Johnson AMPS-24E Addressable Power Supply

Overview

l The AMPS power supply is an addressable unit with a standby battery charger and two external 24VDC outputs. It has two operating modes: FLASHSCAN and CLIP (Typical Loop Interface Protocol).

- Addressable by the FLASHSCAN or CLIP fire alarm control panel (FACP)

- Selectable charging batteries from 25AH to 200AH

- Signal line circuit interface with isolation function

- Standby power/charging monitoring

l The Notifier NFS2-3030 system power supply AMPS-24E is addressable AMPS-24E. The AMPS-24E serves as the primary electrical source for the system, providing power to addressable devices. This power supply features an isolated signal line circuit interface, occupying four SLC loop addresses for reporting power faults. It can provide 24VDC to the system and charge the battery, with functions such as standby power monitoring, charging monitoring, AC power monitoring, and AC power failure protection.

l Main power (TB3): 240VAC, 50/60Hz input, maximum 2.25A output (TB6): one 5VDC, 1.0A, no power limit, monitors one 24VDC, 1.0A, no power limit, monitors (if not using the 5VDC output, there is a power limit) output (TB2): connects CPU-3030 card24VDC, 4.5A filtered, no power limit 24VDC, 4.2A (when using the 5VDC output on TB6) 24VDC, 3.5A (when using the 24VDC output on TB6) 24VDC, 3.2A (when both the 5VDC and 24VDC outputs on TB6 are used) Standby power and charging circuits (TB4, TB5): power limited, sealed lead-acid battery, 25~200AH; optional charging current, 2.0A or 5.0A Cable diameter: 0.75~3.25 square mm Standby fuse (F2): 10A, 3AB

Short Description of AMPS-24E

The Johnson AMPS-24E is an addressable power supply that integrates seamlessly with various fire alarm systems, providing essential power and battery support. It operates in both FlashScan® and CLIP modes, allowing system design and installation flexibility. The unit features advanced monitoring capabilities, including brownout detection and battery supervision, ensuring the system remains operational even during power interruptions.

Technical Specifications

l Model: AMPS-24E

l Input Voltage: 220-240 VAC, 50/60 Hz

l Maximum Input Current: 2.5 A

l Output Voltage: 24 VDC (up to three outputs)

l Battery Charging Capacity: 7 to 200 AH batteries

l Charging Current Options: Selectable at 1.0 A, 2.0 A, or 5.0 A

l Auxiliary Outputs:

l 24V @ 0.5A

l 5V @ 0.15A

l Operating Temperature Range: 0°C to 49°C (32°F to 120°F)

l Humidity Rating: Up to 93% relative humidity ±2% at 32°C ±2°C

Detailed Features of AMPS-24E

A. Addressable Functionality: The AMPS-24E can be addressed by compatible fire alarm control panels, enhancing system integration.

B. Three Filtered Outputs: Provides three separate filtered outputs for powering additional devices or components.

C. Isolated Signaling Line Circuit (SLC): Ensures safe device communication without interference.

D. Advanced Monitoring Capabilities: Includes AC loss detection, battery supervision, and five-point trouble reporting.

E. USB Programming Port: Facilitates easy configuration and parameter setting via a USB Type B connector.

Applications

The Johnson AMPS-24E is ideal for a wide range of applications:

l Commercial Buildings: Perfect for office complexes where reliable fire safety systems are crucial.

l Industrial Facilities: Supports extensive fire alarm networks in manufacturing plants and warehouses.

l Healthcare Institutions: Essential for hospitals that require uninterrupted monitoring of fire safety systems.

l Educational Institutions: Provides robust power solutions for schools and universities, ensuring safety during emergencies.

Installation of AMPS-24E

Installing the Johnson AMPS-24E involves several steps:

l Preparation:

Choose a suitable location that allows easy maintenance access.

Ensure the installation area is dry and free from obstructions.

l Mounting the Unit:

Use the provided mounting hardware to securely mount the AMPS-24E in a compatible enclosure, such as CAB-4 or BB series backboxes.

Ensure adequate ventilation around the unit to prevent overheating.

l Wiring Connections:

Connect the AC power supply leads to the designated terminals on the unit.

Wire the auxiliary outputs and SLC connections according to system requirements.

Connect batteries as per specifications, ensuring correct polarity.

l Testing Functionality:

After installation, power the unit and verify all connections function correctly by simulating alarm conditions.

Check monitoring features such as AC loss detection and battery status.

l Final Configuration:

Use the USB port to program any necessary settings or parameters.

Document all connections and settings for future reference.

Related Part Numbers

For customers interested in similar products within this series, consider the following:

l Johnson AMPS-24 (for lower voltage applications)

l Johnson NCA Network Control Annunciator (for enhanced monitoring capabilities)

Previous: ACM-24AT