Altronix SMP7 Installation Instructions

SMP7 - Power Supply/Charger

Overview:

SMP7 power supply/charger converts low voltage AC input into 12VDC or 24VDC @ 6 amp of continuous supply
current (refer to 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:

• 28VAC/175VA.

Output:

• 12VDC or 24VDC selectable output.

• 6 amp continuous supply current.

• Filtered and electronically regulated output.

• Thermal overload and short circuit protection.

Battery Backup:

Built-in charger for sealed lead acid or gel type batteries.

•

• Maximum charge current 600mA.

• Automatic switch over to stand-by battery when AC fails.

Additional Featur

• AC input and DC output LED indicators.

• Includes batter
Board Dimensions (approximate): 7”L x 4.25”W x 1.75”H

* Specified at 25˚ C ambient.

es:

y leads.

Voltage Output/T

Output VDC Switch Position Max. Load DC Transformer Requirements

12VDC

24VDC SW1 Open 6 amp 24VAC or 28VAC / 175VA ( T2428175)

Installation Instructions:

The SMP7 should be installed in accordance with The National Electrical Code and all applicable Local Regulations.

1. Mount the SMP7 in desired location/enclosure.

2. Set the SMP7 to the desired DC output voltage by setting the switches to the appropriate positions

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er to

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3. Connect proper transformer to terminals marked [AC] (
Use 18 AWG or larger for all power connections (Battery, DC output).
Measure output v

4.

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

LED Diagnostics:

Red (DC)

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 Loss of AC. Discharged or no stand-by battery. No DC output.

ransformer Selection Table:

(Recommended Altr

SW 1 Closed 6 amp 24VAC or 28VAC / 175VA ( T2428175)

e Output/Transformer Selection Table

g

oltage before connecting devices. This helps avoid potential damage.

A

Green (AC) Power Supply Status

).

refer Voltage Output/Transformer Selection Table).

C will result in the loss of output voltage.

onix Part #’s)

Terminal Identification:

+

D C ---

AC

AC AC

+

BAT ---

OPEN = 24V SW1 CLOSED = 12V

DC

RLY1

PTC

J2

Terminal Function/Description
Legend

AC/AC Low voltage AC input (28VAC / 175VA).

Altronix model # T2428175

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-- 12VDC or 24VDC @ 6 amp continuous suppl

+ DC

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+ BAT -- Stand-by battery connections. Maximum charge rate 600mA.

Altronix is not responsible for an

140 58th Street, Brooklyn, New York 11220 USA, 718-567-8181, fax: [phone]
website: www.altronix.com, e-mail: [e-mail], Lifetime Warranty, Made in U.S.A.
IISMP7 - Rev. 110606 K06F

raphical errors. Product specifications are subject to change without notice.

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