Notifier FZM-1. Intelligent Interface Module.

Bridge Conventional Detectors with Intelligent Panels

The FZM-1 is an intelligent two-wire zone interface module designed to connect a loop of conventional initiating devices to an intelligent fire alarm control panel. This allows existing or legacy devices—such as 2-wire smoke detectors—to be integrated into modern, addressable systems without needing a complete overhaul.

Seamless Integration with System Sensor Panels

The FZM-1 communicates directly with System Sensor and compatible intelligent control panels via the signaling line circuit (SLC). As a result, it allows the panel to monitor the status of all connected conventional devices as if they were addressable. This not only extends the life of existing hardware, but also reduces upgrade costs and installation time.

Supervision and Compatibility

The module provides full supervision of wiring, devices, and power to the connected zone. It monitors for open circuits, short circuits, and ground faults, helping ensure reliable system operation at all times. Additionally, the FZM-1 supports a wide range of UL-listed conventional detectors and initiating devices, offering maximum flexibility in system design.

LED Status Indicators and Easy Setup

A built-in LED provides clear visual indication of module status, including normal operation, trouble, or active alarm. Furthermore, the device is easily mounted in standard electrical boxes and connects via terminal screws, simplifying both installation and service.

Applications Across Retrofit and Expansion Projects

The FZM-1 is ideal for retrofit applications where replacing all devices is not practical. It is also useful in system expansions where new addressable panels need to support existing conventional zones. Consequently, it provides a cost-effective path to upgrade while maintaining NFPA and UL compliance.

UL-Listed and Code-Compliant

Fully UL 864 listed, the FZM-1 meets industry standards for fire alarm system components. Therefore, it is a dependable and compliant solution for integrating legacy detection zones into intelligent life safety systems.