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美国Thoman ＆ Betts公司研制出一条有效传输范围为425英尺的无中继光纤传输线路。这种新线路采用一根新型的低损耗塑料光纤和一只高灵敏接收检测器。据报导,这条称为数据信道的新型光纤传输线路在现场安装可不用附加工具,而是依靠在以数字形式作双向数据传输的两个站之间采用一个简单的 RS 232 C插座。该数据信道包含一只将电信号转换为光信号的发光二极管,和一只将光信号还原为电信号的
Thoman & Betts, USA, has developed a trunkless fiber optic transmission line with an effective transmission range of 425 feet. The new line uses a new low-loss plastic optical fiber and a highly sensitive receiver detector. The new fiber optic transmission line, reportedly called a data channel, has reportedly been installed on site with no additional tools and instead relied on a simple RS 232 C receptacle between two stations that digitally make bidirectional data transmissions. The data channel includes a light-emitting diode that converts an electrical signal to an optical signal and a light-emitting diode that reverts the optical signal to an electrical signal