Fire alarm systems—and the people they protect—depend on consistent, regulated voltage to operate properly. Honeywell’s PS Series remote power supplies can deliver filtered 24 VDC power and can be independently configured as output circuits. These units also supply constant or resettable auxiliary power designed to support four-wire smoke detectors, annunciators, door holders and other fire alarm accessories that require regulated power. 

• Output circuits allow mixed Class B and Class A configurations within a single unit
• Filtered 24 VDC output can maintain stable voltage for sensitive detection and notification equipment
• Auxiliary power outputs support both constant-power and resettable applications for system flexibility

Effective fire safety systems require coordinated operation across multiple subsystems. The PS Series integrates with any UL 864 fire alarm control panel utilizing industry-standard reverse-polarity notification circuits. The units support UL-Listed notification appliance circuit (NAC) synchronization using System Sensor, Wheelock, Gentex or AMSECO appliances, and can be configured for American National Standards Institute (ANSI) Temporal 3 or Temporal 4 coded output.

Power sizing mistakes can lead to code violations, expensive redesign costs and installation delays. The Connected Life Safety Services (CLSS) Tool Suite consolidates battery calculations, voltage drop calculations and dB line loss into a single desktop application designed to help plan fire safety system installations. The tool performs fire alarm panel and power supply battery calculations based on NFPA 72 requirements for 24-hour standby plus alarm duration, helping determine appropriate battery capacity and power supply configuration.