HD8623程控交换综合实验讲义

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1、HD8623程控交换综合实验讲义目录第一章HD8623系统模块实验..............................................................................................1实验1交换系统组成与结构..........................................................................................1*实验2HD8623电源模块...............

2、.................................................................................7实验3管理控制模块CPLD可编程器件......................................................................9实验4CPU中央系统处理器............................................................................

3、............12实验5用户接口模块（主被叫）实验........................................................................14实验6程控交换状态设置............................................................................................19实验7信令信号的产生与观测......................................

4、..............................................22实验8双音多频（DTMF）接收与检测.....................................................................25实验9话路PCMCODEC编译码............................................................................30实验10呼叫处理与线路信号的传输过程...........

5、.........................................................33实验11二/四线变换与回波返损测试...........................................................................36*实验12用户终端电话信号电平调整..........................................................................40第二章信令交换与信息交换..

6、.............................................................................................42实验13人工及信号交换实验......................................................................................42实验14空分交换的过程与分析..................................................

7、................................45实验15时分交换网络基本原理..................................................................................51实验16数字时分复用与中继传输实验......................................................................54*实验17数字时分（T）接线器编程方法....................

8、................................................58*实验18局内数字交换实验..........................................................................................63*实验19时间调度表与事件调度..........