Installation Instructions

- 2 - OLS120D2X
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 0.7 amp.
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@3ampandDC2-12VDC@1amp
Note:IfDC2isnotused,DC1ratingis12VDCor24VDCrated@4ampmax.
– DC2 + 12VDC@1amp.
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1amp@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1amp@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 0.7 amp.