Altronix SMP5 Manual

Overview:

SMP5 power supply/charger converts low voltage AC input into 6VDC, 12VDC or 24VDC @ 4 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:

Input:

• 16VAC to 28VAC (see transformer selection table).

Output:

• 6VDC, 12VDC or 24VDC selectable output.
• 4 amp continuous supply current*.
• Thermal overload and short circuit protection.
• Filtered and electronically regulated output.

Battery Backup:

• Built-in charger for sealed lead acid or gel type batteries.
• Maximum charge current 300mA.
• Automatic switch over to stand-by battery.
• Battery short circuit protection (PTC).

Additional Features:

• AC input and DC output LED indicators.
• Extremely compact design.
• Includes battery leads.
• Snap Trac compatible (Altronix model #ST3).
• DIN Rail Mount version available (order Altronix model #DPS5).
Board Dimensions (approximate): 3.5"L x 2.75"W x 1.75"H
* Specified at 25˚ C ambient.

Voltage Output/Transformer Selection Table:

Output Voltage Switch Position
SW1
6VDC Closed/On Open/Off 16VAC / 40VA (TP1640)
12VDC Open/Off
24VDC Open/Off
Note: Transformers with higher power (VA) ratings may be used for all output voltages selected above
provided the input voltage does not exceed 28VAC or 45VDC.

Installation Instructions:

The SMP5 should be installed in accordance with The National Electrical Code and all applicable Local Regulations.
1. Mount the SMP5 in desired location / enclosure.
2. Set DC output voltage with switches (refer to Voltage Output/Transformer Selection Table).
3. Connect proper transformer to terminals marked [AC] (see Voltage Output/Transformer Selection Table).
Use 18 AWG or larger for all power connections (Battery, DC output).
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.
SMP5 - High Current Power Supply/Charger
Transformer Requirements
SW2 (Recommended Altronix Part #'s)
Open/Off 28VAC or 28VAC / 100VA (T2428100), or 16VAC / 100 VA (T16100)
Closed/On 28VAC / 175VA (T2428175)