大副：当然，现场用的便携式灭火器已经备好，应急关断是否测试，关断信号是否已经商量完毕？

Chief Officer: Sure. Portable extinguishers have been ready on the spot. Have emergency shutdown been tested and signaling has been agreed on?

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在客户终端经解调和解码等处理后，由用户端可寻址控制终端(客户端)执行开通或关断用户电视信号。

At customer terminal station finish undergoing demodulation and decoding, the addressable control terminal station (customer terminal) carry out and offer service or shut off the user TV signal.

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其特征是不要外接偏置电压源，而由一个特殊隔离变换器将输入逻辑信号变换为能快速开通或关断IGBT模块的驱动电力。

Its feature is that the input logical signal is converted to drive power by a special isolated converter, which makes a IGBT module turn on or off quickly, without any other biased voltage sources.

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