Honeywell Notifier CPS-24E Fire Alarm Power Supply Board

Honeywell Notifier CPS-24E Fire Alarm Sub-Assembly Power Supply

The Honeywell Notifier CPS-24E is the core primary power conversion sub-assembly board engineered specifically for the Notifier AMPS-24E Addressable Power Supply System. Operating on a nominal 220–240 VAC line input, the CPS-24E delivers stable, filtered, and regulated DC power to fire alarm control panels (FACPs), auxiliary notification appliances, and secondary battery charging circuits.

Designed for demanding commercial, industrial, offshore, and marine vessel applications, this sub-assembly handles primary line rectification, transient surge suppression, brownout detection, and battery charge regulation. Whether used to service an active marine safety console or replace a compromised board in an ONYX Series panel (NFS-3030 / NFS2-3030), each CPS-24E unit is bench-tested under continuous load conditions to guarantee drop-in operational readiness.

Model Details

• Manufacturer: Honeywell Notifier
• Sub-Assembly Model: CPS-24E (220–240 VAC European / International / Marine version)
• Parent Assembly Model: AMPS-24E (Addressable Power Supply Charger)
• Manufacturer Part Number (MPN): CPS-24E / AMPS-24E Sub-Assembly (Motherboard interconnect: AMPS-K2)
• Hardware Revision: Compatible with all AMPS-24E revision cycles

System Compatibility

• Host Control Units: Notifier NFS2-3030, NFS-3030, NFS-640, and NCA-2 Network Control Annunciator.
• Network & Distribution Modules: Digital Voice Command (DVC-EM), DS-DB, and DAA2 Series Digital Audio Amplifiers.
• Host Power Assembly: Mounts directly as the primary switching board over the AMPS-K2 interface chassis within the AMPS-24E enclosure.
• Backboxes: Fits standard CAB-4 Series (CAB-A4, B4, C4, D4), EQ Cabinet Series, BB-25, BB-100, and BB-200 battery enclosures.

Part Number Cross-References

• Honeywell Notifier: CPS-24E, AMPS-24E, 51907 (AMPS-24 series doc series)
• 120V Counterpart Model: CPS-24 (integrated into AMPS-24 assemblies)
• Related Fuse Part Number: Notifier P/N 12117 (8A, 250V AC Ceramic)

Key Features

1. Universal 220–240 VAC Efficiency: Specifically built for international line voltages and isolated shipboard auxiliary power grids without requiring external step-down transformers.
2. Multi-Stage Intelligent Battery Charger: Charges 7 Ah up to 200 Ah SLA backup banks with user-selectable current limiting (1A / 2A / 5A) and integral thermal-runaway protection.
3. Advanced Power-Limited Auxiliary Rails: Supplies filtered 24 VDC (0.5 A) and 5 VDC (0.15 A) power directly to secondary sub-modules via TB2.
4. Built-in Circuit Supervision: Features active brownout detection, AC loss time delay reporting, battery lead disconnection detection, and ground-fault monitoring.
5. Modular Field Servicing: Detachable modular sub-board layout allows rapid replacement without rewiring the entire AMPS-K2 chassis backplane.

Applications

• Marine vessels, cargo ships, tankers, and FPSO central fire detection panels running 220V/230V 50/60 Hz ship service grids.
• Offshore oil & gas platforms and refining facilities requiring NFPA 72 and FM-approved fire suppression automation.
• High-rise commercial, healthcare, and educational facilities utilizing Notifier ONYX Series networked FACPs.
• Emergency Voice Alarm Communications (EVAC) systems powering remote distributed audio amplifiers (DAA2/DAX).

Frequently Asked Questions

What is the difference between the Notifier CPS-24 and CPS-24E?

The standard CPS-24 is engineered for 120 VAC (50/60 Hz) operations, standard in North American installations. The CPS-24E is the European and international variant designed to accept 220–240 VAC (50/60 Hz), making it suitable for international shore facilities, offshore platforms, and marine shipboard power distribution systems.

Can the CPS-24E board be used as a standalone power supply without the AMPS-K2?

No. The CPS-24E functions as the primary high-voltage rectification and power transformer sub-assembly. It is designed to work in conjunction with the AMPS-K2 motherboard assembly, which provides the SLC interface, control logic, FlashScan communications, and main output terminal splitters.

What size fuse is used on the CPS-24E AC input?

The AC line input (TB1) utilizes an 8.0 Amp, 250 VAC, 5×20 mm fast-acting ceramic fuse (Honeywell Notifier Part Number: 12117). Always replace blown fuses with high-breaking ceramic variants; standard glass-body fuses must not be substituted.

What causes an AC Fail or Brownout trouble on the CPS-24E?

An AC Fail or Brownout condition is flagged when input line voltage drops below acceptable operating thresholds (typically below 85% of nominal 220–240 VAC). If line voltage measures normally at TB1, the onboard optoisolator or input bridge section may have sustained electrical spike damage, requiring board replacement.

Can the CPS-24E charge 200 Ah battery banks?

Yes. When properly configured within the AMPS-24E assembly, the secondary charging circuit can charge sealed lead-acid batteries ranging from 7 Ah up to 200 Ah. When using maximum charge currents, ensure total simultaneous auxiliary DC output loads do not exceed rated system limits.