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美国《Providence Journal》杂志的记者和编辑们从他们的新闻电缆电视的辅助系统中,基本上有了一条专用馈线,这是新安装的单模光纤超级干线的成果。这条多信道的光缆把Colony通信联合公司总部和离开1.5英里左右的《Providence Journal》杂志的行政办公室连接起来。该杂志社拥有Colony通信公司,它是美国第33家最大的电缆电视公司。光缆中有二根9/125μm的光纤,提供的容量为16信道,无中继距离达22km。据Conn.,Meriden的Pirelli光电子系统公司销售经理Dale Delancey透露,光缆中信号的信噪比为
Reporters and editors of the Providence Journal magazine in the United States basically have a dedicated feeder from the auxiliary system of their news cable television, the result of the newly installed single-mode fiber super trunk. The multichannel cable connects Colony Communications’ corporate headquarters to the administrative office that leaves Providence Journal, about 1.5 miles away. The magazine owns Colony Communications, the nation’s 33rd largest cable television company. There are two 9 / 125μm optical fibers in the cable, providing a capacity of 16 channels and a repeater distance of 22km. According to Conn., Dale Delancey, sales manager at Meriden’s Pirelli Optoelectronics Systems, said that the signal-to-noise ratio of a signal in an optical cable is