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BS 6556-2:1985 Low speed digital signals for use in coal mines. Specification for transformer coupling
standard by BSI Group, 01/31/1985
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Full Description
Defines electrical input and output characteristics of intrinsically safe transmitting and receiving circuits forming a low speed digital data transmission link in which data is transmitted using frequency shift keying techniquesCross References:
BS 229
BS 1259
BS 1442
BS 4683
BS 5501:Part 7
BS 5501:Part 9
BS 5754
BS 6556:Part 1
BS 6556:Part 3
Mines and Quarries Act, 1954
Health and Safety at Work etc. Act 1974