Questions · Access control
Which lock do I fit on each door: strike, magnetic lock or motorised?
An electric strike on ordinary passage doors that already have a frame and a lock; an electromagnetic lock when there is nowhere to house a strike, the leaf is glass or it weighs a lot; and a motorised lock when the bolt really has to be thrown and holding the leaf is not enough.
The practical difference between the three is what they do with no power. The electromagnetic lock always releases, because with no electricity there is no magnet. The strike can be one of the kind that opens when the power goes or one of the kind that closes, and they are two different parts that have to be ordered correctly. That is why choosing the hardware comes after another decision and not before: first you decide how that door has to end up, and then you buy what does it.
And there is a mechanical part that gets underestimated. A door that rubs, that has no closer or that closes badly leaves the strike unable to engage, and the system reports the door open all afternoon until somebody decides to silence that alert for good. A good part of the faults on an access control system are joinery, not electronics.
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