Descriptors | Control systems, Automatic control systems, Industrial, Physical layer (OSI), Open systems interconnection, Data transmission, Data processing, Bus networks, Computer networks, Interfaces (data processing), Computer terminals, Data circuit-terminating equipment, Signal level, Messages, Coding (data conversion), Waveforms, Reception, Test equipment, Circuit properties, Circuits, Electrical impedance, Electrical resistance, Attenuation, Electric connectors, Dimensions, Electric cables |