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中国铁路分组交换网一期工程已经结束,由美国SPRINT公司引进的分组交换设备TP4956,TP4944,TP8010组成的分组交换网已准备进入正式运营状态。各种计算机用户,如车号刷新管理信息系统CMIS,货车实时追踪管理信息系统TMIS,计划统计管理信息系统SMIS及无线寻呼等各类系统用户将相继入网。因此,各级电务维护部门对于该网的维护管理工作将进入重要议事日程。分组交换对于电务系统来说是一项新技术,因此,维护及故障处理的仪表和手段极为重要。根据目前全路仪表配置情况,大致分为两
The first phase of China’s railway packet switching network has come to an end. The packet switching network consisting of the packet switching equipment TP4956, TP4944 and TP8010 introduced by the US SPRINT Company is ready for formal operation. A variety of computer users, such as license plate refresh management information system CMIS, truck real-time tracking management information system TMIS, planning and statistical management information system SMIS and wireless paging and other types of system users will have access to the network. Therefore, the maintenance departments at all levels for the network maintenance and management work will enter an important agenda. Packet switching is a new technology for the power system, so the instruments and tools for maintenance and troubleshooting are extremely important. According to the current configuration of the entire road instrument, roughly divided into two