The Cisco Nexus™ 7000 Series Power Supply Modules (Figures 1 and 2) deliver fault tolerance, high efficiency, load sharing, and hot-swappable features to the Cisco Nexus 7000 Series. Each Cisco Nexus 7000 Series chassis can accommodate multiple power supplies providing both chassis-level and facility power fault tolerance.
The variable output power supplies scale from 3000 to 7500 watts (W) and support multiple system-level redundancy options for greater availability. Designed to address high-availability requirements, the power supplies incorporate internal component-level monitoring, temperature sensors, and intelligent remote-management capabilities.
The power supply modules are fully hot swappable, helping ensure no system interruption for installation or upgrades, and they are fitted at the back of the Cisco Nexus 7000 Series Chassis, allowing installation and removal without disturbing the network cabling on the front.
Figure 1. Cisco Nexus 7000 6.0kW AC Power Supply Module
Figure 2. Cisco Nexus 7000 7.5kW AC Power Supply Module
Cisco Nexus 7000 Series power supplies are more than 90 percent efficient, so less power is wasted as heat and more power is available for the system to use than with typical power supplies
Cisco Nexus 7000 6.0kW AC Power Supply
The 6.0kW AC power supply module for the Cisco Nexus 7000 Series is a dual 20-ampere (A) AC input power supply. When both inputs are at high line (220 VAC) nominal voltage, then the power output is 6000W. Connecting to low line (110 VAC) nominal voltage or using just one input will produce lower output power levels. Table 1 shows the available power output for the input options.
Table 1. Available Output Based on Input Power
Number of Inputs
Input Power
Output
Single input
220 volts (V)
3000W
110V
1200W
Dual input
220V
6000W
110V
2400W
Dual input
110 and 220V
4200W
Cisco Nexus 7000 7.5kW AC Power Supply
The 7.5kW AC power supply module for the Cisco Nexus 7000 Series is a dual 30A AC input unit. The AC power cords for the 7500W power supply are hard wired directly to the power supply. When both inputs are connected, the output power is 7500W. If less power is required when just one input is connected, the power output is 3750W. Table 2 shows the power output provided by one Cisco Nexus 7000 7.5kW AC Power Supply Module. Two versions of the 7.5kW AC power supply are available: US and Japan, and International.
Table 2. Available Output Based on Input Power
Number of Inputs
Input Power*
Output Power
Single input
220V
3750W
Dual input
220V
7500W
* Only a high line input is supported.
Cisco Nexus 7000 Series Power Supply Redundancy
The Cisco Nexus 7000 Series Chassis supports multiple load-sharing, fault-tolerant, and hot-swappable power supplies. As few as just one power supply can be used to operate a chassis. Using multiple power supplies provides additional power capacity and resilience after failure of the power supply, the generating supply itself, or a facility component such as a Uninterruptible Power Supply (UPS) or a circuit breaker.
Cisco Nexus 7000 Series systems can operate in four user-configurable power-redundancy modes, summarized in Table 3, to meet the redundancy needs of the environment.
Table 3. Power Redundancy Modes
Redundancy Mode
Description
Combined
No redundancy; power available to the system is the sum of power outputs of all power supplies in the chassis
Power supply redundancy (N+1)
Guards against failure of one of the power supplies; power available to the system is the sum of the two least-rated power supplies
Input source redundancy
(grid redundancy)
Guards against failure of one input circuit (grid); for grid redundancy, each input on the power supply is connected to an independent AC feed, and power available to the system is the minimum power from either of the input sources (grids)
Power supply and input source redundancy
(full redundancy)
System default redundancy mode; guards against failure of either one power supply or one AC grid, and power available is always the minimum of input source and power supply redundancy
The total amount of power available to the Cisco Nexus 7000 Series system depends on the types of power supplies installed, the number of connected inputs, and the configured power supply redundancy mode. Table 4 shows the maximum available power for each redundancy mode for the 6.0kW and 7.5kW power supplies.
Table 4. Maximum Total Output Power by Redundancy Mode
Power Supply Type
Number of Power Supplies
Power Supply Redundancy Mode
Combined
N+1
Grid
Full
6.0kW
1
6000W
6000W*
6000W*
6000W*
2
12,000W
6000W
6000W
6000W
3
18,000W
12,000W
9000W
9000W
4
24,000W
18,000W
12,000W
12,000W
7.5kW
1
7500W
7500W*
7500W*
7500W*
2
15,000W
7500W
7500W
7500W
3
22,500W
15,000W
11,250W
11,250W
4
30,000W
22,500W
15,000W
15,000W
Note: A maximum of three power supplies are supported on the Cisco Nexus 7000 Series 10-slot Switch and four power supplies on the Cisco Nexus 7000 Series 18-slot Switch.
Mixed combinations of the 6.0kW and 7.5kW power supplies is supported. The power redundancy modes are designed to determine the optimum power for the combination of power supplies installed, helping ensure system availability.
The 6.0kW power supply supports operation with 110 and 220V inputs on either or both of the two inputs, which results in different levels of output power for the different redundancy modes.
Table 5 shows the maximum system output power that can be drawn from three 6kW power supplies in a chassis with different combinations of input voltage and redundancy modes.
Table 5. Maximum Total Output Power for Three 6kW Power Supply Units
Power Supply Input
Redundancy Mode
Combined
Power Supply
Input Source
Full
Single input
220V
9000W
6000W
9000W*
6000W*
110V
3600W
2400W
3600W*
2400W*
Dual input
220V
18,000W
12,000W
9000W
9000W
110V
7200W
4800W
3600W
3600W
Dual input
110 and 220V
12,600W
8400W
3600W
3600W
* Alarm and syslog messages are generated stating that there is no redundancy.
Table 6 shows the maximum system output power that can be drawn from four 6kW power supplies in a chassis with different combinations of input voltage and redundancy modes.
Table 6. Maximum System Output Power for Four 6kW Power Supply Units
Power Supply Input
Redundancy Mode
Combined
Power Supply
Input Source
Full
Single input
220V
12,000W
9000W
12,000W*
9000W*
110V
4800W
3,,600W
3600W*
2400W*
Dual input
220V
18,000W
12,000W
9000W
9000W
110V
7200W
4800W
3600W
3600W
Dual input
110 and 220V
12,600W
8400W
3600W
3600W
* Alarm and syslog messages are generated stating that there is no redundancy.
Features and Benefits
Table 7 summarizes the features and benefits of the Cisco Nexus 7000 Series Power Supply Modules.
Table 7. Features and Benefits
Feature
Benefit
Multiple inputs
Provide redundancy within the power supply unit; if one input fails, power is still drawn from the other input
Universal input (110 to 240 VAC and 50 to 60 hertz [Hz]) (6000W only)
• Flexibility to provision circuits with either high-input voltage (200 to 240V) or low-input voltage (100 to 120V), depending on availability and power output needs
• Capability to connect one input with a 220V line and the other with a 110V line
Compatible with future Cisco Nexus 7000 Series Chassis
Provides investment protection and ease of sparing across different members of the product family
Hot swappable
Enables continuous system operations; no downtime when replacing power supply (assuming that the remaining power supplies can provide enough power to support the system)
Temperature sensor and instrumentation
Measures internal temperature and shuts down the power supply if temperature exceeds thresholds; prevents damage due to overheating of power supply unit
Internal fault monitoring
Detects short circuits and component failures within the power supply unit; if a failure is found, the unit is shut down
Intelligent remote management
Users can remotely power cycle one or all power supplies using the supervisor command-line interface (CLI), enabling remote management and improving operational efficiency (not available at initial software release)
Real-time power draw
Shows real-time actual power consumption (not available at initial software release)
Variable fan speed
Allows reduction in fan speed for lower power use in well-controlled environments while helping ensure sufficient system cooling capacity
Product Specifications
Table 8 lists production specifications for the Cisco Nexus 7000 Series AC Power Supply Modules, and Tables 9 and 10 lists the cable specifications.
Table 8. Product Specifications
Specification
Power Supply
6.0kW AC Power Supply
7.5kW AC Power Supply
Chassis compatibility
• Cisco Nexus 7010 (up to 3)
• Cisco Nexus 7018 (up to 4)
Software compatibility
Cisco® NX-OS Software Release 4.0 and later
Cisco NX-OS Software Release 4.1(2) and later
Physical specifications
• (H x W x D): 8.51* x 4 x 17.5 in. (21.6 x 10.1 x 44.5 cm)
• Weight: 18 lb (8.2 kg)
• * The height of the power supply unit is not uniform along the entire depth. The height at the front and rear are 8.51 and 4.2 in. (21.6 and 10.7 cm) respectively.
• (H x W x D): 8.51* x 4 x 17.5 in. (21.6 x 10.1 x 44.5 cm)
• Weight: 23 lb (10.5 kg)
• * The height of the power supply unit is not uniform along the entire depth. The height at the front and rear are 8.51 and 4.2 in. (21.6 and 10.7 cm) respectively.
Input voltage range
90 to 264 VAC
170 to 264V AC
Input frequency range
47 to 63 Hz
47 to 63 Hz
Input current (each input)
16A maximum at nominal line voltage (110 or 220 VAC)
24A maximum at nominal line voltage (220 VAC)
Power supply input receptacles
International Electrotechnical Commission (IEC) 320-C19
IEC 60309 for INT
NEMA L6-30 for US
Power cord rating
16A
24A
British thermal units (BTUs)
• 23,000 BTUs per hour at 6000W
• 16,500 BTUs per hour at 4200W
• 11,500 BTUs per hour at 3000W
• 9900 BTUs per hour at 2400W
• 4950 BTUs per hour at 1200W
• 28500 BTUs per hour at 7500W
• 14200 BTUs per hour at 3750W
Mean time between failure (MTBF)
341,356 hours
204,053 hours
Output holdup time
20 milliseconds (ms) minimum
Cooling fan
Integrated
Environmental conditions
• Operating temperature: 32 to 104°F (0 to 40°C)
• Storage temperature: -40 to 185°F (-40C to 85°C)
• Relative humidity operating, noncondensing: 10 to 90%
• Relative humidity nonoperating, noncondensing: 10 to 95%
Regulatory compliance
• EMC compliance
• FCC Part 15 (CFR 47) (USA) Class A
• ICES-003 (Canada) Class A
• EN55022 (Europe) Class A
• CISPR22 (International) Class A
• AS/NZS CISPR22 (Australia and New Zealand) Class A
• Telecommunications Carrier Group (TCG) Checklist
• Qwest NEBS requirements
• Telecommunications Carrier Group (TCG) Checklist
• ATT NEBS requirements
• ATT TP76200 level 3 and TCG Checklist
• ETSI
• ETS 300 019-1-1, Class 1.2 Storage
• ETS 300 019-1-2, Class 2.3 Transportation
• ETS 300 019-1-3, Class 3.2 Stationary Use
• Reduction of Hazardous Substances (ROHS) 5
Safety compliance
• Ul/CSA/IEC/EN 60950-1
• AS/NZS 60950
LED indicators
• Green "Input 1 OK" LED: On when AC voltage in input 1 is within the valid range.
• Green "Input 2 OK" LED: On when AC voltage in input 2 is within the valid range.
• Green "Output OK" LED: On when the DC outputs are within the valid range and stable.
• Red "Fault" LED: On and blinking when the power supply's internal self-diagnostics have failed or any other power supply failure has occurred.
• Blue "ID" LED: On and blinking when the operator has flagged this card for identification.
Reliability and availability
Capable of online insertion and removal (OIR)
MIBs
Supports Simple Network Management Protocol Versions 3, 2, and 1 (see Cisco NX-OS Software release notes for details about specific MIB support)
Warranty
Cisco Nexus 7000 Series Switches come with the standard Cisco 1-Year Limited Hardware Warranty
Table 9. 6kW AC Power Supply Cable Specifications
Locale
Part Number
Cord Length
Plug Type Wall Appliance
Wall Plug Rating
Australia and New Zealand
CAB-AC-16A-AUS
14 ft (4.3m)
AU20S3
250 VAC, 16A
People's Republic of China
CAB-AC16A-CH
14 ft (4.3m)
GB16C
250 VAC, 16A
Continental Europe
CAB-AC-2500W-EU
14 ft (4.3m)
CEE 7/7
250 VAC, 16A
International
CAB-AC-2500W-INT
14 ft (4.3m)
IEC 309
250 VAC, 16A
Israel
CAB-AC-2500W-ISRL
14 ft (4.3m)
SI16S3
250 VAC, 16A
Japan and North America (nonlocking) 200 to 240 VAC operation
CAB-AC-2500W-US1
14 ft (4.3m)
NEMA 6-20
250 VAC, 16A
Japan and North America (locking) 200 to 240 VAC operation
CAB-AC-C6K-TWLK
14 ft (4.3m)
NEMA L6-20
250 VAC, 16A
Japan and North America 100 to 120 VAC operation*
CAB-7513AC
14 ft (4.3m)
NEMA 5-20
125 VAC, 20A
Power distribution unit (PDU)**
CAB-C19-CBN
14 ft (4.3m)
IEC 60320 C19
IEC 60320 C20
250 VAC, 16A
Switzerland
CAB-ACS-16
14 ft (4.3m)
SEV 5934-2
Type 23
250 VAC, 16A
* The 6000W power supply operating with dual 110 VAC delivers 2400W.
** The PDU power cable is designed for users who power their switches from a PDU. The end of the cable that plugs into the Cisco Nexus 7000 Series Switch chassis has a C19 connector; the other end of the cable that plugs into the PDU has a C20 connector.
1For Japan, ask your local electrical contractor to prepare the NEMA L6-30 power plug.
Ordering Information
To place an order, visit the Cisco Ordering homepage. To download software, visit the Cisco Software Center. Table 11 provides ordering information.
Table 11. Ordering Information
Product Name
Part Number
Cisco Nexus 7000 6.0kW AC Power Supply Module
N7K-AC-6.0KW
Cisco Nexus 7000 7.5kW AC Power Supply Module International (Cable Included)
N7K-AC-7.5KW-INT
Cisco Nexus 7000 7.5kW AC Power Supply Module US (Cable Included)
N7K-AC-7.5KW-US
Power Cord, 250 VAC, 16A, Australia C19
CAB-AC-16A-AUS
16A AC Power Cord For China
CAB-AC16A-CH
Power Cord, 250 VAC, 16A, Europe
CAB-AC-2500W-EU
Power Cord, 250 VAC, 16A, International
CAB-AC-2500W-INT
Power Cord, 250 VAC, 16A, Israel
CAB-AC-2500W-ISRL
Power Cord, 250 VAC, 16A, twist lock NEMA L6-20 plug, United States
CAB-AC-C6K-TWLK
Power Cord, 250 VAC, 16A, straight blade NEMA 6-20 plug, United States
CAB-AC-2500W-US1
AC Power Cord, North America (110V)
CAB-7513AC
Cabinet Jumper Power Cord, 250 VAC 16A, C20-C19 Connectors
CAB-C19-CBN
AC Power Cord (Swiss) 16A
CAB-ACS-16
Cisco Nexus 7000 7.5kW AC Power Supply Module US (Cable Included)
N7K-AC-7.5KW-US
Power Cord, 250 VAC, 16A, Australia C19
CAB-AC-16A-AUS
Service and Support
Cisco offers a wide range of services to help accelerate your success in deploying and optimizing Cisco Nexus 7000 Series Switches in your data center. Cisco's innovative services are delivered through a unique combination of people, processes, tools, and partners and are focused on helping you increase operational efficiency and improve your data center network. Cisco Advanced Services use an architecture-led approach to help you align your data center infrastructure to your business goals and achieve long-term value. Cisco SMARTnet® Service helps you resolve mission-critical problems with direct access any time to Cisco network experts and award-winning resources. With this service, you can take advantage of the Smart Call Home service capability, which offers proactive diagnostics and real-time alerts on your Cisco Nexus 7000 Series Switches. Spanning the entire network lifecycle, Cisco services help increase investment protection, optimize network operations, provide migration support, and strengthen your IT expertise. For more information about Cisco Data Center Services, visit http://www.cisco.com/go/dcservices.
For More Information
For more information about the Cisco Nexus 7000 Series, visit the product homepage at http://www.cisco.com/go/nexus or contact your local account representative.
