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.Cross References:BS 5397BS 5754BS 6556:Part 1BS 6556:Part 2Mines and Quarries Act, 1954Health and Safety at Work etc. Act 1974
BS 6556-3:1985
Original price was: $264.16.$132.00Current price is: $132.00.
Low speed digital signals for use in coal mines-Specification for message protocols
BSI Group , 01/31/1985
Pages: 26



