【通信应用笔记】SLIC的保护.pdf APPLICATION NOTE SLIC PROTECTION A. BREMOND I INTRODUCTION II OVERVOLTAGES ACROSS TELECOM- MUNICATION LINES : The goal of the telecommunication network (fig.1) is to permit the data exchange (speech or digital) between two (or more) subscribers. II.1 Atmospheric effects : The network is made up of different parts which are subject to various disturbances. Fig.2 Lightning phenomenum The most susceptible elements ar……