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2 Product Introduction
This online UPS is a double conversion system comprising rectifier and inverter power
blocks operating in an on-line mode. The rectifier converts the input AC to DC provides the
inverter power source and charges the battery when the line supply is normal. Alternatively,
when the mains supply is disrupted the battery takes over the role to provide the inverter
power without any switching or break in supply. The inverter converts the direct voltage to
AC output for the load use.
This manual is applied for the UPSs(（”XL”Model: Long backup time）) listed as follows.
The model no. is listed on the rear panel of the UPS.
2.1 Description of commonly used symbols:
The following symbols may be used in this manual. It is advisable to familiarize and
understand yourself with them:
Model No. Type Model No. Type
1000H 1000HXL
2000H 2000HXL
3000H 3000HXL
6000H 6000HXL
10000H
Standard
10000HXL
Long backup time
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