媒体网关系统中的主备倒换设计改进方案  

Standby design scheme in media gateway

作　　者：李春雨[1] 

机构地区：[1]浙江机电职业技术学院,浙江杭州310053

出　　处：《微型机与应用》2016年第24期40-41,49,共3页Microcomputer & Its Applications

摘　　要：在基于m TCA规范的媒体网关系统中,两块主控制板要求热备份,当一块主控板故障时,另一块主控板需自动升主,替代故障板。对现有的主备倒换方案进行了分析,并改进了现有方案,该方案通过高低温老化测试,工作可靠。In the media gateway system based on mTCA architecture, hot backup is required between two pieces of main control board. When one main control board has fault, the other main control board automaticly works as active main board, and replaces the fault board. This arti- cle has carried on the analysis to the existing scheme of main standby switch, and improved the existing schemes. The scheme was passed in high and low temperature aging test. It is reliable.

关 键 词：媒体网关 CPLD 主备倒换 热交换 主控板 背板 

分 类 号：TN79[电子电信—电路与系统]