程控交换机与载波机的接口电路  

The Interface Circuit of PABX to Carrier

作　　者：袁文江[1] 

机构地区：[1]中国电子科技集团公司第五十四研究所,河北石家庄050081

出　　处：《计算机与网络》2008年第16期65-67,共3页Computer & Network

摘　　要：随着程控数字交换机在各个领域的广泛应用,在某些功能上的局限性也暴露出来,需要设计转换电路来保证正常运行。介绍一种程控数字交换机与载波机的接口电路。阐述了接口的组成及其工作原理,并对关键电路进行详细的说明。该接口已作为 HARRIS20-20程控数字交换机的配套产品出售,性能可靠稳定。As the PABX has a wide range of applications in various fields, it exposes some functional limitations,resulting conversion circuit designed to ensure its normal operation.This paper presents a kind of interface circuit of PABX to Carrier. In the paper, the composition and working principles of this interface are expatiated and the key circuit is explained detailedly.The interface circuit has been saled as a supporting product of HARRIS 20-20 PABX, with a reliable performance and stability operation.

关 键 词：程控数字交换机 载波机 磁石电话 

分 类 号：TN916.428[电子电信—通信与信息系统]