Maximal Expandable Power Systems
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Power Supply Board Terminal Identification:
Terminal
Legend
Function/Description
L, G, N
Connect 115VAC 60Hz to these terminals: L to hot, N to neutral .
+ DC –
Refer to Maximal Series Configuration Chart, pg. 3.
AC FAIL
NC, C, NO
Indicates loss of AC power . To meet with UL requirements it is mandatory to connect visual
notification devices, connecting audible notification devices is optional . Relay normally
energized when AC power is present . Contact rating 1A @ 28VDC . AC or brownout fail is
reported within 1 minute of event .
BAT FAIL
NC, C, NO
Indicates low battery condition, e .g . connect to alarm panel . Relay normally energized when
DC power is present . Contact rating 1A @ 28VDC . A removed battery is reported within 5
minutes . Battery reconnection is reported within 1 minute .
Low battery threshold:
12VDC output threshold set @ approximately 10 .5VDC .
24VDC output threshold set @ approximately 21VDC .
+ BAT –
Stand-by battery connections .
AL400ULXB2, AL600ULXB, and AL1012ULXB (Power Supply Board) maximum charge
current is 0 .7A . AL1024ULXB2 (Power Supply Board) maximum charge current is 3 .6A .
Power Supply Board Stand-by Battery Specifications
Altronix
Model
Power Supply
Board
Battery
20 min. of
Backup
4 hr. of
Backup
24 hr. of
Backup
60 hr. of
Backup
Maximal11E
Maximal13E
AL400ULXB2
(Refer to Fig. 1a, 1b
on pg. 5 for Switch
[SW1] location
and position)
12VDC/40AH*
N/A
4A
1A
300mA
24VDC/12AH
N/A
200mA
N/A
N/A
24VDC/40AH*
N/A
3A
1A
300mA
Maximal13E
Maximal33E
Maximal35E
Maximal37E
AL600ULXB
(Refer to Fig. 1a, 1b
on pg. 5 for Switch
[SW1] location
and position)
12VDC/40AH*
N/A
6A
1A
300mA
24VDC/12AH
N/A
200mA
N/A
N/A
24VDC/40AH*
N/A
6A
1A
300mA
Maximal35E
Maximal55E
Maximal75E
AL1012ULXB
(Factory set at
12VDC)
12VDC/12AH
10A
Battery capacity
for emergency
stand-by at least
20 mins .
N/A
N/A
Maximal37E
Maximal75E
Maximal77E
AL1024ULXB2
(Factory set at
24VDC)
24VDC/12AH
8A
1 .5A
200mA
100mA
24VDC/65AH*
N/A
8A
1 .5A
500mA
* Note: Additional battery enclosure required (Figs. 3-7, pgs, 7-11).
Power Supply Board Output Voltage Settings:
Fig. 1
+ DC
---
SW1
OFF - 24V
ON - 12V
ON
Fig. 1a - AL400ULXB2 / AL600ULXB Power Supply Board
Fig. 1b
ON
OFF - 24V
ON - 12V