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
(refer to Power Supply Voltage Output Specifications chart)
.
Battery Test:
Under normal load conditions check that the battery is fully charged, check specified voltage both at the battery terminal
and at the board terminals marked [+ BAT –] to ensure that there is no break in the battery connection wires.
Note:
Maximum charging 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 needed.
LED Diagnostics:
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:
Terminal Legend
Function/Description
L, G, N
Connect 115VAC 60 Hz to these terminals: L to Hot, N to Neutral, G to ground.
+ DC –
12VDC or 24VDC @ 2.5A continuous power-limited output.
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. AC or brownout fail is reported within 1 minute of event. To delay reporting of
up to 6 hrs., cut “AC delay” jumper and reset power to unit.
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.
+ BAT –
Stand-by battery connections. Maximum charge current 0.7A.
Altronix is not responsible for any typographical errors.
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140 58th Street, Brooklyn, New York 11220 USA | phone: 718-567-8181 | fax: 718-567-9056
website: www.altronix.com | e-mail: [email protected] | Lifetime Warranty
IIAL300ULXB2 - Rev. 030619
D21U
Fig. 2
MEMBER
+ DC
---
BAT FAIL NC C NO NC C NO
+ BAT
---
AC FAIL
DC
AC
BAT
L
G
N
5A 250V
OFF --- 24V
ON --- 12V
ON
Fig. 2a
+ DC
---
BAT FAIL NC C NO NC C NO
+ BAT
---
AC FAIL
DC
AC
BAT
L
G
N
5A 250V
OFF --- 24V
ON --- 12V
ON
