East China, South China, and Central China. With the advent of the period of high incidence of thunderstorms, lightning electrical incidents that plague many users at this time every year have also entered a stage of frequent occurrence. After the thunderstorm, the originally used network equipment inadvertently became "scrap copper and rotten iron", and the loss was huge. Especially for some business places, such as Internet cafes, retail businesses, and all enterprises that rely on the Internet for business, the loss caused by lightning strikes is not only the loss of hardware, but also the interruption of business due to the suspension of business or inconvenient contact caused by the network. , the loss is even more incalculable. Since the digital subscrib...

AI Technical Summary

Problems solved by technology

However, the digital subscriber line telephone line, as a two-wire twisted pair, generally senses the same lightning strike signal, that is to say, it is often the common mode lightning strike signal that causes frequent failures.

Part of the terminal equipment with differential mode damage is also caused by the uneven discharge of the common mode lightning signal into the differential mode signal.

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