Honeywell NOTIFIER LEM-320 Loop Expander Module
- Brand: Honeywell NOTIFIER
- Model: LEM-320
- Type: Loop Expander Module
- Function: Expands Addressable SLC Loop Capacity
- Compatibility: Designed to work with the LCM-320 Loop Control Module
- Application: Intelligent Addressable Fire Alarm Systems
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Product Description
The Honeywell NOTIFIER LEM-320 Loop Expander Module is designed to expand the signaling line circuit (SLC) capacity of compatible NOTIFIER ONYX Series fire alarm control panels. It works in conjunction with the Loop Control Module (LCM-320) to provide additional addressable loop capacity, allowing the fire alarm system to support more intelligent field devices. These devices may include addressable smoke detectors, heat detectors, monitor modules, control modules, and other compatible components used for fire detection, alarm signaling, and system supervision. By expanding the available loop capacity, the LEM-320 helps accommodate larger fire alarm installations with multiple addressable devices distributed throughout a building or facility.
Designed for commercial buildings, industrial facilities, healthcare institutions, educational campuses, and infrastructure projects, the LEM-320 supports the expansion of compatible NOTIFIER addressable fire alarm systems. Its integration with the appropriate loop control hardware helps the system communicate with connected devices and monitor their operating status. The module is intended for use in supported NOTIFIER ONYX configurations, including compatible NFS2-3030 and NFS-3030 systems. Before installation or replacement, confirm the control panel model, required loop control module, system configuration, and compatibility details using the manufacturer’s technical documentation to ensure proper operation.
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Features of Honeywell NOTIFIER LEM-320 Loop Expander Module
- Adds an extra SLC loop to compatible NOTIFIER ONYX systems.
Expands the NFS-640 from one loop to two.
Expands the NFS2-640 from one loop to two.
Adds loops to compatible LCM-320 modules in NFS-3030 and NFS2-3030 systems.
Uses a plug-in design for easy installation.
Includes a degraded-mode feature for improved system reliability.
Supports SLC wiring distances up to 12,500 ft (3,810 m) with specified cable.
Supports 12–18 AWG twisted, unshielded wiring.
Operates at a nominal voltage of 24 VDC.
Has a maximum specified current draw of 100 mA.
Connects compatible addressable devices to the added loop.
Supports supervised SLC wiring.
Uses a supervised, power-limited circuit design.
Adds loop capacity within compatible control panels.
Has applicable UL/ULC, FM, CSFM, and FDNY approvals.
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Specifications of Honeywell NOTIFIER LEM-320 Loop Expander Module
| Specification | Details |
|---|---|
| Brand | Honeywell NOTIFIER |
| Model | LEM-320 |
| Product Type | Loop Expander Module |
| Primary Function | Adds an SLC loop in compatible fire alarm control panel configurations |
| Compatible Control Panels | NOTIFIER NFS-640, NFS2-640, NFS-3030, NFS2-3030, as applicable |
| Operating Voltage | 24 VDC nominal |
| Maximum Voltage | 27.6 VDC |
| Maximum Current Draw | 100 mA |
| Maximum SLC Loop Current | 400 mA per loop |
| Maximum Loop Length | Up to 12,500 ft (3,810 m) with 12 AWG twisted-pair cable in specified Class B configuration |
| Wiring Type | Twisted, unshielded pair |
| Supported Wire Gauges | 12–18 AWG |
| Maximum Loop Resistance | 50 ohms, subject to wiring style |
| Installation Type | Plug-in module |
| Degraded Mode | Built-in |
| Expansion on NFS-640 / NFS2-640 | Adds a second SLC loop |
| Expansion on NFS-3030 / NFS2-3030 | One LEM-320 can expand each compatible LCM-320 |
| Operating Temperature | 0°C to 49°C (32°F to 120°F) |
| Relative Humidity | 93% ± 2% RH, non-condensing at 32°C ± 2°C |
| Approvals Listed in Manufacturer Datasheet | UL, ULC, FM, CSFM, FDNY and selected regional approvals; verify current applicability |
| Typical Applications | Commercial buildings, industrial facilities, and infrastructure fire alarm systems |
NOTIFIER LEM-320 Supplier in Dubai UAE
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NOTIFIER LEM-320 Part Numbers / Available Configurations
| Part Number | Product / Configuration |
|---|---|
| LCM-320 | NOTIFIER Loop Control Module — adds additional Signaling Line Circuits (SLCs) to compatible NFS-3030 and NFS2-3030 fire alarm control panels. |
| LEM-320 | NOTIFIER Loop Expander Module — expands an LCM-320 loop on compatible NFS-3030/NFS2-3030 panels; also adds a second loop to compatible NFS-640/NFS2-640 panels. |
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NOTIFIER LEM-320 Loop Expander Module Related Products/Accessories
| Product / Accessory | Description |
|---|---|
| NOTIFIER LCM-320 Loop Control Module | Loop control module that supports an additional SLC and can accept a compatible LEM-320 expansion module in supported configurations. |
| NOTIFIER NFS-640 Fire Alarm Control Panel | Compatible ONYX Series panel that can be expanded from one SLC loop to two using the LEM-320. |
| NOTIFIER NFS2-640 Fire Alarm Control Panel | Compatible intelligent control panel that supports a second SLC loop through the LEM-320. |
| NOTIFIER NFS-3030 Fire Alarm Control Panel | ONYX Series control panel that supports LCM-320 modules and associated LEM-320 loop expansion. |
| NOTIFIER NFS2-3030 Fire Alarm Control Panel | Intelligent fire alarm control panel that supports loop expansion using compatible LCM-320 and LEM-320 modules. |
| NOTIFIER Addressable Smoke Detectors | Compatible detectors that communicate with the fire alarm control panel through the SLC loop. |
| NOTIFIER Addressable Monitor Modules | Modules for monitoring compatible initiating devices and dry-contact inputs. |
| NOTIFIER Addressable Control Modules | Modules that provide compatible control functions for designated fire alarm equipment. |
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Honeywell NOTIFIER LEM-320 Resources
| NOTIFIER LEM-320 Technical Datasheet: |  |
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Gulf Safety Supplies is a trusted supplier of Fire and Life Safety Products in Dubai, UAE, specializing in Honeywell NOTIFIER fire alarm solutions. We aim to provide competitive prices for Honeywell NOTIFIER Fire Alarm Control Panels and Accessories in Dubai, Saudi Arabia, Oman, Qatar, Bahrain, Kuwait, Iraq, Egypt, Congo, Ghana, Nigeria, Tanzania, and Uganda.
Our product range includes Addressable Fire Alarm Control Panels, Smoke Detectors, Heat Detectors, Manual Call Points, Audible and Visual Alarm Devices, Monitor Modules, Control Modules, Remote Annunciators, and Fire Alarm System Accessories. These products support fire detection, alarm notification, and system monitoring in commercial buildings, industrial facilities, hospitals, hotels, and other applications.
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