![HOW-TO] Powered dual-switch door (when the door is open, toggling either switch will close it and vise versa). Prevents all NPCs from opening. : r/fo4 HOW-TO] Powered dual-switch door (when the door is open, toggling either switch will close it and vise versa). Prevents all NPCs from opening. : r/fo4](https://preview.redd.it/54qom5tyvu081.png?auto=webp&s=d15fc224de19e131a41c739e13fc60c93ad73aa4)
HOW-TO] Powered dual-switch door (when the door is open, toggling either switch will close it and vise versa). Prevents all NPCs from opening. : r/fo4
![Decoded: Auto Operators - Stand-By Power - I Dig Hardware - Answers to your door, hardware, and code questions from Allegion's Lori Greene. Decoded: Auto Operators - Stand-By Power - I Dig Hardware - Answers to your door, hardware, and code questions from Allegion's Lori Greene.](http://idighardware.com/wp-content/uploads/2011/04/Bathroom-Door-1.jpg)
Decoded: Auto Operators - Stand-By Power - I Dig Hardware - Answers to your door, hardware, and code questions from Allegion's Lori Greene.
![PSA: You can use the XOR logic gate and a Siren to keep your settlement open normally, but closed and locked down during an attack. : r/fo4 PSA: You can use the XOR logic gate and a Siren to keep your settlement open normally, but closed and locked down during an attack. : r/fo4](https://external-preview.redd.it/cNNX2qhc7Iz4-d5sJfAy7lS3jejB_EHCi403qPoYp5w.jpg?auto=webp&s=edc12c2102fac28c7d43f5a14db02dbb26fd1728)