北京地铁5号线通信方案研究

Research on Communication Scheme of Beijing Metro Line 5

北京地铁5号线通信系统除传输、无线通信系统外的公务电话、专用电话、闭路电视监视、广播、时钟、通信电源及接地、通信设备集中监测告警等共7个子系统介绍。

The paper introduces other 7 subsystems of service telephone, special telephone, closed-circuit television （CCTV） surveillance, broadcasting, clock, communication power supply and the earthing, and centralized monitoring alarm of communication equipment than transmission and radio communication systems of Beijing Metro Line 5 communication system.