With the discussions of requirement of modularization and testing bus for Synthesis Instrument,and the characteristic of LXI,the Synthesis Instrument based LXI bus was discussed.

• 本文了论述合成仪器的概念、特点,通过阐述合成仪器对模块化结构和测试总线的性能需求,以及LXI总线的技术特点,论述了采用LXI总线构建合成仪器的合理性。