1. Introduction
The Notifier NCA-2 Network Control Annunciator is a sophisticated device designed for use in fire alarm and emergency communication systems. It provides a 640-character display for monitoring and controlling network systems. This manual provides essential information for the proper installation, operation, and maintenance of the NCA-2 unit.
When used with single panel NFS2-640 systems, the NCA-2 can serve as the primary display, connecting directly to the CPU2-640. For network systems involving two or more Fire Alarm Control Panels (FACPs), one network display (NCA-2, NCS, or ONYXWorks) is required per system, and each NCA-2 must connect to and utilize an NCM Network Control Module.

Figure 1.1: Front view of the Notifier NCA-2 Network Control Annunciator. This image shows the main unit with its 640-character display screen and integrated keypad, housed within a dark gray enclosure.
2. Components Included
Upon unpacking, verify that all components are present and undamaged. The standard package for the Notifier NCA-2 typically includes:
- Notifier NCA-2 Network Control Annunciator Unit
- Instruction Manual (this document)
- Mounting hardware (may vary based on specific kit)
- Interconnection wiring harness

Figure 2.1: The Notifier NCA-2 instruction manual and a bundled wiring harness, essential for connecting the annunciator within a fire alarm system.

Figure 2.2: The Notifier NCA-2 unit, protected within an anti-static shielding bag, showing its display and keypad through the transparent material.

Figure 2.3: The Notifier NCA-2 unit securely packaged in a cardboard box with bubble wrap for protection during transit.
3. Setup and Installation
Installation of the NCA-2 unit requires adherence to local codes and the National Fire Protection Association (NFPA) standards. It should only be performed by qualified personnel.
3.1 Mounting Options
The NCA-2 offers flexible mounting solutions:
- Direct FACP Node Mounting: The unit can be mounted directly in a row of a Fire Alarm Control Panel (FACP) node.
- Annunciator Module Positions: It can occupy two annunciator module positions within a compatible enclosure.
- Specific Mounting Kits:
- NCA/640-2-KIT: For direct mounting to the CHS2-M2 chassis.
- CA-2, ADP-4B: Other compatible mounting plates or kits.
- Annunciator Box Installation: Can be installed in an annunciator box, such as the ABS-2DB (requires the CHS-2D chassis).
3.2 Electrical Connections
Ensure all power is disconnected before making any electrical connections.
- Single Panel Systems (NFS2-640): The NCA-2 connects directly to the CPU2-640 for primary display functionality.
- Network Systems (Multiple FACPs): Each NCA-2 unit requires an NCM Network Control Module for connection to the network. Refer to the NCM module's instruction manual for specific wiring diagrams and configuration.
Always follow the detailed wiring diagrams provided with the NCA-2 and associated modules. Incorrect wiring can lead to system malfunction or damage.
4. Operating Instructions
The Notifier NCA-2 serves as a central point for monitoring and controlling networked fire alarm systems. Its 640-character display provides detailed event information, system status, and user prompts.
4.1 Power-Up Sequence
- Ensure all connections are secure and verified.
- Apply power to the FACP or network control module as per system specifications.
- The NCA-2 display will illuminate and perform a self-test.
- Upon successful power-up, the display will show the system's normal operating status or any active events.
4.2 Navigating the Display and Keypad
The NCA-2 features a keypad for user interaction. Common functions include:
- Event Acknowledge: Press the 'ACK' button to acknowledge new alarms or troubles.
- Silence Alarms: Use the 'SILENCE' button to silence audible alarms.
- System Reset: The 'RESET' button clears active alarms and restores the system to normal operation after an event has been resolved.
- Menu Navigation: Utilize arrow keys and 'ENTER' to navigate through menus for viewing event history, system programming, or diagnostic information.
- Text Input: The alphanumeric keypad allows for entering specific commands or information as required by the system.
Refer to the specific system programming manual for detailed instructions on advanced operations and configuration.
5. Maintenance
Regular maintenance ensures the reliable operation of the Notifier NCA-2 and the overall fire alarm system. Maintenance should only be performed by authorized and trained personnel.
5.1 Routine Checks
- Visual Inspection: Periodically inspect the unit for any visible damage, loose connections, or environmental factors that could affect performance (e.g., excessive dust, moisture).
- Display Functionality: Verify that the 640-character display is clear and all segments are functioning correctly.
- Keypad Response: Test the responsiveness of all keypad buttons.
- System Status: Confirm that the NCA-2 accurately reflects the status of the connected fire alarm system.
5.2 Cleaning
Clean the exterior of the NCA-2 with a soft, dry, lint-free cloth. Do not use abrasive cleaners, solvents, or excessive moisture, as these can damage the display or electronic components.
5.3 Firmware Updates
Firmware updates may be released periodically to enhance functionality or address issues. Consult Notifier technical support or your system integrator for information on available updates and the proper procedure for installation.
6. Troubleshooting
This section provides basic troubleshooting steps for common issues. For complex problems, contact qualified service personnel.
6.1 Display Not Illuminating
- Check Power: Ensure the FACP or network control module supplying power to the NCA-2 is operational and receiving power.
- Verify Connections: Inspect all power and communication wiring for secure connections.
- System Status: Check the status of the main FACP for any power-related troubles.
6.2 Incorrect System Status Displayed
- Network Communication: For networked systems, verify the NCM Network Control Module is functioning correctly and network cabling is intact.
- Configuration: Ensure the NCA-2 is correctly configured to communicate with the specific FACP or network segment.
- FACP Status: Confirm the actual status of the FACP or network nodes directly.
6.3 Keypad Unresponsive
- Power Cycle: Perform a controlled power cycle of the FACP (if safe and permissible) to reset the NCA-2.
- Physical Damage: Inspect the keypad for any physical damage or debris that might be obstructing button presses.
If issues persist after basic troubleshooting, contact Notifier technical support or a certified service technician.
7. Specifications
| Feature | Specification |
|---|---|
| Model Number | NCA-2 |
| Part Number | NNCA2 |
| Display Type | 640-Character LCD |
| Brand | Notifier |
| Manufacturer | NOTIFIER |
| Item Weight | 1 pound |
| Power Source | System PowerSource (via FACP or NCM) |
| Alarm Type | Audible (via system) |
| UPC | 734038305652 |
| Date First Available | May 5, 2019 |
8. Warranty and Support
For specific warranty information, please refer to the documentation provided with your purchase or contact Notifier directly. Warranty terms typically cover manufacturing defects under normal use conditions.
For technical support, service, or to report issues, please contact your authorized Notifier distributor or a certified fire alarm system technician. Ensure you have your product model number (NCA-2) and any relevant system information available when seeking support.
Notifier Contact Information: Please visit the official Notifier website for the most current contact details and support resources.





