OLS120D2
Dual Output Off-Line Power Supply/Charger
Overview:
OLS120D2 power supply/charger converts a 115VAC, 50/60Hz or 230VAC, 50/60Hz input to a 12VDC/ 24VDC output and a 12VDC fixed output (see specifications). This unit has a wide range of applications for access control and security system accessories that require additional power.
Specifications:
Input:
- Universal input 115VAC, 50/60Hz, 0.95A or 230VAC, 50/60Hz, 0.6A.
- Input fuse rated @ 5A/250V.
Output:
- Output options:
– DC1: 12VDC or 24VDC @ 3A.
DC2: 12VDC @ 1A.
Note: If DC2 is not used, DC1 rating is 12VDC or 24VDC rated @ 4A max. - Filtered and electronically regulated output.
- Short circuit and thermal overload protection.
Supervision:
- AC fail supervision (form “C” contacts).
- Low battery supervision (form “C” contacts).
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 0.7A.
Visual Indicators:
- AC input and DC output LED indicators.
Features:
- Power ON/OFF switch (interrupts mains) (Fig. 1c, pg. 2).
- Includes battery leads.
Board Dimensions (W x L x H):
4.5″ x 7.25″ x 1.75″ (114.3mm x 184.1mm x 44.5mm).
Installation Instructions:
OLS120D2 should be installed in accordance with The National Electrical Code and all applicable Local Regulations.
- Mount the OLS120D2 in the desired location/enclosure.
- Slide [Power ON/OFF] switch to the OFF position (Fig. 1c, pg. 2).
- Set the DC1 output voltage via clip switch – open for 24VDC operation or closed for 12VDC operation (Fig. 1a and 1b, pg. 2).
DC2 output voltage is fixed at 12VDC operation.
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. - 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). - Slide [Power ON/OFF] switch to the ON position (Fig. 1c, pg. 2).
- Measure output voltage across both out terminals marked [- DC1 +, - DC2 +] before connecting devices. This helps avoiding potential damage.
- Slide [Power ON/OFF] switch to the OFF position (Fig. 1c, pg. 2).
- Connect 12VDC or 24VDC (depending on clip switch setting) device to be powered to the terminals marked [- DC1 +].
Connect 12VDC device to be powered to the terminals marked [ – DC2 +] (Fig. 1, pg. 2). - When use of stand-by batteries is desired, they must be lead acid or gel type.
Connect battery/batteries to the terminals marked [- BAT + ] (Fig. 1, pg. 2).
12VDC operation only: Use one (1) 12VDC battery for 12VDC backup.
24VDC and 12VDC simultaneous operation: Use two (2) 12VDC batteries connected in series for 24VDC backup. - When batteries are not used, a loss of AC will result in the loss of output voltage.
- Connect appropriate signaling notification devices to AC Fail & Low battery supervisory relay outputs marked [NC, C, NO].
- Slide [Power ON/OFF] switch to the ON position (Fig. 1c, pg. 2).
Maintenance:
Unit should be tested at least once a year for the proper operation as follows:
Output Voltage Test: Under normal load conditions, the DC output voltage should be checked for proper voltage level.
Battery Test: Under normal load conditions check that the battery is fully charged, check specified voltage (12VDC @ 13.7 or 24VDC @ 27.4) both at the battery terminal and at the board terminals marked [– BAT + ] to ensure that there is no break in the battery connection wires.
Note: Maximum charging current under discharges is 0.7A.
Note: Expected battery life is 5 years; however, it is recommended changing batteries in 4 years or less if needed.
LED Diagnostics:
| Red (DC1) | 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 | Loss of AC. Discharged or no stand-by battery. No DC output. |
Terminal Identification:
| Terminal Legend | Function/Description |
| L, G, N | Connect 115VAC/230VAC to these terminals: L to Hot, N to Neutral, G to ground. |
| – DC1 + | DC1: 12VDC or 24VDC @ 3A and DC2: 12VDC @ 1A Note: If DC2 is not used, DC1 rating is 12VDC or 24VDC rated @ 4A max. |
| – DC2 + | 12VDC @ 1A. |
| AC FAIL NC, C, NO | Indicates loss of AC power, e.g. connect to audible device or alarm panel. Relay normally energized when AC power is present. Contact rating 1A @ 115VAC / 28VDC |
| Low Battery NC, C, NO | Indicates low battery condition, e.g. connect to alarm panel. Relay normally energized when DC power is present. Contact rating 1A @ 115VAC / 28VDC. Low battery threshold: 12VDC output threshold set @ approximately 10.5VDC, 24VDC output threshold set @ approximately 21VDC. |
| – BAT + | Stand-by battery connections. Maximum charge rate 0.7A. |
Altronix is not responsible for any typographical errors. Product specifications are subject to change without notice.
140 58th Street, Brooklyn, New York 11220 USA | phone: 718-567-8181 | fax: 718-567-9056
website: www.altronix.com | e-mail: info@altronix.com | Lifetime Warranty
IIOLS120D2 – Rev. 062113 H30U
Documents / Resources
 |
Altronix OLS120D2 Dual Output Off-Line Power Supply Charger [pdf] Installation Guide OLS120D2, Dual Output Off-Line Power Supply Charger, Off-Line Power Supply Charger, Power Supply Charger, OLS120D2, Supply Charger |
