A distributing frame carrying on one side ( vertical ) all outside lines and protective devices for those lines, and on the other side ( horizontal ) all connections of the outside lines toward the central office equipment.

• 一种配线框架,在垂直面上装有所有外部线路及这些线路的保护装置,在水平面上装有外部线路指向中心局设备的连接线。