Altronix SMP5 User manual

Overview:
The SMP5 High Current Power Supply / Charger will convert a low voltage AC input to a low voltage DC
output. 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 6-12-24VDC.
• 4 amps continuous supply current at 6-12-24VDC*.
• Filtered and electronically regulated output.
• Built-in charger for sealed lead acid or gel type batteries.
• Maximum charge current 300mA.
• Automatic switch over to stand-by battery.
• AC input and DC output LED indicators.
• Thermal overload and short circuit protection.
• Battery short circuit protection (circuit breaker).
• Efficient switch mode design.
• Snap Trac compatible (Altronix model #ST3).
• DIN Rail Mount version available (Altronix model #DPS5).
• Includes battery leads.
• Extremely compact design.
Board Dimensions: 3.5”L x 2.75”W x 1.75H
* Specified at 25˚ C ambient.
Voltage Output/Transformer Selection Table:
Output Voltage Switch Position Transformer Requirements
1 2 (Recommended Altronix Part #’s)
6VDC Closed Open 16VAC / 40 VA (TP1640)
12VDC Open Open 16VAC / 85 VA (T2885 or T24130)
24VDC Open Closed 28VAC / 175 VA (T28140)
Note: Transformers with higher ratings may be used for all output voltages above as long as you
do 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).
Keep power limited wiring separate from non-power limited wiring (115VAC / 60Hz Input, Battery
Wires). Minimum .25” spacing must be provided.
4. Connect devices to be powered to terminals marked [+ DC --- ] .
Note: It is good operating practice to measure and verify output voltage before
connecting devices to ensure proper operation of equipment.
5. 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.
IISMP5 - Rev. 060199
SMP5 - Power Supply/Charger

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:
Terminal Function/Description
Legend
AC/ AC Low voltage AC input (see voltage output/transformer selection table).
For 6VDC output use 16VAC or higher with 40VA power rating or higher.
For 12VDC output use 16VAC or higher with 85VA power rating or higher.
For 24VDC output use 28VAC with 175VA power rating or higher.
Caution: Do not apply voltages above 28 VAC (28VAC is maximum input rating)
+ DC -- 6-12-24VDC @ 4 amps continuous power limited output.
+ BAT -- Stand-by battery connections. Maximum charge rate 300mA.
Altronix Corp.
140 58th Street, Brooklyn, New York 11220 USA, 718-567-8181, fax: [phone]
web site: www.altronix.com, e-mail: [email protected], Lifetime Warranty, Made in U.S.A.
MEMBER
SMP5
ALTRONIX CORP. BKLYN, NY 11220
+ DC -- + BAT -- AC AC AC
DC
MADE IN U.S.A.
SW1 6 V 12 V 24 V
SW1 CLSD OPEN OPEN
SW2 OPEN OPEN CLSD
SW2
Altronix is not responsible for any typographical errors. Product specifications are subject to change without notice.