提出了一种可叠加的新型ＡＴＭ接口交换板，由ＡＴＭ物理层接口、ＡＴＭ层翻译逻辑、共享存储器交换网络、ＡＴＭ信令处理单元以及计算机控制与管理系统等组成，具有在板交换、信令插入／提取，以及本地ＣＰＵ信令分析处理功能。折叠式交换单元通过背板混洗总线进行互连，构成分布式ＡＴＭ交换机，扩容简单且性能／价格比高。描述了新型接口交换板的系统结构、各部分组成和具体实现。 A novel stackable ATM interface switchboard is proposed. It consists of ATM physical layer interface, ATM layer translation logic, shared memory switching network, ATM signaling processing unit and computer control and management system. Insert / extract, and local CPU signaling analysis and processing functions. Folding exchange unit through the backplane shuffling bus interconnect, constitute a distributed ATM switch, expansion of simple and high performance / price ratio. Describes the new interface switchboard system structure, the various components and specific implementation.