Flex 402 & Flex 404 Instruction Manual — P/N 52194:D4 3/27/2015 35
DIP Switch Settings Program Options via DIP Switch
IDC1 Supervisory for Flex 402 or IDC2 Supervisory for Flex 404
Switch 4, placed in the ON position, programs IDC #1 on the Flex 402 or IDC #2 on the Flex 404
as a Supervisory circuit. A supervisory zone can be used for monitoring supervisory devices such
as sprinkler tamper switches. A supervisory activation will pulse the piezo sounder at a ½ second
rate and flash the zone supervisory LED at the same rate. The factory default setting is switch 2
OFF for no Supervisory.
IDC2 Verification for Flex 402 or IDC3 Verification for Flex 404
Switch 5, placed in the ON position, selects the Verification feature for IDC #2 on the Flex 402 or
IDC #3 on the Flex 404. The factory default setting is switch 5 OFF for no Verification. Refer to
“IDC1 Verification (Flex 404 only)” on page 34 for a description of this feature.
IDC2 Supervisory for Flex 402 or IDC3 Supervisory for Flex 404
Switch 6, placed in the ON position, programs IDC #2 on the Flex 402 or IDC #3 on the Flex 404
as a Supervisory circuit. A supervisory zone can be used for monitoring supervisory devices such
as sprinkler tamper switches. A supervisory activation will pulse the piezo sounder at a ½ second
rate and flash the zone supervisory LED at the same rate. The factory default setting is switch 6
OFF for no Supervisory.
IDC4 Verification (Flex 404 only)
Switch 7 only on the Flex 404, placed in the ON position, selects the Verification feature for IDC
#4. The factory default setting is switch 7 OFF for no IDC4 Verification. Refer to “IDC1 Verifica-
tion (Flex 404 only)” on page 34 for a description of this feature.
IDC4 Supervisory (Flex 404 only)
Switch 8 only on the Flex 404, placed in the ON position, programs IDC #4 as a Supervisory cir-
cuit. A supervisory zone can be used for monitoring supervisory devices such as sprinkler tamper
switches. A supervisory activation will pulse the piezo sounder at a ½ second rate and flash the
zone supervisory LED at the same rate. The factory default setting is switch 8 OFF for no IDC4
Supervisory.
3.1.3 SW3 DIP Switch Settings
NAC1 Nonsilenceable
Switch 1, placed in the ON position, programs NAC #1 as a nonsilenceable circuit. Selecting this
feature will prevent the notification appliances on NAC #1 from being silenced by the Autosilence
feature or by pressing the Alarm Silence button. The factory default setting is switch 1 OFF for
silenceable circuit.
NAC1 Disable
Switch 2, placed in the ON position, will disable NAC #1, preventing the notification appliances
from activating. This feature may be used during maintenance or while testing the system to pre-
vent building evacuation. The FACP will indicate an NAC disabled fault and system trouble while
this feature is selected. The factory default setting is switch 2 OFF for NAC1 enabled.
NAC2 Nonsilenceable (Flex 404 only)
Switch 3 only on the Flex 404, placed in the ON position, programs NAC #2 as a nonsilenceable
circuit. Selecting this feature will prevent the notification appliances on NAC #2 from being
silenced by the Autosilence feature or by pressing the Alarm Silence button. The factory default
setting is switch 3 OFF for silenceable circuit.
NAC2 Disable (Flex 404 only)
Switch 4 only on the Flex 404, placed in the ON position, will disable NAC #2, preventing the noti-
fication appliances from activating. This feature may be used during maintenance or while testing
the system to prevent building evacuation. The FACP will indicate an NAC disabled fault and sys-
tem trouble while this feature is selected. The factory default setting is switch 4 OFF for NAC2
enabled.
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