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进网话机检验将执行新国标邮电部自1996年8月1日起对进网电话机的检验执行新的国标,即GB/T15279-94《自动电话机技术条件》。该标准采用国际通用的响度评定值取代原参考当量,并用48V馈电桥取代60V馈电桥,增加了电磁兼容(EMC)和抗雷击指标...
Incoming telephone testing will be implemented in the new national standard Ministry of Posts and Telecommunications since August 1, 1996 on the implementation of the test of incoming telephone implementation of the new national standard, that GB / T15279-94 “automatic telephone technical conditions.” The standard uses internationally accepted loudness rating to replace the original reference equivalent, and replace the 60V feeder bridge with a 48V feeder bridge, increasing electromagnetic compatibility (EMC) and lightning resistance ...