Monitor Point Types,
Continued
A-13
S2STAGE
Used for 2-stage alarms. The current limited operation of any device indicates a Stage 1
Alarm. A short on the point’s circuit, such as a key switch operation, causes a Stage 2 Alarm.
SO
Used to indicate abnormal sprinkler conditions, such as the opening of a PIV or OS&Y tamper
switch. This point type must be used with normally open contacts only.
WSO
Combination Waterflow/Sprinkler Monitor (NO). Where permitted by the AHJ, this circuit
operates both waterflow monitors and PIV/OS&Y tampers on the same circuit. All tamper
switches (N.O. contacts) must be connected with a current limiting resistor. Refer to the
AUTOPULSE Z-28 field wiring diagrams. A short condition indicates waterflow alarms.
SUPDET
Suppression (Agent Discharge) monitor.
Continued on next page
Circuit Status
LCD Display
System Status
Normal
Normal
Limited
2 Stage Monitor
Stage 1 Alarm
Open
2 Stage Monitor
Open Trouble
Short
2 Stage Monitor
Stage 2 Alarm
Circuit Status
LCD Display
System Status
Normal
Normal
Limited
Sprinkler Monitor
Abnormal
Open
Sprinkler Monitor
Open Trouble
Short
Sprinkler Monitor
Abnormal
Circuit Status
LCD Display
System Status
Normal
Normal
Limited
Sprinkler Monitor
Abnormal
Open
Sprinkler Monitor
Open Trouble
Short
Sprinkler Monitor
Waterflow Alarm
Circuit Status
LCD Display
System Status
Normal
Normal
Limited
Suppression Detector
Fire Alarm
Open
Suppression Detector
Open Trouble
Short
Suppression Detector
Fire Alarm