Disturbance protection for a telecommunications device

摘要

A telecommunications device comprises at least one input port (1), an output port (18) and a part implemented by means of semiconductor components. A gas-discharge tube (17) is arranged at the output port (18) of the telecommunications device, and said gas-discharge tube is the first overvoltage protection component. A second overvoltage protection component is arranged in the vicinity of the semiconductor components to be protected. The telecommunications device also comprises a third overvoltage protection component, and the first, second and third overvoltage protection components are provided with different properties.