Abstract: : This paper introduces work principle, the transmission way, service characteristics, application and principles of fiber optic repeater.
摘要：本文介绍了光纤直放站的工作原理、传输方式、使用特点、应用及原则。
Telegraph repeater. One-way simplex, two-way simplex, or duplex operation can be specified.
电报中继器。可指定为单向单工、双向单工或双工运行。
Telegraph repeater. One-way simplex, two-way simplex, or duplex operation can be specified.
电报中继器。可指定为单向单工、双向单工或双工运行。
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