FTDM 为基于光纤的时延提供了方便且低成本的解决方案。它通过手动旋钮或计算机 GUI 有选择地将输入光信号路由到多个客户定义的光纤线圈。基于 Photonwares 独特的光纤缠绕和延迟测量技术，它具有低光损耗和高延迟精度的优势。模块正面有一个光纤输入连接器和一个光纤输出连接器以及一个手动延迟时间选择旋钮。后面板有一个墙上电源输入，带有一个开/关开关和一个 USB 计算机接口。提供保偏光纤、高功率处理、信号增强器和高速重新配置选项。

详细规格：

[1]: TBD per customer’s request. [2]: Measured at 4-bit device, excluding the loss of long delay fibers. 1dB additional loss will be added per bit after 4-bit. [3]: for each switching core. [4]: Defined at 4-bit delay line [5]: Measured at 1550nm. [6]: Mount rack height will be determined based the final delay.