Low speed digital signals for use in coal mines. Specification for message protocols.
NORMA vydaná dňa 31.1.1985
Označenie normy: BS 6556-3:1985
Dátum vydania normy: 31.1.1985
Počet strán: 26
Približná hmotnosť: 78 g (0.17 libier)
Krajina: Britská technická norma
Kategória: Technické normy 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