Altronix DPS3 Installation Instructions

Overview:

DPS3 power supply/charger converts low voltage AC input into 6VDC, 12VDC or 24VDC @ 2.5 amp 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:

• Switch selectable 6VDC-12VDC-24VDC.
• 2.5 amp continuous supply current at 6VDC-12VDC-24VDC*.
• Filtered and electronically regulated output.
• Built-in charger for sealed lead acid or gel type batteries.
• Maximum charge current 350mA.
• Automatic switch over to stand-by battery.
• Battery short circuit protection (circuit breaker).
• Thermal overload and short circuit protection.
• AC input and DC output LED indicators.
• Extremely compact design.
• Includes Snap Trac (Altronix model #ST3) and battery leads.
Board Dimensions: 3.5"L x 3"W x 2"H
* Specified at 25˚ C ambient.

Voltage Output/Transformer Selection Table:

Output Voltage
6VDC
12VDC
24VDC
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 .25" spacing must be provided.
4. Measure output voltage before connecting devices. This helps avoid potential damage.
5. Connect devices to be powered to terminals marked [+ DC --- ].
6. When the use of stand-by batteries are desired, they must be lead acid or gel type.
Connect battery to 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)
ON ON
ON OFF
OFF ON
OFF OFF
DPS3 - Power Supply/Charger
Switch Position
1 2
ON OFF
OFF OFF
OFF ON
Power Supply Status
Normal operating condition.
Loss of AC, Stand-by battery supplying power.
No DC output. Short circuit or thermal overload condition.
No DC output. Loss of AC. Discharged or no battery present.
Transformer Requirements
(Recommended Altronix Part #'s)
16VAC / 40VA (TP1640)
16VAC / 40VA (TP1640, T24130 or T2885)
28VAC / 100VA (T2885)
Rev. 042803