数字用户环路增容系统中的同步拨号方式

The Synchronized Dialling Mode in a Digital Loop Pair Gain System

用户环路增容系统是近年来用于缓解用户环路设施紧缺的一个重要手段.在这种系统中实现脉冲式同步拨号有助于改善服务质量.研究了同步拨号的实现方式以及系统容量与同步拨号方式之间的关系.

The loop pair gain system has been recently developed as an important measure to increase the capacity of the existing loop facilities. The synchronized dialling mode implemented in this kind of system will be benificial to improve the service quality of the system. This paper presents the implementation of the synchronized dialling mode and the contraining relations between this dialling mode and the capacity of the system.