I have a facility that requires the use of a type of sally port for pairs of doors. It is a manufacturing facility (F1) that requires operational control over hygiene and sterility, so an occupant must enter one side, and have the door close behind them before the next door will open. The lock is magnetic, not mechanical. The power supply to the magnetic lock is interrupted in the event of sprinkler or alarm activation, and there is a push to exit button at the door. This all seems just...
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