1. Introduktion
This manual provides essential information for the proper installation, operation, and maintenance of the Notifier LEM-320 Loop Expander Module. The LEM-320 is designed to expand the capacity of compatible fire alarm control panels by providing additional Signaling Line Circuits (SLCs).
2. Sikkerhedsoplysninger
Always observe the following safety precautions during installation, operation, and maintenance of the LEM-320 module:
- Installationen skal udføres af kvalificeret personale i overensstemmelse med alle lokale og nationale el-forskrifter.
- Disconnect all power sources before installing or servicing the module.
- Håndter elektroniske komponenter forsigtigt for at forhindre skader forårsaget af elektrostatisk udladning (ESD).
- Sørg for korrekt jording for at forhindre elektriske farer.
- Refer to the main fire alarm control panel manual for system-specific safety instructions.
3. Produktet er slutview
The Notifier LEM-320 is a Loop Expander Module designed to interface with a compatible Loop Control Module (LCM-320) to extend the system's capacity for addressable devices. It functions as a daughter board, providing additional even-numbered Signaling Line Circuits (SLCs) to the fire alarm control panel.

Figur 3.1: Top view of the Notifier LEM-320 Loop Expander Module, showing various integrated circuits and components.

Figur 3.2: Vinklet view of the Notifier LEM-320 module, highlighting the component layout and connection points.

Figur 3.3: Bund view of the Notifier LEM-320 module, showing the circuit board traces and mounting points.
4. Installation
The LEM-320 module is designed to be mounted as a daughter board onto a compatible Notifier LCM-320 Loop Control Module. Follow these steps for proper installation:
- Forberedelse: Ensure all power to the fire alarm control panel is disconnected. Refer to the LCM-320 manual for specific power-down procedures.
- Find monteringsposition: Identify the designated mounting headers on the LCM-320 board for the LEM-320 daughter board.
- Juster modul: Carefully align the connectors on the LEM-320 with the corresponding headers on the LCM-320. Ensure correct orientation to prevent damage.
- Sikkert modul: Gently press the LEM-320 into place until it is firmly seated. Use any provided standoffs or screws to secure the module to the LCM-320, if applicable.
- Bekræft forbindelser: Double-check that all connections are secure and that the module is properly seated.
- Opstart: Restore power to the fire alarm control panel according to the manufacturer's instructions.
- Systemkonfiguration: Configure the fire alarm control panel to recognize the newly installed LEM-320 module and its associated SLCs. Refer to the control panel's programming manual for detailed instructions.
Note: Improper installation can lead to system malfunction or damage. Always consult the specific documentation for the LCM-320 and the main fire alarm control panel.
5. Betjening
The Notifier LEM-320 Loop Expander Module operates as an integral part of the fire alarm control panel system. Once properly installed and configured with the LCM-320, it extends the system's capacity by providing additional Signaling Line Circuits (SLCs).
- SLC Expansion: The LEM-320 enables the connection of more addressable fire alarm devices (e.g., smoke detectors, heat detectors, manual pull stations, monitor modules) to the system.
- Meddelelse: It facilitates communication between the connected SLC devices and the main fire alarm control panel via the LCM-320.
- Systemintegration: The module's operation is fully integrated with the control panel's software, allowing for centralized monitoring and control of all connected devices.
No direct user interaction is typically required with the LEM-320 module itself after initial installation and system configuration. Its function is to provide the necessary hardware expansion for the fire alarm system.
6. Vedligeholdelse
The Notifier LEM-320 module is designed for reliable, long-term operation with minimal maintenance. However, periodic inspection and adherence to general electronic component care practices are recommended:
- Visuel inspektion: Undersøg modulet regelmæssigt for tegn på fysisk skade, løse forbindelser eller overdreven støvophobning.
- Rensning: If necessary, gently clean the module using a soft, dry, lint-free cloth. Avoid using liquids or abrasive cleaners. Ensure power is disconnected before cleaning.
- Miljøforhold: Ensure the module operates within the specified environmental conditions (temperature, humidity) of the fire alarm control panel enclosure.
- Systemtest: Regular testing of the entire fire alarm system, including all connected SLC devices, should be performed by qualified technicians as per local codes and manufacturer guidelines.
Forsigtighed: Do not attempt to repair the module yourself. Refer all servicing to qualified Notifier service personnel.
7. Fejlfinding
If the fire alarm system experiences issues related to SLC communication or device recognition after the LEM-320 installation, consider the following troubleshooting steps:
- Power Check: Verify that the fire alarm control panel has stable power and that the LCM-320 is powered correctly.
- Modulpladser: Ensure the LEM-320 is securely seated on the LCM-320's connectors. Re-seat the module if necessary (with power disconnected).
- Ledningsintegritet: Check the wiring of all SLC devices connected to the expanded loops for shorts, opens, or incorrect connections.
- Systemkonfiguration: Confirm that the fire alarm control panel's programming correctly recognizes the LEM-320 and the expanded SLCs. Verify device addressing.
- LED-indikatorer: Observe any diagnostic LEDs on the LCM-320 or the main control panel for error codes or status indications. Refer to the respective manuals for interpretation.
- Se manualer: Always refer to the specific troubleshooting sections of the LCM-320 manual and the main fire alarm control panel manual for detailed diagnostic procedures.
If issues persist, contact Notifier technical support or a certified fire alarm technician.
8. Specifikationer
| Feature | Detalje |
|---|---|
| Modelnummer | LEM-320 (Part Number: NLEM320) |
| Fabrikant | MEDDELELSE |
| Fungere | Loop Expander Module for LCM-320 |
| Montering | Daughter board to LCM-320 |
| Varens vægt | 2 pund |
| Batterier påkrævet | Ingen |
| Batterier medfølger | Ingen |
| Pakkemængde | 1 |
9. Garanti og support
For warranty information regarding the Notifier LEM-320 Loop Expander Module, please refer to the official Notifier warranty statement provided with your product or available on the Notifier webGarantibetingelserne dækker typisk defekter i materialer og udførelse under normal brug.
For technical support, service, or to report issues, please contact your authorized Notifier distributor or Notifier technical support directly. Ensure you have your product model number (LEM-320) and any relevant system information ready when contacting support.
Notifier Contact Information:
Please visit the official Notifier webwebstedet for de seneste kontaktoplysninger og supportressourcer. www.notifier.com





