基本速率接口

现有程控交换机的ISDN基本速率接口

ISDN Basic Rate Access Interface for Existing Switching Systems

该设备可以看作是一个提供了丰富线路资源的通用硬件平台，它提供至多8个基本速率接口或其中任意几个基本速率接口的任意组合，为不同的高层应用服务。

The multi BRI device can be looked upon as a universal hardware platform with plenty of line resource that can supply not more than 8 independent BRIs or random combinations of these 8 BRIs for various high layer applications .

基于所介绍的基本速率用户网络接口，设计了一种用于基本速率用户网络接口的时基发生电路，分析了整个时基模块，包括所产生时基的优、缺点。

The time base module is detailed and the advantage and disadvantage of the produced time base are analyzed .

本文主要描述为交换机提供（2B+D）基本速率入口的ISDN接口的结构。

This paper describes an interface architecture of ISDN basic rate access interface ( 2B + D ) for existing switching systems .