针对机械工厂综合布线干线子系统、建筑群子系统,参照相关标准的有关规定,结合设计施工实践,首先概述了其组成及设计要求,然后分别讨论了单模光缆与多模光缆的选择、3类大对数电缆与市话电缆的选择、主干光缆与主干容量选择、管槽尺寸选择、厂区设计等问题。 According to the relevant provisions of the relevant standards and the general wiring subsystem and building subsystem of the machinery factory, the composition and design requirements are summarized firstly, and then the choice of single-mode optical fiber cable and multi-mode optical fiber cable is discussed respectively. 3 The choice of large-scale cable and local telephone cable, trunk cable and trunk capacity selection, slot size selection, plant design and other issues.