17-3 SONET帧 每个同步传输信号STS-n由8000个帧组成.每个帧是 个90×n列、9行的二维矩阵. Topics discussed in this section: 帧、字节和位传输Frame,Byte,and Bit Transmission STS-1帧格式STS-1 Frame Format 封装Encapsulation 17.1017.10 17-3 SONET帧 每个同步传输信号STS-n由8000个帧组成. 每个帧是 个90 × n 列、9行的二维矩阵. 帧、字节和位传输 Frame, Byte, and Bit Transmission STS-1帧格式 STS-1 Frame Format 封装 Encapsulation Topics discussed in this section: