Issue
The keypad on the DS7400 panel is beeping once every 10 seconds for no apparent reason.
Solution
For the DS7400XI VER.1 panel
For all other DS7400XI panels VER. 2, 3, and 4
Part numbers DS7400X, DS7400, DS7400Xi, DS7400XIVER2, DS7400XIVER3+, DS7400XIVER4+, DS7447, DS7445