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Ｓ１２４０ＤＳＮ连接规则与ＣＥ地址码的关系兰州铁道学院王吉吉１ＤＳＮ的基本组成数字交换网（ＤＳＮ）是Ｓ１２４０交换机的中心，所有的终端模块都要通过ＤＳＮ交换信息．ＤＳＮ由选面级交换器ＡＳ和选组级交换器ＧＳ两部分组成．ＡＳ和ＧＳ均由结构完全相同的数字交...
S1240DSN connection rules and CE address codes Lanzhou Railway Institute Wang Ji 1DSN basic composition Digital Switching Network (DSN) is the center of the S1240 switch, all terminal modules to exchange information through the DSN. The DSN consists of two parts, the AS switch and the GS switch. AS and GS are composed of exactly the same number of digital ...