OnLine Power Telecommunication - Manual (Page 21)

OnLine Power
1-6
REV A
1-6-3 Battery
The batteries are on two level compartments and supplying 96 VDC to UPS. There is an optional Adjunct Battery
Cabinet with 8 batteries that are mounted in two trays, supplying 96 VDC nominal to UPS.
The batteries are mounted on the two level compartments and supplying 96VDC to UPS. Use quantity of 8x120A/H
or 8x100AH batteries. There is a heater option to ensure operation down to -40 degree C. temperature. The total
number of heater pad assembly is 4.
The simplified construction into two major components makes for fast and easy repair of the unit in the field where
the batteries, and Electronics Tray composes the only FRU items within the unit.
Battery
Heater (Optional)
Battery
Heater (Optional)
Connector P3
Thermoprobe
location on the
bottom battery tray
BATTERY TRAY
ILLUSTRATION 1-3
1-6-4 Temperature Compensated Fast Battery Charger (A6-A PCBA)
The Fast Charger will charge the batteries when discharged, as well as to keep the batteries charged. The
recharging time varies based on the backup time and the critical load supported by the batteries during the input
power outage.
The thermoprobe located on bottom battery tray and as shown above in Illustration 1-3, monitors the battery
temperature and compensate the battery charging voltage out of the battery charger. The connector for the
thermoprobe, J3/P3 must be connected at all times. The batteries will be overcharging if J3/P3 connector is left
open and eventually batteries will be damaged, since this condition is not reported by any alarms. When the
temperature at battery case is very low, as sensed by the thermoprobe, the charger will charge the batteries at
higher voltage. When the battery case temperature is sensed high by thermoprobe, the charger reduces the
charging voltage.
1-6-5 External Padlock
The cabinet possesses an external padlock receptacle to prevent unauthorized personnel from gaining access to
the interior of the cabinet via the front door when used in conjunction with a customer supplied padlock.