AL4003V
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4. Connect devices to be powered at 5VDC to the terminals marked [+ OUT 3 - ].
5. Connect devices to be powered at 12VDC to the terminals marked [+ OUT 2 - ].
6. Connect devices to be powered at 24VDC to the terminals marked [+ OUT 1 - ].
7. Connect two (2) 12V Stand-by batteries.
Note: For Access Control applications batteries are optional. When batteries are not used, a loss of AC will result in
the loss of output voltage. Batteries must be lead acid or gel type if used. Two (2) 12V Stand-by batteries
connected in series to terminals marked [+ BAT -- ] (Fig. 1 , pg. 3).
8. It is required to connect supervisory trouble reporting devices to the outputs marked [AC FAIL, LOW BAT]
(Fig. 1, pg. 3). Use 22 AWG to 18 AWG for AC Fail and Low Battery reporting. AC Failure will report in 5 minutes.
Maintenance:
Unit should be tested at least once a year for the proper operation as follows:
Output Voltage Test: Under normal load conditions, the DC output voltage should be checked for proper voltage level
(see Terminal Identification Tables).
Battery Test: Under normal load conditions check that the battery is fully charged, check specified voltage at the battery
terminals and at the board terminals marked [+ BAT -- ] to ensure that there is no break in the battery connection wires.
Note: Maximum charge current under discharge is 0.7A.
Note: Expected battery life is 5 years, however it is recommended changing batteries in 4 years or less if necessary.
LED Diagnostics:
AL400XB220 - Power Supply
LED
ON
OFF
AC (Green)
Normal operation
No AC input
DC (Red)
Normal operation
No DC output
Terminal Identification Tables:
AL400XB220 - Power Supply
Terminal Legend Function/Description
L, N
220VAC, 50/60Hz
-- 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.
AL3XB - Power Output Module
Terminal Legend Function/Description
-- INPUT +
24VDC from power supply (AL400XB220)
-- OUT 1 +
24VDC @ 1.5A continuous power-limited output
-- OUT 2 +
12VDC @ 1.75A continuous power-limited output.
-- OUT 3 +
5VDC @ 1.75A continuous power-limited output.
