Altronix OLS75 Installation Instructions User Manual
Ols75 - offline power supply/charger

Overview:
OLS75 power supply/charger converts 115VAC, 60Hz or 230VAC, 50Hz input, into a 12VDC or 24VDC @ 2.5 amps
of continuous supply current (see specifications). This general purpose power supply has a wide range of application for
access control and security system accessories that require additional power.
Specifications:
Voltage Output Selection Table:
Output VDC
Switch Position
Max. Load DC
12VDC
SW 1 - Closed
2.5 amp
24VDC
SW1 - Open
2.5 amp
Installation Instructions:
The OLS75 should be installed in accordance with The National Electrical Code and all applicable Local Regulations.
1. Mount the OLS75 in the desired location/enclosure.
2. Slide [Power ON/OFF] switch to OFF position.
3. Set the OLS75 to the desired DC output voltage via SW1 (Voltage Output Selection Table).
4. Connect AC power to the terminals marked [L & N], connect ground to the terminal marked [G].
Use 18 AWG or larger for all power connections (Battery, DC output).
Use 22 AWG to 18 AWG for power-limited circuits (AC Fail/Low Battery reporting).
5. Slide [Power ON/OFF] switch to ON position.
6. Measure output voltage before connecting devices. This helps avoiding potential damage.
7. Slide [Power ON/OFF] switch to OFF position.
8. Connect devices to be powered to the terminals marked [– DC +].
9. 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.
10. When batteries are not used, a loss of AC will result in the loss of output voltage.
11. Connect appropriate signaling notification devices to AC Fail & Low battery supervisory
relay outputs marked [NC, C, NO].
12. Slide [Power ON/OFF] switch to ON position.
OLS75 - Offline Power Supply/Charger
Input:
• Universal input 115VAC, 50/60Hz, 0.95 amp
or 230VAC, 50/60Hz, 0.6 amp.
Output:
• 12VDC or 24VDC selectable output.
• 2.5 amp 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 0.5 amp.
• Battery leads included.
Supervision:
• AC fail supervision (form “C” contacts).
• Low battery supervision (form “C” contacts).
Visual Indicators:
• AC input and DC output LED indicators.
Electrical:
• Operating temperature: --- 20º C to 49º C ambient.
• BTU/Hr.: 12VDC: 15.35 BTU/Hr. 24VDC: 30.7 BTU/Hr.
• System AC input VA requirement:
115VAC: 109.25VA. 230VAC: 138VA.
Features:
• Power ON/OFF switch.
Mechanical:
• Board Dimensions (approx. L x W x H):
7.25” x 4.5” x 1.75” (183.9mm x 114.52mm x 44.45mm)