4. Connect devices to be powered to the terminals marked
[+ DC – ] (Fig. 1).
5. Measure output voltage before connecting devices.
This helps avoiding potential damage.
6. For Access Control applications batteries are optional.
When batteries are not used, a loss of AC will result in the
loss of output voltage. When the use of stand-by batteries
is desired, they must be lead acid or gel type.
Connect battery to the terminals [– BAT +] (Fig. 1) as
marked on the unit (battery leads included).
Use two (2) 12VDC batteries connected in series for
24VDC operation.
7. Connect supervisory trouble reporting devices to the
outputs marked [LOW BAT, AC FAIL] supervisory relays
marked [NC, NO, C ] (Fig. 1).
Use 22 AWG to 18 AWG for AC Fail and Low Battery reporting.
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
(Power Supply Output Specifications Table).
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 discharges is 1.25 amp.
Note: Expected battery life is 5 years; however, it is recommended changing batteries in 4 years or less if needed.
LED Diagnostics:
LED
ON
OFF
AC (Green)
Normal operation
No AC input
BAT (Red)
Battery connected
Battery disconnected
DC (Red)
Normal operation
No DC output
Terminal Identification:
Terminal Legend
Function/Description
AC, AC
Low voltage (28VAC) transformer connections.
+ DC –
12VDC @ 4 amp or 24VDC @ 3 amp continuous power-limited output.
AC Fail
NC, NO, C
Indicates loss of AC power, e.g. connect to audible device or alarm panel. Relay normally ener-
gized when AC power is present. Contact rating 1 amp @ 30VDC.
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 @ 30VDC.
-- BAT +
Stand-by battery connections. Maximum charge current 1.2 amp.
+ DC --
AC FAIL NC NO C NC C NO LOW BAT
--
BA
T
+
DC
AC
1
2
3
4
ON
AC AC
24V - SW1, 2 OFF
SW3, 4 ON
12V - SW1, 2 ON
SW3, 4 OFF
Fig. 1
Altronix is not responsible for any typographical errors.
140 58th Street, Brooklyn, New York 11220 USA, 718-567-8181, fax: 718-567-9056
website: www.altronix.com, e-mail: [email protected]. Lifetime Warranty, Made in U.S.A.
IIAL400ULB - Rev. 061400
H12N
MEMBER
