Combination lock on vintage wooden door
The interesting photograph below, is part of Coded Door Lock: Mechanical and Electronic written piece which is sorted within Locks, and published at September 19th, 2016 08:01:05 AM by adminz.
Coded Door Lock: Mechanical and Electronic : Combination Lock On Vintage Wooden Door
Quote from Article entitled Coded Door Lock: Mechanical and Electronic:
The device of a magnetic coded lock is powered by electromagnetic pulses transmitted remotely to the control panel. However, a magnetic lock has its disadvantage. When you disconnect the power source a lock either is blocked or disabled. Therefore, it is important that a magnetic coded lock on a door has its own uninterruptible power supply, or the possibility for manual unlocking.
The full version of the article can be found here.
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