
- Application Note -
Security Enhancements
Sequence of Operation
System Sequence of Events
Objective Equipment List
Apex Technical Support 800-272-7937
Option 1
Page 1-3
¨ Apex Destiny 6100 control panel, rev. 8.05 or greater
¨ System Sensor smoke detectors, 2112/24 AITR
¨ System Sensor RR1 polarity reversal relay module
- Four-wire Smoke Detectors with Sounders -
To activate the sounders
on all four-wire smoke
detectors after any one
smoke detector is
tripped.
After a smoke detector is tripped the control panel will energize the polarity reversal relay
causing the sounders to activate on all four-wire smoke detectors that are connected to the
control panel.
1) A smoke detector trips which activates a fire zone on the control panel.
2) The Fire auxiliary output trigger is programmed to energize the on-board relay which will in
turn energize the polarity reversal relay.
3) When the polarity reversal relay is energized the relay contacts will change position (from
normally closed to normally open). This will reverse the supply voltage going to all four-wire
smoke detectors which will activate the sounders of each smoke detector.
This application will use polarity reversal to
activate sounders on four-wire smoke detectors.
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