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Altronix AL201UL Installation Instructions User Manual

Al201ul access control power supply/charger

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Overview:

AL201UL is a power limited power supply/charger that converts a 24VAC / 60Hz plug in Transformer input, into
12VDC output, (refer to specifications). The AL201UL is UL Listed for Burglar Alarm Installation (UL603), and for
Access Control (UL294). It must be installed in accordance with National and Local Electrical Codes and Regulations.

Specifications:

• UL Listed Burglar Alarm and Access Control (UL603, UL294).
• Input 24VAC, 40VA from UL Listed

Class 2 direct plug-in transformer.

• 12VDC power limited, Class 2 output.
• 1.75 amp continuous supply current @ 12VDC.
• Filtered and electronically regulated output.
• Maximum charge current: 400mA.
• Automatic switch over to stand-by battery when

AC fails (zero voltage drop).

• AC fail supervision (form "C" 1 amp @ 28VDC).
• Low battery supervision (form "C" 1 amp @ 28VDC).
• AC input and DC output LED indicators.
• Short circuit and thermal overload protection.
• Includes power supply, enclosure and battery leads.
Enclosure Dimensions: 8”H x 7.25”W x 3.5”D

Power Supply Output Specifications:

Output VDC

Max. Stand-by Load DC

Max. Alarm Load DC

Battery (optional)

12VDC

1.75 amp

1.75 amp

12VDC / 7AH

Stand-by Specifications:

Output

4 hr. of Stand-by &

5 Minutes of Alarm

12VDC / 7 AH Battery

Stand-by = 1.25 amp

Installation Instructions:

The AL201UL should be installed in accordance with The National Electrical Code as well as all applicable Local Codes.
Refer to Terminal Identification Chart on page 2 for a description of each terminal function.
1. Mount the AL201UL in desired location.
2. Connect 24VAC, 40VA UL Listed Class 2 direct plug-in transformer to terminals “XFMR INPUT”.

Use 18 AWG or larger for all power connections (Battery). Use 22 AWG to 18 AWG for power limited circuits
(DC output, AC FAIL and LOW BAT supervisory relays).
Keep power limited wiring separate from non-power limited wiring (Battery Wires).
Minimum .25” spacing must be provided.
Note:
It is important to measure output voltage before connecting devices. This helps avoid potential damage.

3. Connect battery to terminals [+ BAT -] as marked on the unit (battery leads included).
4. 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 AC trouble indicator.
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 are desired, they must be lead acid or gel type.

AL201UL
Access Control Power Supply/Charger

Rev. 021201