Altronix AL842ULADA NAC Power Supply, 4 Class A or 4 Class B Outputs, 24VDC @ 8A, 115VAC, Red BC400 Enclosure
- Horn/Strobe sync protocols include: Gentex®, System Sensor®, Faraday, Amseco
- Temporal Code 3 Mode and Steady Mode
- Zero voltage drop upon transfer to battery backup
- AC input and DC output LED indicators
- Compatible with 24VDC or 12VDC fire panels

The AL842ULADA from Altronix is an extremely cost effective 8 amp voltage regulated remote NAC Power Extender. It may be connected to any 12 or 24 volt Fire Alarm Control Panel (FACP). Primary applications include Notification Appliance Circuit (NAC) expansion (supports ADA requirements) and will provide auxiliary power to support system accessories.The AL842ULADA delivers regulated and filtered 24 or 12-volt power via four (4) Class B, four (4) Class A or two (2) Class B and two (2) Class A Notification Appliance Circuits. Additionally, the unit can supply up to 1 amp from continuous AUX output and up to 1 amp from AC disconnected AUX output. All outputs may be programmed for Input to Output Follower Mode (output will follow input. i.e. March Time Input, March Time Output). An individual output of 4 amp is achieved by paralleling 2 outputs.The AL842ULADA has common trouble output terminals (NC, C, NO) which are used to indicate general loop/system trouble. A common trouble input is provided for optional NC (normally closed) devices to report trouble to the FACP. Two (2) FACP signaling outputs can be connected to power extender inputs. These inputs can then be directed to control supervision and power delivery to any combination of the four (4) outputs.The AL842ULADA also features Loop Output trouble memory indication to help identify troublesome sporatic loop problems. In non-alarm condition, units provide independent loop supervision for Class A and/or Class B FACP NAC circuits. In the event of a loop trouble, the FACP will be notified via steered inputs (input 1 or input 2). The 8 amp rated supply current can be divided between the four (4) outputs for powering notification appliances and the AUX outputs. Each output is rated at 2.5 amp max (total not to exceed 8 amp), and can be independently programmed for Steady, Temporal Code 3 or Strobe Synchronization.
Altronix AL842ULADA Power Supply Features
- Horn/Strobe sync protocols: Includes Gentex®, System Sensor®, Faraday, Amseco for versatile compatibility.
- Temporal Code 3 Mode and Steady Mode: Allows for customized notification patterns to suit various fire safety applications.
- Zero voltage drop: Ensures continuous operation during battery backup transfers, enhancing reliability.
- AC input and DC output LED indicators: Provides clear visual feedback for monitoring system status.
- Compatibility: Works seamlessly with 24VDC or 12VDC fire panels to enhance integration options.
- Input to Output Follower Mode: Maintains synchronization of notification appliance circuits for consistent performance.
- Complete Package: Comes with power supply, logic board, red enclosure, cam lock, transformer & battery leads for ease of installation.
Altronix AL842ULADA Detailed Specifications
| Product Type | NAC Power Extender |
| Output Current | 8 Amps |
| Input Voltage | 115VAC |
| Output Voltage | 24VDC |
| Outputs | 4 Class B / 4 Class A |
| Auxiliary Output | 1 Amp (Continuous), 1 Amp (AC Disconnected) |
| Max Output per Circuit | 2.5 Amps (total not to exceed 8 Amps) |
| Enclosure Color | Red |
| Package Contents | Power supply, logic board, enclosure, cam lock, transformer, battery leads |



