Cisco Nexus 9508 - Page 20

You must also ensure that the circuit used for the switch is dedicated to the switch to minimize the possibility
of circuit failure. Also, ensure that the switch uses either AC or DC power sources, not a mix of AC and DC
power sources.
When you know the amount of power that is required for operations (available power) and redundancy (reserve
power), you can plan for the required number of input power receptacles within reach of the switch location.
Step 1
Determine the power requirement for the modules in the switch by summing the maximum wattage for each installed
module (see the following table).
MaximumTypicalQuantityComponent
——
1 or 2Supervisor modules
80 W69 W
Supervisor A (N9K-SUP-A)
–
50 W39 W
Supervisor A+ (N9K-SUP-A+)
–
90 W75 W
Supervisor B (N9K-SUP-B) (required for -R line
cards)
–
58 W47 W
Supervisor B+ (N9K-SUP-B+)
–
——
2System Controller modules
25 W13 WSystem Controller (N9K-SC-A)
–
Cisco Nexus 9508 NX-OS Mode Switch Hardware Installation Guide
10
Preparing the Site
Planning for Power Requirements