Altronix AL125UL, AL125ULX Installation Manual
AL125UL • AL125ULX • AL125ULP • AL125ULE
Access Control Power Supply/Chargers
Overview:
AL125UL Series power-limited Power Supply/Chargers convert 115VAC 50/60Hz input into two individually PTC protected 12VDC or 24VDC outputs (see specifications). They are intended for use in applications requiring UL Listing for
Access Control (UL294) and applications requiring an interface with Fire Alarm Control Panels.
Specifications:
Agency Listings:
• UL Listed for Access Control Systems (UL294).
CUL Listed - CSA Standard C22.2 No.205-M1983,
Signal Equipment.
• MEA - NYC Department of Buildings Approved.
• NFPA 101 (Life Safety).
Input:
• AL125UL, AL125ULX - 115VAC 50/60 Hz, .6 amp.
• AL125ULP, AL125ULE - 24VAC @ 40VA.
Output:
• Two (2) 12VDC or 24VDC, Class 2 Rated
Power-Limited Outputs.
• 1 amp total supply current @ 12VDC or 24VDC
(AL125UL & AL125ULX).
• 1 amp total supply current @ 12VDC, 0.5 amp total
supply current @ 24VDC (AL125ULP & AL125ULE).
• Filtered and electronically regulated output.*
Battery Backup:
• Built-in charger for sealed lead acid or
gel type batteries.
• Maximum charge current: 400mA.
• Automatic switch over to stand-by battery when AC fails.
Special Features:
• AC power and unit status indicator on the front panel.
• Normally Open [NO] trigger input.
• Supervised Fire Alarm Disconnect (Latching w/reset
or Non-Latching).
Configurations:
• AL125UL - includes power supply, transformer
cam lock and enclosure (8.5”H x 7.5”W x 3.5”D)
(215.9mm H x 190.5mm W x 88.9 Dmm).
Accommodates one (1) 12VDC/4AH battery.
• AL125ULP - includes power supply, plug-in transformer
(24VAC/40VA) cam lock and enclosure
(8.5”H x 7.5”W x 3.5”D). Accommodates one (1)
12VDC/7AH battery or two (2) 12VDC/4AH batteries.
• AL125ULE - includes power supply, cam lock
and enclosure (8.5”H x 7.5”W x 3.5”D).
Accommodates up to two (2) 12VDC/4AH batteries.
• AL125ULX - includes power supply, transformer,
cam lock and enclosure (13.5”H x 13”W x 3.25”D)
(342.9mm H x 330.2mm W x 82.55mm D).
Accommodates up to two (2) 12VDC/7AH batteries.
*Note: When unit is powered by battery back up (AC Fail condition) the voltage range is 9.3V-13.2V and
19.55V-26.4V for 12 and 24 volt operation respectively.
Power Supply Output Specifications: (AL125UL, AL125ULX)
Output VDC Switch Position Max. Stand-by Load DC Max. Alarm Load DC Battery (optional)
12VDC SW2 OFF 1 amp 1 amp 12VDC
24VDC SW2 ON 1 amp 1 amp 24VDC
Power Supply Output Specifications: (AL125ULP, AL125ULE)
Output VDC Switch Position Max. Stand-by Load DC Max. Alarm Load DC Battery (optional)
12VDC SW2 OFF 1 amp 1 amp 12VDC
24VDC SW2 ON 0.5 amp 0.5 amp 24VDC
Stand-by Specifications:
Output
12VDC / 4AH Battery 0.5 amp / 1 amp 12VDC / 7AH Battery 1 amp / 1 amp
24VDC / 4AH Battery 0.5 amp / 1 amp 24VDC / 7AH Battery 1 amp / 1 amp
4hr. of Stand-by &
5 min. of Alarm
Output
4hr. of Stand-by &
5 min. of Alarm
AL125ULseries - 1 -
Installation Instructions:
The units should be installed in accordance with article 760 of The National Electrical Code and NFPA 72 as well as all
applicable Local Codes.
See Terminal Identification Chart on page 2 for a description of each terminal function.
1. Mount unit in the 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 two fasteners. Place the enclosure’s upper keyholes over the two
upper screws. Install two lower screws and make sure to tighten all screws (Enclosure Dimensions, pg. 4).
Secure green wire lead to the earth ground.
2. Power connections:
a. AL125UL, AL125ULX - Connect 115VAC 50/60Hz to the black and white flying leads of the transformer.
Use 18 AWG or larger for all power connections (Battery, AC input, DC outputs).
Use 22 AWG to 18 AWG for power-limited circuits (Trigger inputs, Dry outputs, DC outputs).
b. AL125ULP, AL125ULE - Connect 24VAC from UL Listed 40VA plug-in transformer (included with
AL125ULP) to terminals marked [XFMR].
Keep power-limited wiring separate from non power-limited wiring (115VAC / 60Hz Input, Battery Wires).
Minimum 0.25” spacing must be provided.
CAUTION: Do not touch exposed metal parts. Shut branch circuit power before installing or servicing equipment.
There are no user serviceable parts inside. Refer installation and servicing to qualified service personnel.
3. Measure output voltage before connecting any devices to ensure proper operation. Improper or high voltage
will damage these devices.
4. Set the desired DC output voltage by setting switch SW2 (Fig. 1a - Application Diagram, pg. 3) to the appropriate
position (Power Supply Output Specifications Table, pg. 1).
5. Connect Fail-Safe locking devices to the terminals marked [COM-- and LOCK+]. Connect Fail-Secure locking
devices to the terminals marked [COM-- and STRIKE+] (Fig. 1 - Application Diagram, pg. 3).
6. Connect normally open access control device (i.e. card reader, request to exit device, access control system) to the
terminals marked TRG INPUT [NO, GND] (Fig. 1 - Application Diagram, pg. 3).
7. Connect FACP interface to the terminals marked [FACP1 and FACP2]. Wire the 2.2K resistor (supplied) in series
for a normally closed input or in parallel for a normally open input (Fig. 1 - Application Diagram, pg. 3). If
required, set the latching FACP interface mode by turning SW1 ON(Fig. 1a - Application Diagram, pg. 3)
and connect a normally open reset device to the terminals marked RESET [NO, GND].
8. Connect battery to terminals marked [+ BAT -- ] (battery leads included). Use two (2) 12VDC batteries connected
in series for 24VDC operation.
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. When the use of stand-by batteries is desired, they must be lead acid or gel type.
9. Please ensure that the cover is secured with the provided cam lock.
Terminal Identification:
Terminal Legend Function/Description
XFMR Low voltage transformer connections.
+ AUX ---
LOCK +
STRIKE +
COM ---
FACP1
FACP2
TRG INPUT
NO, GND
RESET
NO, GND
+ BAT --- Stand-by battery connections.
- 2 - AL125ULseries
Aux. power output terminals. These terminals supply 12VDC or 24VDC not affected by trigger, reset
or fire alarm interface.
Switched power output. Fail-Safe [LOCK+] supplies positive power when unit is not triggered
and FACP interface is inactive. Fail-Secure [STRIKE+] supplies positive power when unit
is triggered and/or fire alarm interface is activated. [COM-- ] supplies negative power.
Supervised by 2.2K end of line resistor FACP interface. Short or open will cause power to be
dropped to terminal marked [LOCK+] and supply power to terminal marked [STRIKE+].
Condition can be maintained even after restoration of the circuit (latching mode).
Short between these two terminals will cause power to be dropped to the terminal marked
[LOCK+] and supplied to the terminal marked [STRIKE+].
Momentary short between these terminals would end latching FACP interface condition.
Feature active only if latching FACP is selected (SW1 ON).
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