Cisco Nexus 7000 Hardware Installation And Reference Manual page 166

Connecting a DC Power Supply to DC Power Sources
Figure 6-4
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3-kW DC power supply
2 DC power grid
3 Redundant power supply
Cisco Nexus 7000 Series Hardware Installation and Reference Guide
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Connecting DC Power Supplies to the Grid for Power Supply [N+1] Redundancy
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4
6-kW DC power supply
5 Connection for available power (for a minimum of 3 kW)
6 Power supply redundancy connection (power connection at least equals the
power connection for any power supply providing available power)
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6
3
Chapter 6 Installing Power Supplies
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