China Narrow band power li GB Standards Search Result

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	GB/T 31983.31-2017 Narrow band power line communication over low-voltage mains—Part 31：Narrow band orthogonal frequency division multiplexing power line—Communication physical layer specification 低压窄带电力线通信第31部分：窄带正交频分复用电力线通信物理层规范 - 中英文版
	GB/T 31983.11-2015 Narrow band power line communication over low-voltage mains—Part 11: 3 kHz to 500 kHz frequency bands and classifications, limits of output level and electromagnetic disturbances 低压窄带电力线通信第11部分：3 kHz～500 kHz频带划分、输出电平和电磁骚扰限值 - 中英文版

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