this post was submitted on 19 Feb 2024
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[–] lemann@lemmy.dbzer0.com 4 points 10 months ago* (last edited 10 months ago)

Not the commenter you replied to, but these kinds of systems are usually "fail open": if there is unexpected loss of power (including the locking mechanism connection to the controller being interrupted), the door is released/unlocked, and can be opened manually by users.

Some more complex systems will have specific doors automatically shut in the event of a fire to try and keep it contained, depending on local regulations. These doors can still be manually re-opened, but they will not "catch" or latch open until the system fault is resolved

Edit: add clarity