OLS20E-Installation -Guide

Overview:
OLS20 power supply/charger converts 115VAC 50/60Hz input into a 12VDC @ 1A or 24VDC @ 0.5A of con-
tinuous supply current (refer to specifications). This general purpose power supply has a wide range of application
for access control and security system accessories that require additional power.
Specifications:
* Specified at 25˚C ambient.
Voltage Output Selection Table:
Output VDC Switch Position Max. Load DC
12VDC SW 1 - ON 1.2A
24VDC SW1 - OFF 0.5A
Installation Instructions:
OLS20 should be installed in accordance with the National Electrical Code and all applicable Local Regulations.
1. Mount the OLS20 in the desired location/enclosure.
2. Set the OLS20 to the desired DC output voltage via SW1 (refer to Voltage Output Selection Table).
3. Connect AC power to connector #1 (Fig. 1) (black & white flying leads) and ground (green flying lead)
Use 18 AWG or larger for all power connections (Battery, AC input).
Keep power-limited wiring separate from non power-limited wiring (115VAC 50/60Hz Input,
Battery Wires). Minimum 0.25” spacing must be provided.
CAUTION: Do not touch exposed metal parts.
Shut branch circuit power before installing or servicing equipment.
There are no user serviceable parts inside. Refer installation and servicing to qualified service personnel.
4. Measure output voltage before connecting devices. This helps avoiding potential damage.
5. Connect devices to be powered to the terminals marked [-- DC +] (Fig. 1).
6. When the use of stand-by batteries is desired, they must be lead acid or gel type.
Connect battery to the terminals marked [-- BAT +] (Fig. 1).
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.
OLS20
Off-Line Power Supply/Charger
Input:
• Input 115VAC 50/60Hz, 0.5 A.
Output:
• 12VDC or 24VDC selectable operation.
• 0.5A continuous supply current @ 24VDC*
1A continuous supply current @ 12VDC*.
• Filtered and electronically regulated outputs.
• Short circuit and thermal overload protection.
Battery Backup:
• Built-in charger for sealed lead acid or
gel type batteries.
Battery Backup (cont’d):
• Maximum charge current 0.3A.
• Automatic switch over to stand-by battery
when AC fails.
Additional Features:
• AC input and DC output LED indicators.
• Operating temperature: -20ºC to 50ºC.
• Includes battery leads.
Board Dimensions (W x L x H approx.):
3” x 2.5” x 1” (76.2mm x 63.5mm x 25.4mm).
MADE IN USA
LGN
--- BAT +
OFF - 24V
ON - 12V
SW1
CO
NNE
C
T
O
R #1
Gr Wh Bk
CONNECTOR #2
CONNECTOR #3
DC
PTC2
VR1
AC
--- DC +
Rd
Bk
Rd
Bk
ON
1
Fig. 1