2. Installation and setup
NOTE: Inspect the UPS prior to installation for shipping damage and store the original
packaging in a safe place for future use.
2-1. Rear panel view
IEC Type
1. Programmable outlets: connect to non-critical loads.
2. Output receptacles: connect to mission-critical loads.
3. AC input
4. Network/Fax/Modem surge protection
5. USB communication port
6. RS-232 communication port
7. SNMP intelligent slot (Pre-installed)
8. Emergency power off function connector (EPO)
9. External battery connection
2-2. Operating principle
The operating principle of the UPS is shown as below
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.
Input
EMI/RFI
Filters
NEMA Type
Dynamic
Bypass
Rectifier
/PFC
DC-to-DC
Converter
Battery
Battery
Charger
4
Output
The UPS is composed of
Inverter
EMI/RFI filters, rect
inverter, battery charg
converter, battery, dynam
UPS output.