Chapter 4. Manually Programming IDNet Points
4-5
DUCT
Normal = NORMAL
Current-Limited = FIRE
Short = FIRE
Open = TROUBLE
Use with Duct detectors.
VSMOKE
Normal = NORMAL
Current-Limited = VERIFY
Short = FIRE
Open = TROUBLE
If a smoke detector with the function type
VSMOKE enters a current-limited state, the
panel’s alarm verification cycle begins. The panel
starts a delay timer of 30 seconds. When the
timer expires, the zone containing the activated
detector is reset. Following the reset, another 10
second timer starts. When the 10 second timer
expires, the system checks the device for an
alarm. If a current-limited condition exists on the
device, the panel initiates a fire alarm. If no cur-
rent-limited condition exists, the panel starts a 2
minute timer. While the timer is counting down,
any current-limited condition on any other device
will trigger a fire alarm.
A short from a pull-station always triggers an
alarm condition, regardless of the alarm verifica-
tion cycle.
At any stage of the alarm verification cycle, the
presence of two devices in alarm triggers an
alarm condition.
Note:
The VSMOKE function type shall not be
enabled for Canadian applications.
FIRE
Normal = NORMAL
Current-Limited = FIRE
Short = FIRE
Open = TROUBLE
This is a generic fire alarm point type. A typical
application for this point type is a fire alarm
zone containing more than one type of device.
For example, when a combination of smoke
detectors, pull stations, waterflow monitors, and
heat detectors is connected to an IAM or
ZAM, this point type allows alarms to report as
originating from a zone.
Table 4-3 Input Function Types (Continued)
Function
Type
Device State = Status
STYLEC
Normal = NORMAL
Current-Limited = FIRE
Short = TROUBLE
Open = TROUBLE
Style-C Fire Alarm Monitor. Used when only cur-
rent limited devices are connected to the zone. A
short circuit is reported as a Trouble.
SUPV
Normal = NORMAL
Current-Limited = SUPERVISORY
Short = SUPERVISORY
Open = TROUBLE
Used to monitor any supervisory type device
where operator acknowledgment is required.
LATSUPV
Normal = NORMAL
Current-Limited = SUPERVISORY
Short = SUPERVISORY
Open = TROUBLE
Generic supervisory monitor - latches until a sys-
tem reset occurs.
SO
Normal = NORMAL
Current-Limited = SUPERVISORY
Short = SUPERVISORY
Open = TROUBLE
Used to indicate abnormal sprinkler conditions,
such as the opening of a PIV or OS&Y tamper-
switch. Must be used with normally open contacts
only.
WSO
Normal = NORMAL
Current-Limited = SUPERVISORY
Short = FIRE (water flow)
Open = TROUBLE
Combination Waterflow/Sprinkler Monitor (NO).
Where permitted by the AHJ, this circuit
monitors both waterflow sensors and PIV/OS&Y
tampers on the same circuit. All tamper switches
(N.O. contacts) must be connected with a listed
current limiting resistor. A short condition indi-
cates waterflow alarms.
WATER
Normal = NORMAL
Current-Limited = FIRE (water flow)
Short = FIRE (water flow)
Open = TROUBLE
Use with normally open waterflow monitors.
Table 4-3 Input Function Types (Continued)
Function
Type
Device State = Status
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