Terminology and Standards

Topic	Comment
IEC 60073	"The light indication is designed with the principles of IEC 60073 for coding indicators and controls in mind"
Blinking frequency	"Slow blinking is about 0.4 Hz; fast blinking is about 1.6 Hz"
ISO 24500	"The sound signals are designed with the principles of ISO 24500 for accessible sound signals of consumer devices in mind"
BLE	"Bluetooth Low Energy, hereinafter BLE"
UHF RFID	"UHF RFID is radio-frequency identification in the ultra-high-frequency band"
UHF RAIN	The same as UHF RFID
Inventory	RFID tag reading mode
DFU	"DFU (Device Firmware Update) is the device firmware update mode".
Ship mode	"Deep power-saving mode for storage or transportation of the device"
SECURED	"Protected device state"; the main device state in its usage lifecycle.