论文部分内容阅读
苏联邮电部的专家已设计了一种供大城市用的新型数字交换机系统(ESS—DSN),容量为30000门,采取32kbps话路速率,系统结构以及用户网路都大为简化,便于实现全网数字化,这将是新一代的数字程控交换机.
The Soviet Union’s Ministry of Posts and Telecommunications has designed a new digital switching system (ESS-DSN) for large cities with a capacity of 30,000 gates and a 32 kbps speech rate. The system architecture and subscriber networks are greatly simplified and easy to implement Network digital, it will be a new generation of digital program-controlled switches.