1. Introduction
The Notifier NCM-F is a Network Control Module specifically designed for multi-mode fiber optic communication within a Notifier fire alarm network system. This module facilitates reliable data exchange between various network nodes, including but not limited to CPU-640/3030, NCA, CPU2-640/3030, NCA-2, and DVC units. For proper network functionality, one NCM-F module is required for each network node that utilizes multi-mode fiber connectivity.
2. Setup and Installation
Proper installation of the NCM-F module is crucial for system integrity and performance. Follow these steps carefully.
2.1 Safety Precautions
- Power Disconnection: Always ensure that power to the host fire alarm control panel or network node is completely disconnected before attempting any installation or removal of the NCM-F module.
- Electrostatic Discharge (ESD) Protection: The NCM-F is a static-sensitive device. Wear an anti-static wrist strap and work on an approved anti-static mat to prevent damage from electrostatic discharge. Avoid touching the circuit board components directly.
2.2 Unpacking the Module
Carefully remove the NCM-F module from its anti-static packaging. Retain the packaging for future storage or transport.

Image 1: Notifier NCM-F module sealed in its anti-static bag, showing the front side with a static-sensitive device warning label.

Image 2: Notifier NCM-F module sealed in its anti-static bag, showing the rear side with a static-sensitive device warning label and product identification sticker.
2.3 Physical Installation
- Module Insertion: Gently align the NCM-F module with the designated slot on the compatible Notifier network node (e.g., CPU-640/3030, NCA). Apply even pressure to firmly seat the module into its connector.
- Securing the Module: If applicable, use any provided screws or fasteners to secure the NCM-F module within the host network node chassis.
2.4 Fiber Optic Connection
- Cable Preparation: Ensure that the multi-mode fiber optic cables are clean and free of dust or debris. Use appropriate fiber cleaning tools if necessary.
- Connecting Cables: Connect the multi-mode fiber optic cables to the corresponding transmit (TX) and receive (RX) ports on the NCM-F module. It is critical to ensure correct polarity: the transmit port of one device must connect to the receive port of the other, and vice-versa.
2.5 Power-Up and Verification
After all physical connections are made, restore power to the host network node. Observe the system indicators on the host panel to confirm proper module recognition and network communication status. Refer to the host panel's manual for specific diagnostic procedures.
3. Operating Instructions
The Notifier NCM-F module functions as a dedicated communication interface. Its operation is largely passive, facilitating the network communication for the host panel. User interaction primarily occurs through the host fire alarm control panel or network device.
3.1 Network Communication
Once properly installed and configured within the host network node, the NCM-F transparently manages data transmission and reception over the multi-mode fiber optic link. It converts electrical signals from the host panel into optical signals for transmission and vice-versa for reception.
3.2 Status Indicators
The NCM-F module itself typically does not have user-facing indicators. Network status and module health are usually reported by the host network node. Refer to the host network node's manual for specific LED indicators, display messages, or diagnostic menus related to network communication status. These indicators will confirm the proper operation of the NCM-F and the fiber optic link.
4. Maintenance
Regular maintenance helps ensure the longevity and reliable operation of the NCM-F module and the overall network.
4.1 Cleaning Fiber Optic Connections
Periodically inspect and clean fiber optic connectors using only approved fiber optic cleaning tools and procedures. Dust, dirt, and other contaminants can significantly degrade signal quality and lead to communication errors. Never use abrasive materials or solvents not specifically designed for fiber optic cleaning.
4.2 Environmental Conditions
Ensure that the operating environment for the host network node and the NCM-F module remains within the specified temperature and humidity ranges. Extreme conditions can lead to premature module degradation or malfunction.
4.3 Firmware Updates
Any necessary firmware updates for the NCM-F module would typically be performed through the host network node. Always refer to the host panel's documentation for specific firmware update procedures and compatibility information.
5. Troubleshooting
If you experience issues with network communication, follow these troubleshooting steps.
5.1 No Network Communication
- Module Seating: Verify that the NCM-F module is correctly and firmly seated in its designated slot on the host network node.
- Fiber Optic Connections: Check all fiber optic cable connections for proper seating and correct polarity (TX to RX, RX to TX).
- Cable Integrity: Inspect fiber optic cables for any visible damage such as kinks, sharp bends, or breaks. Damaged cables must be replaced.
- Host Node Status: Ensure the host network node is powered on and functioning correctly according to its own diagnostic indicators.
- Module Recognition: Access the diagnostic menus of the host panel to confirm that the NCM-F module is recognized by the system.
5.2 Intermittent Communication
- Connector Cleanliness: Clean fiber optic connectors on both the NCM-F and the connected device.
- Loose Connections: Check for any loose fiber optic cable connections that might be causing intermittent signal loss.
- Environmental Stability: Verify that environmental conditions (temperature, humidity) are stable and within the module's specified operating range.
5.3 Module Not Recognized
- Power Cycle: Perform a controlled power cycle of the host network node.
- Re-seat Module: Carefully re-seat the NCM-F module in its slot, ensuring proper alignment and connection.
- Technical Support: If issues persist after performing these steps, contact Notifier technical support or your authorized Notifier distributor for further assistance.
6. Specifications
| Specification | Detail |
|---|---|
| Model Number | NCM F |
| Part Number | NNCMF |
| Item Weight | 2 pounds |
| Power Source | Powered by host network node |
| Item Package Quantity | 1 |
| Batteries Included | No |
| Batteries Required | No |
| Manufacturer | NOTIFIER |
| UPC | 636836973869 |
| First Available Date | May 24, 2016 |
7. Warranty and Support
7.1 Product Warranty
For detailed information regarding the warranty coverage for your Notifier NCM-F Network Control Module, please refer to the official warranty statement provided with your original purchase. You may also contact Notifier directly or consult their official website for the most current warranty terms and conditions.
7.2 Technical Support
Should you require technical assistance, installation guidance, or encounter issues that cannot be resolved using the troubleshooting steps provided in this manual, please contact Notifier customer support. You can typically find contact information on the Notifier official website or through your authorized Notifier distributor.





