DALI, or Digital Addressable Lighting Interface, is smart wired lighting control standard,owned and operated by Digital Illumination Interface Alliance (DiiA). It have wide interoperability in control, configuration & querying of devices.It works with max.64 addresses on each subnet, with max 250mA bus power supply as standard.
Emergency lighting works in emergency situation when the main power supply is cut and normal electrical illumination fails. The loss of mains electricity could be the result of a fire or a power cut. Without emergency lighting this could lead to sudden darkness and possible danger to occupants, either through physical danger or panic.
After the emergency lighting fixtures is determined by architects or engineers, we have consider their maintenance, specially in the integration with Building Management Systems (BMS) or Building Automation System (BAS).Emergency lighting types are relative as maintained or non-maintained.