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signaleringsstelsel (imports. brussels, m., and r. polle)
signaleringsstelsel (imports. brussels, m., and r. polle)
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机译:signaleringsstelsel(进口。布鲁塞尔,米和r。polle)
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摘要
A dial pulse receiver forms part of a pool of receivers provided in common for a plurality of incoming junctors, each receiver output being tested by a computer every 14 milliseconds. The receiver prevents spurious signals shorter than a predetermined duration which are applied at its input from reaching its output. The receiver is also adapted to automatically detect the accidental connection of the AC mains to a subscriber line.
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