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Homepage>BS Standards>29 ELECTRICAL ENGINEERING>29.260 Electrical equipment for working in special conditions>29.260.20 Electrical apparatus for explosive atmospheres>BS 6556-3:1985 Low speed digital signals for use in coal mines Specification for message protocols
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immediate downloadReleased: 1985-01-31
BS 6556-3:1985 Low speed digital signals for use in coal mines Specification for message protocols

BS 6556-3:1985

Low speed digital signals for use in coal mines Specification for message protocols

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Standard number:BS 6556-3:1985
Pages:26
Released:1985-01-31
ISBN:0 580 14232 9
Status:Standard
DESCRIPTION

BS 6556-3:1985


This standard BS 6556-3:1985 Low speed digital signals for use in coal mines is classified in these ICS categories:
  • 29.260.20 Electrical apparatus for explosive atmospheres
  • 35.020 Information technology (IT) in general

Specifies the message protocols employed with intrinsicaly safe transmitting and receiving circuits forming low speed digital data transmission links in which the data is transmitted by optical or transformer couplings.
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