When engaged the Link senses a presence or absence of signal at the input and depending on conditions, places the unit into standby mode.
当从事链接感官的业务或没有信号的输入和有关情况而定，进入待机模式的地方单位。
The main topic of this paper is selection of redundant link, strategy of primary-standby detection and switch smoothly.
本文重点介绍了冗余链路的选择、主从判决的策略及无损切换。
All serial links and communications equipment, shall be provided on a dual redundant basis, such that failure of a single component or link will effect a seamless transfer to standby equipment.
所有串行连接口和通讯设备应提供双线，当发生单一部件或连接故障时可直接转换至备用设备。
All serial links and communications equipment, shall be provided on a dual redundant basis, such that failure of a single component or link will effect a seamless transfer to standby equipment.
所有串行连接口和通讯设备应提供双线，当发生单一部件或连接故障时可直接转换至备用设备。
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