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A-3
Cisco Nexus 7000 Series Hardware Installation and Reference Guide
OL-18634-01
Appendix A Technical Specifications
Power Specifications for the Cisco Nexus 7000 Series Devices
Power Specifications for the Cisco Nexus 7000 Series Devices
The number of power supplies that a Cisco Nexus 7000 Series switch requires depends on the q uantities
and types of modules that you include in the switch chassis. the type of power supply unit that you are
using, and the power redundancy mode that you are using.
The following topics explain how to calculate the device power requirements a nd the amount of power
available for each type of power supply configuration mode:
• Power Requirements for Device Components, page A-3
• Power Supply Configuration Modes, page A-4

Power Requirements for Device Components

To determine the power requirements of the Cisco Nexus 7000 Series switches, add the power
requirements of each of its components. For each component, multiply the number of its modules by its
maximum or typical power requirement. To find the quantities and power requirements for each Cisco
Nexus 7010 switch, see Tabl e A-5. To find the quantities and power requirements for each Cisco Nexus
7018 switch, see Tabl e A-6.
7.5-kW power supply unit 25.5 lbs. (11.6 kg) 2 to 3 341,536
Mid-frame doors and frame
(optional)
—0 or 1 —
1. The predicted mean time between failure (MTBF) is based on the Bellcore Methodology.
Tab l e A-4 Weights, Quantities, and MTBF for the Cisco Nexus 7018 Chassis Components
Component Weight per Unit Quantity MTBF1 (Hours) per Unit
1. The predicted mean time between failure (MTBF) is based on the Bellcore Methodology.
Chassis 187 lbs. (85.0 kg) 1117,858
Supervisor module 10 lbs. (4.5 kg) 279,725
48-port 10/100/1000-Ethernet I/O
module
14 lbs. (6.4 kg) 1 to 16 (mix
of either or
both types
of I/O
modules)
74,373
48-port 1-Gigabit Ethernet I/O
module
15 lbs. (7.7 kg) 74,742
32-port 10-Gigabit Ethernet I/O
module
18.5 lbs. (8.4 kg) 33,652
Fabric module 7.5 lbs. (3.4 kg) 3 to 5 421,088
Fan tray 25.8 lbs. (11.7 kg) 2276,352
6-kW power supply unit 18 lbs. (8.2 kg) 2 to 4 341,536
7.5-kW power supply unit 25.5 lbs. (11.6 kg) 2 to 4 341,536
Front door (optional) —0 or 1 —
Table A-3 Weights, Quantities, and MTBF for the Cisco Nexus 7010 Chassis Components
Component Weight per Unit Quantity MTBF1 (Hours) per Unit