P91 Lead Acid 2U User’s Manual Uninterruptible Power Supply
Xtreme Power Conversion Corporation Page 6
2-2. Operating principle
The operating principle of the UPS is shown as below
EMI/RFI
Filters
Battery
Charger
Battery
DC-to-DC
Converter
Inverter
Rectifier
/PFC
Input
Output
Dynamic
Bypass
The UPS is composed of mains input, EMI/RFI filters, rectifier/PFC, inverter, battery charger, DC-to-DC
converter, battery, dynamic bypass and UPS output.
2-3. Install the UPS
This UPS can be either displayed on the desk or mounted in the 19” rack chassis. Please choose
proper installation to position this UPS.
Rack-mount Installation
Step 1 Step 2
UPS Tower Installation
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