Receiving and sending realization of No.7 signaling system data acquisition card

This paper introduces and analyzes the total scheme and work principle of the No.7 signaling system data acquisition card detailed,according to the whole key taches which concerned in that procedure in receiving and transmitting of L2,it gives all detailed introductions.Through the actual data testing,the data acquisition card can receive,reassemble and resend correctly the cell among No.7 signaling system.Many times measurements of the No.7 signaling system data acquisition card show that the design accords with the requirement of the testing,and has a good effect.