Switches controlling power, including mains switches, show their on and off positions either with the IEC 60417 on and off symbols or by a nearby indicator light or some other unambiguous method; bistable push buttons carry the stand-by-type symbol and their state is shown by an adjacent light or other unambiguous means, momentary push buttons the momentary symbol or a state indication; control and switch positions are shown with numbers, letters or another visual method, and where changing a setting in normal use could create unacceptable risk to the patient the control is paired with an indicator, or shows which way the setting is changing; numeric indications are in SI units per ISO 80000-1 except the listed permitted units (degree, minute, hour, day, litre, mmHg, cmH2O, bar, electron volt and the like). Compliance is checked by inspection together with the 7.1 tests.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.