由测量与测试行业提出的传统总线在自动化测量中发挥了重要作用,但随着LAN网络技术发展,传统测试总线未能充分利用网络技术进行测量的不足逐渐显现；采用由计算机行业提出的新型总线LXI正是针对传统测试技术的不足,尤其是在分布式测量系统,LXI发挥了重要作用；介绍了新型总线LXI触发技术,重点介绍IEEE- 1588,给出基于以太网的最大吞吐量理论值为94.9％,利用OPNET仿真软件对网络扩容性能做了简单分析,在业务增加一倍时,网络服务器负载也增加100％.%Traditional bus technology introduced by T&.M has played an important role in automatic measurement, however, with the development of network technology, Traditional bus failed to make full use of network technology measurement appeared gradually. The new bus LXI introduced by computer industry has overcomed traditional bus insufficience, especially in.the distributed system; LXI has played an important role. This paper has introduced new bus trigger technology, focused on IEEE- 1588, showed max throughput 94. 9% based on Ethernet, and maked analysis on network expansion through simulation software OPNET, when traffic increase double, the load of network server also increase nearly 100% .
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