模拟SDH帧结构，设计了状态机，能从连续传输的SDH字节流中找出帧头；从SDH字节流中，提取E2字节，并按照64K速率分别串行输出E2码流及时钟；设计了输入信号，输出包括E2串行数据、E2串行时钟和SDH帧头位置指示-Analog SDH frame structure, a state machine, the continuous transmission of SDH byte stream to find the header SDH byte stream, extract E2

SDH transmission and switching performance has free combination of function blocks composed through its family of devices, to achieve a variety of different levels and network topology is very flexible