Installation Instructions
Overview:
DPS3 power supply/charger converts low voltage AC input into 6VDC, 12VDC or 24VDC @ 2.5A of continuous supply
current (see specifications). This general purpose power supply has a wide range of applications for access control, security
and CCTV system accessories that require additional power.
Specifications:
Voltage Output/Transformer Selection Table:
Output Voltage
Switch Position
Transformer Requirements
(Recommended Altronix Part #’s)
1 2
6VDC ON OFF 16VAC / 40VA (TP1640)
12VDC OFF OFF 16VAC / 40VA (TP1640, T24130 or T2885)
24VDC OFF ON 28VAC / 100VA (T2885)
Note: Transformers with higher VA ratings may be used for all output voltages above as long as you
do not exceed 28VAC or 45VDC.
Installation Instructions:
The DPS3 should be installed in accordance with The National Electrical Code and all applicable Local Regulations.
1. Mount the DPS3 in desired location.
2. Set DC output voltage with switches (refer to Voltage Output/Transformer Selection Table).
3. Connect proper transformer to terminals marked [AC] (Voltage Output/Transformer Selection Table).
Use 18 AWG or larger for all power connections (Battery, DC output).
Keep power-limited wiring separate from non power-limited wiring (115VAC / 60Hz Input, Battery Wires).
Minimum 0.25” spacing must be provided.
4. Measure output voltage before connecting devices. This helps avoiding potential damage.
5. Connect devices to be powered to terminals marked [+ DC --- ].
6. When the use of stand-by batteries is desired, they must be lead acid or gel type.
Connect battery to the terminals marked [+ BAT --- ] (battery leads included).
Use two (2) 12VDC batteries connected in series for 24VDC operation.
Note: When batteries are not used, a loss of AC will result in the loss of output voltage.
LED Diagnostics:
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. Short circuit or thermal overload condition.
OFF OFF No DC output. Loss of AC. Discharged or no battery present.
Terminal Identification:
DPS3
Power Supply/Charger
Input:
• 6VDC or 12VDC output - use TP1640;
24VDC output - use T2428100.
Output:
• 6VDC, 12VDC or 24VDC selectable output.
• 2.5A continuous supply current.
• Filtered and electronically regulated output.
• Short circuit and thermal overload protection.
Battery Backup:
• Built-in charger for sealed lead acid or gel type batteries.
• Automatic switch over to stand-by battery when AC fails.
• Maximum charge current 0.35A.
• Battery short circuit protection (circuit breaker).
Visual Indicators:
• AC input and DC output LED indicators.
Features:
• Extremely compact design.
• Includes battery leads.
• Snap Track compatible
(order Altronix model number ST3).
Board Dimensions (L x W x H approx.):
3.5” x 3” x 2” (88.9mm x 76.2mm x 50.8mm).