What Is the Notifier ONYX Series?
The Notifier ONYX Series is Honeywell’s flagship line of intelligent fire alarm control panels, trusted by fire alarm contractors and facilities managers across healthcare, commercial, industrial, and high-rise applications. ONYX panels are built around Notifier’s FlashScan protocol, which polls addressable devices at speeds up to 3.9 seconds per loop — far faster than conventional systems.
Whether you’re maintaining an NFS2-3030 in a hospital complex or keeping an NFS-320 running in a mid-size commercial building, sourcing the right replacement parts quickly is critical to maintaining life safety compliance. This guide covers the most important Notifier ONYX panel components available at Life Safety Consultants’ Notifier parts store.
Key Notifier ONYX Panels
NFS2-3030 — Large-Capacity FACP
The NFS2-3030 is the most widely deployed large-capacity fire alarm control panel in North America. It supports up to 3,030 addressable points per node, networked up to 103 nodes for a total of 312,000+ devices — making it ideal for airports, hospitals, campuses, and high-rises.
Common replacement parts for the NFS2-3030 include:
- CPU boards – The central processing unit manages all addressable loops, network communications, and system logic
- Power supply boards – Provides regulated DC power to the panel and battery charging
- Network interface cards (NCA-2) – Enables peer-to-peer networking between NFS2-3030 nodes
- Display assemblies – LCD displays and backlit keypads for operator interface
- Battery backup assemblies – Sealed lead-acid batteries to maintain operation during power outages
NFS-320 — Mid-Range FACP
The NFS-320 serves mid-size facilities with up to 318 addressable points on a single SLC loop. It’s a popular choice for schools, small commercial buildings, and retail centers. Replacement components include CPU boards, power supply modules, and loop driver cards.
NFS-3030 — Legacy Large Panel
The NFS-3030 predecessor to the NFS2-3030 remains in service across thousands of facilities. We maintain a stock of legacy boards and modules to support ongoing maintenance of these systems.
Critical Replacement Parts for ONYX Panels
Main CPU Boards
The CPU board is the brain of any Notifier ONYX panel. When a CPU fails due to power surges, age, or component failure, the entire panel goes offline. We stock OEM Notifier CPU boards for the NFS2-3030, NFS-3030, and NFS-320 to get your system back online quickly.
Power Supply Modules
Notifier power supply boards provide 24VDC regulated power to the panel chassis and connected field devices. NFPA 72 requires a minimum of 24 hours of standby power, so a functioning power supply with healthy batteries is non-negotiable for code compliance.
SLC Loop Cards
Signaling Line Circuit (SLC) loop driver cards interface the panel with addressable field devices. Each loop card typically supports up to 159 addressable detectors and modules. Replacement loop cards restore communication to entire device groups when the primary card fails.
Network Cards (NCA-2)
For networked ONYX systems, the NCA-2 Network Control Annunciator serves as both a network node interface and remote operator panel. Replacement NCA-2 units are essential spare parts for any facility running a multi-node Notifier network.
Tips for Ordering Notifier ONYX Parts
- Record your panel firmware version before ordering CPU or SLC boards — some replacement parts require matching firmware revisions
- Check your panel label for the exact model number (NFS2-3030 vs. NFS-3030 vs. NFS-320) since boards are not interchangeable
- Verify battery capacity when replacing power supplies — the replacement must meet or exceed the original’s backup capacity rating
- Order an AHJ inspection after replacing any main panel board — most jurisdictions require re-acceptance testing
Shop Notifier ONYX Panel Parts at Life Safety Consultants
Life Safety Consultants stocks hundreds of genuine Notifier replacement components with same-day shipping on in-stock items. Our team includes NICET-certified fire alarm technicians who can help you identify the exact board or module your system needs.
Browse our complete Notifier parts catalog →
Can’t find the part you need? Contact us and our team will source it for you.
