
TIER 4: No Downtime
Distributed Redundant
Dual Input PDU
LBS
UPS 1
Load
STS
Load
STS
Load
Dual Input Load
Utility Source /
Generator #2
Utility Source /
Generator #1
UPS 2
PDU
PDU PDU
PDU PDU
TIER 2
Preserve Data
Load
UPS
PDU
Utility Source
Types of Systems
TIER 1
HW Protection
Load
Utility Source
TVSS and / or
Conditioner
PDU
TIER 3: Increase Uptime
Parallel Redundant
UPS 1
Utility Source w/
ATS & Generator
UPS 2
SCC
PDU
Load
1 + 1 Redundant
Load
PDU
Utility Source w/
ATS & Generator
UPS 2 UPS 1
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