Abstract: Above all,in order to realize the infrasonic array,the signal transmission problem should be resolved firstly.A data collecting and transmission in Ethernet system based on the S3C2410X,a kind of ARM micro- processor of 32 bits,and the serial A/D converter TLC2400 and the applications of TCP/IP embedded in the tailored Linux is presented.The principle of system and the design of the main peripheral interface and the frame of software design are given also.