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What do our words mean?

Word	Explanation
Certified	A certified battery backup is a battery backup that has been tested and meets certain requirements. These requirements may apply, among other things: Capacity of the battery backup: The capacity of the battery must be sufficient to operate the equipment for a certain time in the event of a power failure. Battery life: The battery life must be sufficient to meet the operating time requirements. Safety: The unit must meet the requirements for, among other things, intrusion protection and fire. The certification can be carried out by an independent organization, for example a certification authority or a testing laboratory. Milleteknik uses RiSE for independent certifications of products.
Passage/entrance system	All doors that are connected to a sub-central.
Motherboard	Circuit board in battery backup that controls, distributes and monitors power supply.
IN²C	Communication protocol used to send signals from a battery backup to a UC, sub-central. Signals are what the battery backup warns and alarms about, it can be: power outages, aged batteries, etc.
RS-232	Communication protocol used to send signals from a battery backup to a UC, sub-central. Signals are what the battery backup warns and alarms about, it can be: power outages, aged batteries, etc.
RS-485	Communication protocol used to send signals from a battery backup to a UC, sub-central. Signals are what the battery backup warns and alarms about, it can be: power outages, aged batteries, etc.
Communication	Data via communication protocol to communicate between battery backup and UC.
Efficiency	Efficiency in a power supply is a measure of how efficiently it converts electric current 230 V to 12 V/ 24 V / 48 V. The efficiency is stated in percent, and a high efficiency means that less energy is lost as heat. Power supplies with an efficiency of at least 80% are usually considered efficient. Power supplies with an efficiency of over 90% are usually considered very efficient. A high efficiency has several advantages, including: Lower electricity consumption: A high degree of efficiency means that less energy is lost as heat. This can lead to lower electricity bills. Lower heat development: A high degree of efficiency also means that the power supply unit develops less heat. This can lead to the power supply being smaller and quieter. Longer lifespan: A high efficiency means that the power supply unit wears out less. This can lead to a longer lifespan of the power supply.
EN54	EN54 is a series of European standards that apply to fire detection and fire alarm systems. The standards define requirements, test methods and performance conditions for components of fire detection and fire alarm systems and provide guidance on how such systems are designed.
Fuses	Fuse on load or mains.
HE	Height units in 19" rack. 1 HE=43.7 mm.
Imax A	Imax A means that it is the maximum amperes that the battery backup can handle, which is almost always the same as the A designation in the product name. For example, NOVA 24V 10A FLX M has Imax A 10A.
Imax B	Imax B means that it is the maximum amperes with which batteries are charged. ImaxB is always slightly less than ImaxA as a certain power loss occurs to drive the unit.
In my	Imin means that it is the minimum ampere that the device can deliver and in practical terms this means that Imin is always 0 ampere.
Door environment	Lock plate, door handle and card reader, i.e. what is required for a door to function in an access system.
Battery backup	Milleteknik's product that converts 230 V to 12 V / 24 V or 48 V to power security applications. Synonyms: Battery backup, rectifier, power supply, central unit.
Central unit	Milleteknik's product that converts 230 V to 12 V / 24 V or 48 V to power security applications. Synonyms: Battery backup, rectifier, power supply, central unit.
Rectifier	Milleteknik's product that converts 230 V to 12 V / 24 V or 48 V to power security applications. Synonyms: Battery backup, rectifier, power supply, central unit.
Reserve power	Milleteknik's product that converts 230 V to 12 V / 24 V or 48 V to power security applications. Synonyms: Battery backup, rectifier, power supply, central unit.
Power supply	Milleteknik's product that converts 230 V to 12 V / 24 V or 48 V to power security applications. Synonyms: Battery backup, rectifier, power supply, central unit.
NC/COM/NO	NC, COM and NO are abbreviations for contacts on electrical components. NC: Normally closed, or normally closed. This contact is closed when the power is off. COM: Common. This connector is connected to both sides of a circuit. NO: Normally open, or normally open. This contact is open when the power is off.
Insurance card	Security card.
Security application	Shell protection in a property such as an access system or alarm system, surveillance camera, etc.
SSF	Swedish Security Association (SSF)
EN54-4	The EN54 series consists of different parts, which deal with different aspects of fire detection and fire alarm systems where EN54-4 applies to Fire Alarm Control Panels.
Power supply unit	The power supply unit is the part of the device that converts the alternating current in the wall outlet into the various forms of electricity, in terms of voltage, current and frequency, that the various constituent components need.
Switched power supplies	These power supplies use more complex circuitry to convert alternating current to direct current. They are more efficient than linear power supplies, but they are also more expensive and more complex to manufacture.
UC, Subcentral	The system that keeps track of all the doors in an access system. Several of Milleteknik's battery backups can communicate with a sub-central.
UPS	Uninterruptible Power Supply, reserve power that provides 230 V and which kicks in when there is a mains interruption.
Power outage	When the power grid goes down.