VSC8150在波分复用系统开销提取中的应用

波分复用系统将不同波长的光复用在一起进行传输,以满足对传输容量和传输距离的各种需求。介绍了一种开销监视与提取的设计方法,使用VSC8150提取承载在波分复用系统相应波长上SDH信号的开销。分析了VSC8150的工作原理,管脚和外部接口,以及与FPGA、单片机共同完成B1重新计算,开销提取,B1,J0提取。此外,还提出将帧丢失,帧失步等错误状态传送给单片机和网管的方法。本设计增强了波分复用系统网管管理参数,功能和灵活性,这会在系统维护时带来较大的方便。该设计已经成熟应用在实际的波分复用系统中。

Application of VSC8150 in WDM Overhead Extraction

For satisfy the capacity and distance in transmission,we use WDM system which can multiply multi-wavelength into one fiber.In this paper a method which monitors SDH overhead with VSC8150,including the VSC8150 operation theory,interface with single chip computer and FPGA.Frame lost and frame out-of-step are sent to the wrong state of sigle chip computer and network management.Overhead and error status can be acquired and transferred to network management.This can add the function and flexibility of network management.The design is applied in practical WDM system reliably.