Chapter 3 respectively introduces what the eib emphasizes on and the traditional building automatic system emphasizes on and the complementary relationship between them . then the paper provides the method of layout and the function of the switch - box , and also chooses two examples to illustrate them 第二章介绍了eib与传统楼宇自动化系统( bas )的各自侧重点与互补关系,以及eib的配线方式和配电箱功能,并以两个实例加以说明。