A1 - 3
Morley-IAS
996-203-000-2, Rev. 02
2.2
Power Supply and Charger
Specification Item
Values
Operating Voltage
230V 50Hz AC
Voltage tolerance
+ 10% - 15%
Incoming mains fuse
5A T5AH250V (20mm HRC anti-surge fuse in AC Mains TB)
Base card input
25.0 to 23.0 V
Battery fuse (on Base Card)
F9 5A T5AH250V (20 mm HRC anti-surge)
Battery Charger Output Voltage 27.2 V nom @ 20°C (temperature compensated and current limited)
Maximum Battery Current
(no mains supply)
5A (limited by battery fuse F9 located on Base PCB)
AUX DC Output Voltage
27.5V Maximum
, 19.5V Absolute Minimum
DXc1
DXc2
DXc4
Panel Quiescent Current
1
I
min
= 110mA
I
min
= 110mA
I
min
= 160mA
Panel Alarm Current
2
160mA
160mA
210mA
Battery Charging Current
3
0.95 A (max.)
1.17 A (max.)
1.17 A (max.)
0.62 A (min)
0.75 A (min)
0.75 A (min)
AUX DC Output Current
4
0.25A
0.25A
0.25A
Power Supply Output Rating
(Continuous)
2.0A
4.0A
4.0A
Ripple Voltage (Max.)
<1.0V
<1.0V
<1.0V
EN54 Battery Wiring Test
Impedance
0.4 Ohm
DXc1
DXc2/4
EN54-4 PSU Loadings
I
max(a)
= 600mA @ 24 Vdc
I
max(a)
= 700mA @ 24 Vdc
I
max(b)
= 2A @ 24 Vdc
I
max(b)
= 4A @ 24 Vdc
Standby Batteries
Minimum = 7Ah
Minimum = 7Ah
Minimum = 7Ah
(24V DC sealed lead acid)
Maximum = 7Ah
Maximum = 17Ah
Maximum = 17Ah
1
Back light off. No loop devices, no option cards.
2
Back light on. Fire relay and 2 sounder relays on.
3
Battery charger output is disconnected in alarm.
4
Total AUX DC power available - split across both AUX outputs.
Table 14 - Power Supply and Charger Specifications
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