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Connect HVAC Power Supply to Power Source
Connect HVAC Power Supply to Power Source
The HVAC power supply has 2 redundant input power lines. It can provide a power output of 6.3 kW from
each input power line with 2 inputs operating, or provide 4.8 kW (30A) or 3.15 kW (20A) output from either
input with one input operating. The HVAC power supply provides n+n or n+x line redundancy mode in a
single power supply for the switch.
The HVAC power supply accepts a maximum of 305VAC or 400VDC input power.
If you are not using power redundancy or are using n+1 power redundancy, you can connect all the power
supplies in the chassis to the same power grid on the rear end of each power tray. If you are using n+n power
redundancy, connect one redundant grid to one of the power supply inputs and the other redundant grid to the
other power supply input on the back of the power tray as shown for each power supply.
Before you begin
• Turn off the power source at its circuit breaker.
• Check that the power switch is set to the STANDBY (0) position on the power tray.
• NXK-HV-6.3KW30A-A: The HVAC power sources are rated for 30A maximum input current.
• NXK-HV-6.3KW20A-A: The HVAC power sources are rated for 20A maximum input current.
Step 1
Choose your power supply (HVAC) and use a Saf-D-Grid power cable to connect to the power supply tray.
Step 2
For HVAC input, connect a Saf-D-Grid AC power cable to the Saf-D-Grid receptacle.
Cisco Nexus 9804 NX-OS Mode Switch Hardware Installation Guide
30
Powering on the Switch
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