20.98
ISS
HD
енглески
Applies to non-multiplexed two wire binary direct voltage signals of nominal 24 V level that are used in industrial-process measurement and control systems to transmit information between elements of systems.
НАПУШТЕН
delSRPS HD 557 S1:2013
20.98
Пројекат се брише из плана рада комисије за стандарде