衡水市区城域采用光纤到楼（rrrB）的技术方案构建，为将来拓宽带宽资源、开展交互式业务提供了平滑的技术升级基础。通过分析计算FTTB和FTTC在不同传输距离下的光接收机输入功率，确定光接收机输入功率标准为：FTTB光接收机输入功率为（-3±1）dB；nTrC光接收机输入功率为（-2±1）dB，为工程施工制定了严格统一的标准，并为工程竣工验收提供依据。%The land network of urban area city of Hengshui adopts the optic fiber to the floor （FTFB ） Con- strueting scheme, it offers for widening bandwidth resources, launching the interactive business in future to be smooth. The determination of the input power of the mere receiver is that the construction has put forward the strict and unified standard, offer the feasible basis for final acceptance of construction of the project.
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