LEM-320 | Notifier Loop Expander Module for ONYX Fire Alarm Panels

Notifier · Fire & Life Safety

Description  The NOTIFIER LEM-320 Loop Expander Module provides additional Signaling Line Circuits (SLCs) to compatible ONYX Series Fire Alarm Control Panels. Designed to mount as a daughter board to the LCM-320, it delivers reliable expansion capacity while maintaining system performance and survivability.     Technical Specifications  Condition New/Never Used Surplus Brand Notifier Category Flame Safety Products Part Number LEM-320 Subcategory Flame Safety Amplifier Voltage 24 VDC nominal, 27.6 VDC max Maximum Loop Length Up to 12,500 ft (3,810 m) with 12 AWG twisted unshielded Wire Gauge Support 12 to 18 AWG Maximum Current 100 mA (LEM-320), 130 mA (LCM-320) Maximum Loop Current 400 mA (single loop) Maximum Resistance 50 ohms (supervised & power-limited) Temperature Range 0°C to 49°C (32°F to 120°F) Humidity Range Up to 93% ± 2% RH, non-condensing Certifications UL, ULC, FM, CSFM, FDNY Mounting Daughter board to LCM-320 System Compatibility ONYX NFS2-3030, NFS-640 Wiring Style Class B (Style 4) Weight 0.95 lbs     Information About LEM-320 The LEM-320 is a loop expander module engineered for use with NOTIFIER’s ONYX Series fire alarm control panels. It mounts directly to the LCM-320, enabling the addition of SLC loops for expanded system coverage. This module is compatible with the NFS2-3030 and NFS-640 panels, supporting efficient Class B (Style 4) wiring configurations. Built with plug-in simplicity, the LEM-320 is suitable for fire protection applications where scalable loop capacity is required. Key Features: Loop Expansion: Adds extra SLC loops to compatible LCM-320 modules. Long Wiring Distance: Supports up to 12,500 feet (3,810 m) with 12 AWG twisted unshielded wire. Degraded Mode Operation: Ensures survivability in case of partial system failure. Compact Form Factor: Installs as a daughter board within small enclosures. High Compatibility: Works with NFS2-3030 and NFS-640 control panels. Simple Installation: Plug-in mounting design reduces setup time. UL, FM, and CSFM Approved: Certified for fire protection applications. Reliable Power Performance: Operates at 24 VDC nominal (27.6 VDC max). The LEM-320 delivers the reliability and precision required for modern fire alarm and life safety systems.

Brand: Notifier · Category: Fire & Life Safety

Key features

• Loop Expansion: Adds extra SLC loops to compatible LCM-320 modules.
• Long Wiring Distance: Supports up to 12,500 feet (3,810 m) with 12 AWG twisted unshielded wire.
• Degraded Mode Operation: Ensures survivability in case of partial system failure.
• Compact Form Factor: Installs as a daughter board within small enclosures.
• High Compatibility: Works with NFS2-3030 and NFS-640 control panels.
• Simple Installation: Plug-in mounting design reduces setup time.
• UL, FM, and CSFM Approved: Certified for fire protection applications.
• Reliable Power Performance: Operates at 24 VDC nominal (27.6 VDC max).

Specifications

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