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Access control is one of those essential functions that ought to be working at all times. However, like most electronics, it needs the power to operate. There is, of course, the alternative of just using a traditional lock and key
Electricity Power essential for access control!
In this section, we’ll explore why power is needed for access control, and address the two main components that require it: door locks, and the actual access control readers.
Electric Locks Need Electricity
For any modern door that uses an access control system, the lock will be powered by electricity — this is what we call an electric lock. Electric locks fall into two categories: Fail-safe and fail-secure. For a deeper dive into electric lock types.
Fail Safe Locks
Fail-safe locks operate on the principle that as long as power is supplied, the lock is active, and when an unlock is triggered, the power cuts out, and the lock opens. These are generally used for emergency exits, or in situations where if the power is cut out, an exit is still possible. However, this doesn’t mean the power should always be out If the power is out, anyone can get into your space, whether they have access or not.
(a fail-safe magnetic lock)
Fail-secure locks work the other way around: as long as they are not powered, they are active, and when unlocked, the power is turned on, and you can open the door. The need for power is more obvious here: without electricity flowing to the locks, you can’t actually open them.
How Power Loss in a Building Affects Access Control
(a fail-secure lock)(a bolt lock)