AMPS-24/E (Nordiphel/Honeywell) Host Main Power Supply
AMPS-24E (220-240VAC version) is a standard intelligent main power supply and battery charger for the NFS2-3030 (CPU2-3030D) fire alarm host. It is addressable, has an isolated SLC interface, communicates directly with the CPU, and reports faults.

1、 Model differentiation
AMPS‑24：110–120VAC，50/60Hz， Maximum 5A (commonly used in the Americas)
AMPS‑24E：220–240VAC，50/60Hz， Maximum 2.5A (commonly used in China)
2、 Core parameters (AMPS-24E)
1) Input (TB1)
Communication: 220-240VAC ± 15%, 50/60Hz, 2.5A max
Insurance: 8A/250V fast melting ceramic insurance
2) Output (to host+peripherals)
MAIN 24V（TB2→CPU2‑3030D）：
Standard: 24VDC @ 5A (filtering, current limiting Class 2)
Typical: Power supply for 3030 host+circuit card
AUX 24V（TB3）：
24VDC @ 0.5A (filtering, current limiting)
5VDC（TB2）：
5VDC @ 0.15A (for some peripherals)
3) Battery charging (TB4/TB5)
Battery: 24V Sealed Lead Acid 7-200AH
Charging current: Software selectable 1A/2A/5A/OFF
Floating voltage: 27.6VDC
Monitoring and reporting of battery failure/charging failure/AC power failure
3、 Connected to CPU2-3030D
Directly connect CPU2-3030D TB2 and EIA 485 communication through a dedicated wiring harness
Occupying 4 SLC addresses, the power status can be recognized and monitored on the host
Supports FlashScan/CLIP two loop protocols
4、 Key functions
✅ Intelligent addressable: The host can recognize, program, and report power failures
✅ Isolation SLC interface: anti-interference, protection circuit
✅ Power failure detection+delay report: avoid false alarms of instantaneous interruption
✅ Battery/Charging Monitoring: Real time monitoring of backup power health status
✅ USB-B: Local Parameter Programming
5、 Typical configuration (domestic project)
Host: NFS2-3030 (CPU2-3030D)
Main power supply: AMPS-24E
Battery: 24V 65AH/100AH (selected according to standby time)
Installation: CAB-4 series cabinet or BB-25/100/200 battery box