产品描述
同向G.703(Co-Directional G.703)接口将64Kbps周期分成为4个单位间隔它以0101表示〝0〞1100表示〝1〞通过交替变换相邻码组的极性把二进制信号转换成三电平信号并通过在每第8组破坏码组的极性交替从而来传送8KHz的定时信号。
通过以上编码处理 G.703同向64K bps信号就能实现把64KHz和8KHz的定时信号和64Kbit/s的数据信号在同一个传输方向上用一对平衡线传输。本系列设备提供1个同向G.703接口和1个以太网接口,能够实现10/100base-T以太网数据在同向G.703通道上的传输,是一种高性能、自学习式以太网桥。该设备作为以太网的延伸设备,利用现有网络(PDH/SDH/微波等)所提供的同向G.703通道,以较低的成本实现两端以太网互联。设备内置环路测试功能,为工程开通和日常维护提供便利。
Performance figures, data and any illustrative material provided in this data sheet are typical and must be specifically confirmed in writing by F-tone Networks before they become applicable to any particular order or contract. In accordance with the F-tone Networks policy of continuous improvement specifications may change without notice.
The publication of information in this data sheet does not imply freedom from patent or other protective rights of F-tone Networks or others. Further details are available from any F-tone Networks sales representative.
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