深井地震综合观测中信息系统井下传感器采用数字输出方式，与地面仪器之间基于RS-422方式进行通信；基于Linux操作系统，编写与井下传感器通信控制软件及符合相关行业标准的对外服务软件，并进行相关实验，验证方案的现实可行性。

 The sensors of information system in multi-component earthquake instrument for deep borehole used digital output, and they communicated with ground instrument via RS-422. Based on the Linux operating system, we write the software that communicated with borehole sensors and external services software that comply with the relevant industry standards. We conducted a series of experiments to verify its feasibility.