C&K systems System 236 Manual page 24

DURESS ALARM
OPTION
INSTALLED
Should an intruder force you to turn your security system off or on, you can
send a silent DURESS signal to our central station by entering User Code 6 -
a code designated exclusively for a DURESS signal. Your system will appear
to be operating normally. There is no indication of an alarm condition.
DURESS ALARM
OPTION
INSTALLED
Should an intruder force you to turn your security system off or on, you can
send a silent DURESS signal to our central station by entering User Code 7 -
a code designed exclusively for a DURESS signal. Your system will appear
to be operating normally. There is no indication of an alarm condition.
24
(Available on Systems 236i ONLY)
(Available on Systems 238i and 2316i ONLY)