
AL100UL - UL Listed
Linear Power Supply/Charger
Overview:
The AL100UL power supply converts 16.5VAC, 20VA to a 12VDC power limited output (see specifications).
The AL100UL is UL Listed for burglar alarm applications.
Specifications:
Agency Listings:
• UL Listed Standard for Power Supplies
for Use with Burglar Alarm System
Units (UL 603).
• CUL Listed - CSA Standard
C603-M1988, Burglar Alarm System.
• Class 2 Rated power limited output.
Input:
• 16.5VAC, 20VA from UL Listed, Class 2 transformer.
Output:
• 12VDC power limited output.
• Maximum charge current is .5 amp.
• .75 continuous supply current at 12.5 to 13.9VDC.
• Filtered and electronically regulated output.
Battery Backup:
• Built-in charger for sealed lead acid or gel type batteries.
• Automatic switch over to stand-by battery when AC fails.
Battery Backup (cont’d):
• Low battery disconnect prevents batteries from
deep discharge.
Supervision:
• Low battery and AC fail supervision form “C” contacts
(1 amp @ 28VDC).
Visual Indicators:
• AC input and DC output LED indicators.
Additional Features:
• Short circuit and thermal overload protection.
• Unit is complete with power supply and enclosure.
• Includes battery leads.
Enclosure Dimensions:
8”H x 7.25”W x 3.5”D
Rev. 062001
Installation Instructions:
Wiring methods shall be in accordance with the National Electrical Code/NFPA 70/NFPA 72/ANSI, and with all local
codes and authorities having jurisdiction. Product is intended for indoor use only.
1. Mount the unit in desired location. Mark and predrill holes in the wall to line up with the top two keyholes in the
enclosure. Install two upper fasteners and screws in the wall with the screw heads protruding. Place the enclosure’s
upper keyholes over the two upper screws, level and secure. Mark the position of the lower two holes. Remove the
enclosure. Drill the lower holes and install the two fasteners. Place the enclosure’s upper keyholes over the two upper
screws. Install the two lower screws and make sure to tighten all screws (Enclosure Dimensions, pg. 8). Secure
enclosure to earth g
2.
Connect a 16.5VAC, 20VA Class 2, UL Listed plug-in transformer to the terminals marked AC.
3. Measure output v
4. Connect devices to be powered to terminals marked [+ DC - ].
5. Connect the stand-by battery to terminals marked [- BAT +] (battery leads included).
6. Connect appropriate signaling notification devices to AC Fail and Low Bat supervisory relay outputs.
Note: To meet UL requirements, AC Supervisory outputs must be connected to the zone of Alarm Control Panel
or to visual
Note: For Access Control applications, batteries are optional. When batteries are not used a loss of
the loss of output voltage. When the use of stand-by batteries are desired, they must be lead acid or gel type.
A
round (Fig 1, pg. 3).
oltage before connecting devices. This helps avoid potential damage.
C trouble indicator.
C will result in
A
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 power supply voltage output specifications chart).
Battery Test: Under normal load conditions check that the battery is fully charged, check specified voltage both at battery terminal and at the board terminals marked [- BAT +] to insure there is no break in the battery connection wires.
Note: Maximum charging current under dischar
Note: Expected battery life is 5 y
ears, howev
ge is 500mA.
er it is recommended changing batteries in 4 years or less if needed.

LED Diagnostics:
A
C
DC
AC FAIL
LOW BAT
RL2
RL1
PTC1
IC1
C1
NO C NC
NO C NC
Red (DC) Green (AC) Power Supply Status
ON ON Normal operating condition.
ON OFF Loss of
AC, Stand-by battery supplying power.
OFF ON No DC output.
OFF OFF Loss of AC. Discharged or no stand-by battery. No DC output.
Stand-by Specifications (Using (1) 4AH 12VDC Battery):
Current Draw Stand-by Time Alarm Time
750mA 4 hours 15 mins.
16.5VAC, 20VA
Plug-in Transformer
(UL Listed. Class 2 Transformer)
750mA 12VDC
Power Limited
Output
Stand-by
Battery
- 2- AL100UL

Terminal Identification:
Terminal Function/Description
Legend
AC/AC Low voltage AC input (16.5VAC/20VA). UL Listed. Class 2 plug-in transformer.
– DC + 12VDC @ .75 amp continuous po
wer limited output.
– BAT + Stand-by battery connections. Maximum charge rate 500mA.
AC FAIL Indicates loss of AC, e.g connect audible device or alarm panel. Relay is normally
NC, C, NO energized when AC power is present. Contact rating 1 amp @ 28VDC.
LOW BAT Indicates low battery condition e.g connect audible device or alarm panel. Relay is
NC, C, NO normally energized. Contact rating 1 amp @ 28VDC.
AL100UL - 3-

Enclosure Dimensions:
8.5”H x 7.5” W x 3.5” D
Altronix is not responsible for any typographical errors.
140 58th Street, Brooklyn, New York 11220 USA, 718-567-8181, fax: 718-567-9056
web site: www.altronix.com, e-mail: info@altronix.com, Lifetime Warranty, Made in U.S.A
IIAL100UL G29I
- 4- AL100UL
MEMBER