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AL400UL3 / AL400UL3X Installation Guide
LED Diagnostics:
AL400ULXB2 - Power Supply
Red (DC)
Green (AC)
Power Supply Status
ON
ON
Normal operating condition.
ON
OFF
Loss of AC. Stand-by battery is supplying power.
OFF
ON
No DC output.
OFF
OFF
Loss of AC. Discharged or no stand-by battery. No DC output.
Red (Bat)
Battery Status
ON
Normal operating condition.
OFF
Battery fail/low battery.
Terminal Identification:
AL400ULXB2 - Power Supply
Terminal Legend
Function/Description
L, N
115VAC, 60 Hz
+ DC –
24VDC @ 3A total continuous output (supplies power to ALX3B).
AC Fail
NC, C, NO
Indicates loss of AC power, e.g. connect to audible device or alarm panel.
Relay normally energized when AC power is present. Contact rating 1A @ 28VDC.
Bat Fail
NC, C, NO
Indicates low battery condition, e.g. no battery presence.
Relay normally energized when DC power is present. Contact rating 1A @ 28VDC.
Low battery threshold: 24VDC. Output threshold is set approximately @ 21VDC
+ BAT –
Stand-by battery connections. Maximum charge current 0.7A.
ALX3B - Power Output Module
Terminal Legend
Function/Description
+ INPUT –
24VDC from power supply (AL400ULXB2).
+ 24VDC –
24VDC @ 1.5A continuous power-limited output
+ 12VDC –
12VDC @ 1.75A continuous power-limited output.
+ 5VDC –
5VDC @ 1.75A continuous power-limited output.
