目 录
摘要 .......................................................................................................................I
Abstract.................................................................................................................II
第 1 章 绪论.........................................................................................................1
1.1 课题背景 ...............................................................................................1
1.2 电话交换的国内外研究状况及发展趋向...........................................1
1.2.1 电话交换机的国内外研究状况....................................................1
1.2.2 电话交换机的发展趋向................................................................1
1.3 本课题研究的主要内容......................................................................1
第 2 章 程控交换机基本原理.............................................................................1
2.1 程控交换机的分类...........................................................................1
2.1 .1 按接续方式分...........................................................................1
2.1 .2 按信息传送方式分...................................................................1
2.2 程控交换机的系统组成...................................................................1
2.3 用户接线口电路...............................................................................1
2.4 出入中继器.......................................................................................1
2.4 .1 模拟中继接口单元....................................................................1
2.4 .2 数字中继接口单元
2.5 交换网络...........................................................................................1
2.5 .1 空分交换网络............................................................................1
2.5 .2 时分交换网络............................................................................1
2.6 控制设备...........................................................................................1
2.7 PCM 原理 .........................................................................................1
2.7 本章小结...........................................................................................1
第 3 章 硬件电路设计.........................................................................................1
3.1 系统主要芯片....................................................................................1
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