协议适配器在电话网管理系统中起着非常重要的作用。文中从软件上设计了协议适配器的7个模块:话务模块、告警模块、配置模块、发送模块、异常模块、主控模块、次控模块,简述了各模块的功能,并且详细地介绍了实现协议适配器的几个关键技术:与环境无关的虚拟设备描述和封装技术、多线程技术、串口服务器技术、参数可配和远程控制技术。 Protocol adapters play a very important role in the telephone network management system. In this paper, seven modules of protocol adapter are designed from the software: traffic module, alarm module, configuration module, sending module, abnormal module, main control module and secondary control module. The function of each module is described briefly, Several key technologies to implement a protocol adapter: Environment-independent virtual device description and packaging, multithreading, serial server technology, parameter matching and remote control.