C&K systems System 236i User Manual page 24

KEYPAD TONE DISABLE (Continued)
To turn the ENTRY/EXIT PRE-ALARM tones (entry/exit delay countdown) on
and off:
Push the
the digit "2", and push the # key.
To turn the CONFIRMATION/ERROR tones on and off:
Push the
the digit "4", and push the # key.
24
key, enter the digit "5",
key, enter the digit "5",
5 2
5 4