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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 pro­
tected 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, 0.6A. 
•  AL125ULP, AL125ULE - 24VAC @ 40VA. 

Output: 

•  Two (2) 12VDC or 24VDC, Class 2 Rated 

Power-Limited Outputs. 

•  1A total supply current @ 12VDC or 24VDC 

(AL125UL &  AL125ULX). 

•  1A total supply current @ 12VDC, 0.5A 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” x 7.5” x 3.5” (215.9mm x 190.5mm x 88.9mm). 
Accommodates one (1) 12VDC/4AH battery. 

•  

AL125ULP - includes power supply, 24VAC/40VA 
plug-in transformer, cam lock, and enclosure. 
8.5” x 7.5” x 3.5” (215.9mm x 190.5mm x 88.9mm). 
Accommodates one (1) 12VDC/7AH battery or 
two (2) 12VDC/4AH batteries. 

•  

AL125ULE - includes power supply, cam lock, 
and enclosure. 
8.5” x 7.5” x 3.5” (215.9mm x 190.5mm x 88.9mm). 
Accommodates up to two (2) 12VDC/4AH batteries. 

•  

AL125ULX - includes power supply, transformer, 
cam lock, and enclosure 
13.5” x 13” x 3.25” (342.9mm x 330.2mm x 82.55mm). 
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 

1A 

1A 

12VDC 

24VDC 

SW2 ON 

1A 

1A 

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 

1A 

1A 

12VDC 

24VDC 

SW2 ON 

0.5A 

0.5A 

24VDC 

Stand-by Specifications: 

Output 

4hr. of Stand-by & 

5 min. of Alarm 

12VDC / 4AH Battery 

0.5A / 1A 

24VDC / 4AH Battery 

0.5A / 1A 

Output 

4hr. of Stand-by & 

5 min. of Alarm 

12VDC / 7AH Battery 

1A / 1A 

24VDC / 7AH Battery 

1A / 1A 

AL125ULseries  

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                    Available from A1 Security Cameras 

    www.a1securitycameras.com email: sales@a1securitycameras.com

Summary of Contents for AL125UL

Page 1: ...cludes power supply transformer cam lock and enclosure 8 5 x 7 5 x 3 5 215 9mm x 190 5mm x 88 9mm Accommodates one 1 12VDC 4AH battery AL125ULP includes power supply 24VAC 40VA plug in transformer cam lock and enclosure 8 5 x 7 5 x 3 5 215 9mm x 190 5mm x 88 9mm Accommodates one 1 12VDC 7AH battery or two 2 12VDC 4AH batteries AL125ULE includes power supply cam lock and enclosure 8 5 x 7 5 x 3 5 2...

Page 2: ...am 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 req...

Page 3: ... 1 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 ensure that there is no break in the battery connection wires Note Maximum charging current under discharge is 400mA Note Expected battery life is 5 years however it is recommended changing batteries in 4 years or less if nee...

Page 4: ...m 1 40 36mm 1 40 36mm 5 10 130mm 5 10 130mm 13 0 330mm 5 10 130mm 6 5625 167mm 1 20 31mm 1 20 31mm 1 20 31mm 3 25 83mm 3 25 83mm 3 25 83mm 3 25 83mm 1 0 25mm 1 0 25mm 10 5 267mm 1 0 25mm 1 0 25mm 0 75 19mm 0 75 19mm 0 9375 24mm 0 9375 24mm 11 0 279mm 12 5 318mm 13 5 x 13 x 3 25 342 9mm x 330 2mm x 82 55mm Altronix is not responsible for any typographical errors 140 58th Street Brooklyn New York 11...

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