3 ms·
What is the failure model when the power goes? Do you fail safe (unlocked) or fail secure (locked)?
by MattPalmer1086 4y ago
What is the failure model when the power goes? Do you fail safe (unlocked) or fail secure (locked)?
- vbezhenar 4y agoFor safes you of course keep it locked. But provide some hidden wires to power the lock if battery died. Of course you should think about protecting electronics from something like megavolt put on those wires, but it's doable and with enough iterations all weak spots should be fixed.
- 323 4y agoYou could put the power (battery) inside the key. Like a car key fob.