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C&C08数字程控交换机系统由一个管理/通讯模块(AM/CM)和多个交换模块(SM)组成。RSMⅡ是一个典型的交换模块(SM),它利用标准的E1(2Mbit/s)接口通过内部七号信令方式带混装B模块(UTM)或A模块,通过现有的传输系统,延伸距离可达50公里。方便本地网建设,适于撤点并网,使网络结构更加合理,符合邮电部关于本地网“少局点、大容量”的建议。
C & C08 digital program-controlled switch system consists of a management / communication module (AM / CM) and a number of switching modules (SM). The RSM II is a typical switch module (SM) that uses a standard E1 (2 Mbit / s) interface with a hybrid B module (UTM) or A module via internal SS7 signaling to extend the distance through existing transmission systems Up to 50 kilometers. Convenient local network construction, suitable for withdrawal and grid connection, the network structure is more reasonable, in line with the Ministry of Posts and Telecommunications on the local network “less sites, large capacity ” proposal.