Overview:
The AL175ULX2 is a power-limited power supply/charger that converts 115VAC / 60Hz input into two individual PTC
protected 12VDC or 24VDC outputs (see specifications). It must be installed in accordance with National and Local Electri-
cal Codes and Regulations.
Specifications:
Power Supply Output Specifications:
Output VDC
Switch Position Max. Stand-by Load DC Max. Alarm Load DC Battery (optional)
12VDC
(Range 10VDC - 13VDC)
SW1 OFF
1.75A
1.75A
12VDC
24VDC
(Range 24VDC - 27VDC)
SW1 ON
1.75A
1.75A
24VDC
Stand-by Specifications:
Output
4 hr. of Stand-by & 5 Minutes of Alarm
12VDC / 7AH Battery
Stand-by = 1.25A
Alarm = 1.25A
24VDC / 7AH Battery
Installation Instructions:
The AL175ULX2 should be installed in accordance with article 760 of The National Electrical Code or NFPA 72 as well
as all applicable Local Codes.
See Terminal Identification Chart on Pg. 3 for a description of each terminal function.
1. Mount AL175ULX2 in the desired location.
2. Connect AC power (115VAC / 60Hz) to the black and white flying leads of the transformer. Secure green wire
lead to earth ground. Use 18 AWG or larger for all power connections (Battery, DC output). Use 22 AWG to
18 AWG for power-limited circuits (trigger inputs, dry outputs).
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. Set the AL175UL to the desired DC output voltage by setting switch SW1 to the appropriate position
(see Power Supply Output Specifications Table above).
4. Measure output voltage before connecting devices. This helps avoiding potential damage.
5. 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.
Agency Listings:
• UL Listed for Access Control Systems (UL294).
CUL Listed - CSA Standard C22.2
No.205-M1983, Signal Equipment.
• MEA - NYC Dept. of Buildings Approved.
• CSFM - California State Fire Marshal Approved.
• Conforms to NFPA 101 life safety codes.
Input:
• Input 115VAC / 60 Hz, 0.6A.
Output:
• Field selectable 12VDC (Range 10VDC - 13VDC) or
24VDC (Range 24VDC - 27VDC) power-limited outputs.
• Class 2 Rated power-limited outputs.
• 1.75A continuous supply current @ 12VDC or 24VDC.
• Filtered and electronically regulated output.
• Short circuit and thermal overload protection.
Battery Backup:
• Maximum charge current: 400mA.
• Automatic switch over to stand-by battery when AC fails.
Supervision:
• AC fail supervision (form “C” contacts).
• Dry trigger output (form “C” contacts).
Fire Alarm Interface:
• Dry trigger input.
Visual Indicators:
• AC input and DC output LED indicators.
Added Features:
• Includes power supply, transformer and enclosure.
Enclosure Dimensions:
15.5” x 12” x 4.5” (393.7mm x 304.8mm x 114.3mm).
Altronix Corp.
140 58th St. Brooklyn, NY
AL175ULX2
Access Control Power Supply/Charger
