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NEC开发出使用现行有线电视(VBS—AM)方式,最大可以传输150个频道图像信号的光缆传输设备。它的优点是不需要重新安装调制解调设备,从而降低此系统的成本。 此设备可安装在小型机架里,每个机架最多可安装4个光
NEC has developed a cable transmission equipment that can transmit image signals of up to 150 channels using the existing VBS-AM method. Its advantage is that it does not require the reinstallation of a modem to reduce the system cost. The device can be installed in a small rack with up to 4 lights per rack