【摘要】 介绍了一种基于VXI总线的155M/622M ATM/POS宽带测试系统。该设备主要由接口单板和一块信元(包)产生/分析单板组成,配合相应的单板软件和终端软件,分别实现155M/622M线速下ATM/POS宽带设备的物理层告警和OAM测试以及ATM层/LINK层测试功能。该设备基于VXI总线开发,采用了高速电路设计、大规模可编程逻辑器件、嵌入式实时操作系统等技术,是国内首例基于VXI总线的622M ATM/POS测试仪。更多还原

【Abstract】 Presented in this paper is a 155M/622M ATM/POS broadband network test system based on VXI bus. The equipment is composed of an ATM/POS interface board and an ATM cell (POS packet) generating/analysis board with the corresponding software. It performs the tests for physical layer operation and maintenance and ATM layer/POS抯 LINK layer test at a speed up to 622MHz. The equipment is developed on VXI bus,designed with high-speed digital circuit,large-scale FPGA and real-time operating system. It is the first 622M ATM/POS broadband network test system based on VXI bus in China.更多还原