Installation Guide

Maximal Expandable Power Systems - 5 -
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 1 amp @ 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 1 amp @ 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 0.7 amp. AL1024ULXB2 (Power Supply Board) maximum charge current
is 3.6 amp.
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. 6 for
Switch [SW1] location and position)
12VDC/40AH* N/A 4 amp 1 amp 300mA
24VDC/12AH N/A 200mA N/A N/A
24VDC/40AH* N/A 3 amp 1 amp 300mA
Maximal13E
Maximal33E
Maximal35E
Maximal37E
AL600ULXB
(Refer to Fig. 1a, 1b on pg. 6 for
Switch [SW1] location and position)
12VDC/40AH* N/A 6 amp 1 amp 300mA
24VDC/12AH N/A 200mA N/A N/A
24VDC/40AH* N/A 6 amp 1 amp 300mA
Maximal35E
Maximal55E
Maximal75E
AL1012ULXB
(Factory set at 12VDC)
12VDC/12AH 10 amp
Battery capacity
for emergency
stand-by at least
20 mins.
N/A N/A
Maximal37E
Maximal75E
Maximal77E
AL1024ULXB2
(Factory set at 24VDC)
24VDC/12AH 8 amp 1.5 amp 200mA 100mA
24VDC/65AH* N/A 8 amp 1.5 amp 500mA
* Note: Additional battery enclosure required (Figs. 3-5, pgs, 8-10).