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Small-Scale Question Sunday for May 21, 2023

Do you have a dumb question that you're kind of embarrassed to ask in the main thread? Is there something you're just not sure about?

This is your opportunity to ask questions. No question too simple or too silly.

Culture war topics are accepted, and proposals for a better intro post are appreciated.

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This is correct. Even on older models the control panel is highly configurable by the owner/operator. The primary purpose of the firefighter key/code is to unlock full control of the panel for emergency services or a technician. In the US most of them will be in a rather restricted configuration considering our special mix of idiocy and litigiousness.