How to Troubleshoot Keypad Lockup on DS7400 Series

Probable Cause

The keypad is enabled as an LED keypad

Solution  

 Enter the program mode at the keypad and input the correct sequence to a re-enable it as an alpha keypad. care must be taken, since there will be no visual feedback to verify programming until the keypad is properly enabled.

Part numbers DS7400X, DS7400, DS7400Xi, DS7400XIVER2, DS7400XIVER3+, DS7400XIVER4+, DS7447, DS7447E