程控交换机七号信令系统电话用户部分的开发研究

Research and Development of Telephone User Part in No. 7 Signalling System

在介绍ＫＹ１０００ＸＭ程控交换机系统结构的基础上，给出了采用半呼叫模型对七号信令电话用户部分（ＴＵＰ）的ＳＤＬ（软件描述语言）图进行重新设计的方法，提出了在该机上实现ＴＵＰ的进程调度法，并描述了软件及数据结构，最后对软时钟生成提出了一些设想。

Based on the introduction of the system structure of KY1000 XM SPC exchange machine, this paper proposes some changes to CCITT No. 7 signalling telephone user part (TUP) SDL chart, presents a processive schedule method to realize the TUP of No. 7 signalling system. The software and data structure are given, and the software time generator is also concerned.