3. General Description
The A1584 5 Amp power supply has been designed to meet EN54-4.
The power supply requires a 230volt AC input and provides three separate outputs of 28volts DC, 5
volts DC and a temperature compensated 27.5 volt DC (float) output for battery charging. The 28volt
output is derived from the DC output of the switchmode power supply, whilst the 5VDC output is
derived via a regulator on the A1584 controller board. In the event of Mains failure, the power supply
will automatically change over to the standby batteries.
The power supply has 9 LED status indicators to indicate what type of fault has occurred on the power
supply.
The power supply consists of a steel mounting chassis with the A1584, a switchmode power supply and
a fused mains input terminal block.
Document Ref: O&M15845T.DOC/Rev 0 22.11.99 Page 3 of 8 Originator KP Checked By Approved By
