Function type
HEAT
DUCT
PULL
SMOKE
SO
WSO
SUPV
UTIL
TROUBLE
VSMOKE
See note
LATSUPV
page 21
2008 Foundation Series Fire Alarm Control Unit Operation Guide
Table 8: IDC function types
Device state = status
Normal = NORMAL
Current Limited = FIRE
Short = FIRE
Open = TROUBLE
Normal = NORMAL
Current Limited = FIRE
Short = FIRE
Open = TROUBLE
Normal = NORMAL
Current Limited = FIRE
Short = FIRE
Open = TROUBLE
Normal = NORMAL
Current Limited = FIRE
Short = FIRE
Open = TROUBLE
Normal = NORMAL
Current Limited = SUPERVISORY
Short = SUPERVISORY
Open = TROUBLE
Normal = NORMAL
Current Limited = SUPERVISORY
Short = FIRE
Open = TROUBLE
Normal = NORMAL
Abnormal = SUPERVISORY
Short = SUPERVISORY
Open = TROUBLE
Normal = OFF
Abnormal = ON
Short = ON
Open = TROUBLE
Normal = NORMAL
Abnormal = TROUBLE
Short = TROUBLE
Open = TROUBLE
Normal = NORMAL
Abnormal = VERIFY
Short = FIRE
Open = TROUBLE
Normal = NORMAL
Abnormal = SUPERVISORY
Short = SUPERVISORY
Open = TROUBLE
Description
Heat detector zone
Duct detector zone
Pull station zone
Smoke detector zone
Sprinkler supervisory zone
Combination waterflow and water
supervisory zone
Supervisory monitor
Supervised utility monitor
Trouble monitor
Verified fire alarm – The abnormal (current
limited) state causes the alarm verification
cycle to start.
A short is an immediate alarm.
Latching supervisory monitor
The supervisory latches until the system is
reset.
579-1401 Rev A
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