| 摘要 |
<p>The parallel and series protection module includes, in a housing, at least one lightning protector mounted between two input points and two earth points, and series protection components connected between the two input points and two output points. It is characterised in that it further includes two neon lamps (7A, 7B), mounted in the housing (10) and each linked through a resistor (7A, 7B) between one of the input points (1B) and the earth point (3). Application: protection of telephone lines <IMAGE></p> |
