本文较全面地分析了三网合一的优势和特点,并从工程造价、运维成本、技术演进等多方面与传统方式进行了比较分析,对首钢迁钢家园采用该系统的主要出发点和理由做了陈述和说明。简要介绍了首钢迁钢家园三网合一及NGN系统。它的投入使用且稳定运行标志着首钢在光接入网应用上,不仅走在了大型国企信息通信专网的前面,同时也走在了专业的电信运营商的前面。 In this paper, the advantages and features of triple play are analyzed in a comprehensive way. Compared with the traditional methods in engineering cost, operation and maintenance costs, technology evolution and other aspects, the main starting point and rationale Made a statement and explanation Briefly introduced the Shougang Qiangang home triple play and NGN system. Its put into use and stable operation marks Shougang in optical access network applications, not only walk in front of a large state-owned enterprise information and communication network, but also walk in front of a professional telecom operators.