Low speed digital signals for use in coal mines. Specification for message protocols.
NORM herausgegeben am 31.1.1985
Designation standards: BS 6556-3:1985
Publication date standards: 31.1.1985
The number of pages: 26
Approximate weight : 78 g (0.17 lbs)
Country: British technical standard
Kategorie: Technische Normen BS
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. Status: Confirmed