Power supply units
They models are different in voltage (from 12 to 24 V) and amperage (from 1 to 8 A). There are also supervised models.
FX/AL01
FX/AL01 is a 24Vdc/4A supervisioned power supply supplied with FX/50 fire detection control unit.
AL2SW24
DC24V/2A switching power supply unit
AL2.4/24
24V-2.4A power supply