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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 ...