MVI56-DFCM

接口的工作模式 以太网卡可以工作在两种模式下：半双工和全双工。 半双工：半双工传输模式实现以太网载波监听多路访问冲突检测。传统 的共享LAN是在半双工下工作的，在同一时间只能传输单一方向的数据。当两个方向的数据同时传输时，就会产生冲突，这会降低以太网的效率。 全双工：全双工传输是采用点对点连接，这种安排没有冲突，因为它们 使用双绞线中两个独立的线路，这等于没有安装新的介质就提高了带宽 。例如在上例的车站间又加了一条并行的铁轨，同时可有两列火车双向 通行。在全双工模式下，冲突检测电路不可用，因此每个全双工连接只 用一个端口，用于点对点连接。标准以太网的传输效率可达到50%～60% 的带宽，全双工在两个方向上都提供100%的效率。

MVI56-DFCM

联系人：郭先生
联系电话：18971415643《优先》
座机：027-83238871
传真：207-61537051
QQ：810334512《优先》

MVI56-DFCM

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