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本文介绍了包头市区建设1550nm光纤环网的方案:环形环网和树形环网相结合.A环和B环采用的是环形环网,特点是冗余性、可靠性好.C环由于路由原因,部分只能采用单路环的方案,优点是易于扩展和隔离故障.此方案解决了包头市区光纤入户数字电视信号的传输问题.
This article describes the construction of 1550nm fiber-optic ring network project in Baotou City: ring ring and the tree ring network combination .A ring and B ring ring network is characterized by redundancy, reliability is good .C ring due to The reason of routing is that some of them can only adopt the scheme of single ring, which has the advantage of easy expansion and isolation of faults.This solution solves the transmission problem of optical fiber digital home television signal in Baotou.