Gate
Typically, a door that is outdoors.
General Protection Fault
An operating system fault that occurs whenever a program executes a command that the operating system considers
dangerous to the operating system. When a GPF is generated, the program that generated the GPF is closed and
control is returned to the operating system.
Global Unlock
A normally-open input that, when closed, generates a signal that unlocks all doors in the access control
system.
Ground
1) An electrical connection with a ground potential point.
2) An electrical connection to a circuit's zero voltage reference point. See Earth Ground.
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