他是一个SDH上行代码，有八个模块组成的，能够传输以太网的数据 ,He is an SDH uplink code, there is composed of eight modules, Ethernet can transmit data

SDH是现代光纤通信中广泛应用的数据传输格式,在SDH帧结构中，前9列为开销字节，它包含了很多重要的信息，本程序为SDH开销的接收处理，查找帧头，分频，勤务话字节E1异步fifo。可拆为三段源代码，不知道能不能抵三个程序-SDH is a modern optical fiber communication is widely used in data transmission format, in the SDH frame structure, as the former 9 overhea

完成从SDH　telecom bus的38Mhz*4系统时钟和复帧提取出SDH的telecom bus的C1j1,spe,au指针　，H4位置等SDH帧结构-SDH telecom bus from 38Mhz* 4 the system clock and rehabilitation SDH frame to extract the telecom bus of C1j1, spe, au pointer, H4 location SDH frame structure

从sdh数据流中找到相应的帧，并将其帧头按照另一码率输出。-From the SDH data stream to find the corresponding frame, and another header in accordance with the output bit-rate.