1单根光纤内的级联多路回传通道在典型的光纤深入(Fiber Deep)网络设计中,来自4、8或12个光节点的数字化回传通道可以汇聚在一起,共同分享回传带宽。这样就节约了大量的先期成本,因为接收机的数量和它们需要的空间和功率要求都会大大降低。每个光节点都支持5～45MHz回传 1 Cascaded Multiplexed Return Paths in a Single Fiber In a typical Fiber Deep network design, digital return paths from 4, 8, or 12 optical nodes can be brought together to share the return bandwidth . This saves a lot of up-front costs because the number of receivers and the space and power requirements they require can be significantly reduced. Each optical node supports 5 ~ 45MHz return