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Cisco Nexus 7000 Series Site Preparation Guide

June 23, 2008

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HE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE. ALL STATEMENTS, INFORMATION, AND RECOMMENDATIONS IN THIS MANUAL ARE BELIEVED TO BE ACCURATE BUT ARE PRESENTED WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED. USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR APPLICATION OF ANY PRODUCTS.

THE SOFTWARE LICENSE AND LIMITED WARRANTY FOR THE ACCOMPANYING PRODUCT ARE SET FORTH IN THE INFORMATION PACKET THAT SHIPPED WITH THE PRODUCT AND ARE INCORPORATED HEREIN BY THIS REFERENCE. IF YOU ARE UNABLE TO LOCATE THE SOFTWARE LICENSE OR LIMITED WARRANTY, CONTACT YOUR CISCO REPRESENTATIVE FOR A COPY.

The following inform ation is for FCC compliance of Class A devices: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio-frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case users will be required to correct the interference at their own expense.

The following information is for FCC compliance of Class B devices: The equipment described in this manual generates and may radiate radio-frequency energy. If it is not installed in accordance with Cisco’s installation instructions, it may cause interference with radio and television reception. This equipment has been tested and found to comply with the limits for a Class B digital device in accordance with the specifications in part 15 of the FCC rules. These specifications are designed to provide reasonable protection against such interference in a residential installation. However, there is no guarantee that interference will not occur in a particular installation.

Modifying the equipment without Cisco’s written authorization may result in the equipment no longer complying with FCC requirements for Class A or Class B digital devices. In that event, your right to use the equipment may be limited by FCC regulations, and you may be required to correct any interference to radio or television communications at your own expense.

You can determine whether your equipment is causing interference by turning it off. If the interference stops, it was probably caused by the Cisco equipment or one of its peripheral devices. If the equipment causes interference to radio or television reception, try to correct the interference by using one or more of the following measures:

• Turn the television or radio antenna until the interference stops.

• Move the equipment to one side or the other of the television or radio.

• Move the equipment farther away from the television or radio.

• Plug the equipment into an outlet that is on a different circuit from the television or radio. (That is, make certain the equipment and the television or radio are on circuits controlled by different circuit breakers or fuses.)

Modifications to this product not authorized by Cisco Systems, Inc. could void the FCC approval and negate your authority to operate the product.

The Cisco implementation of TCP header compression is an adaptation of a program developed by the University of California, Berkeley (UCB) as part of UCB’s public domain version of the UNIX operating system. All rights reserved. Copyright © 1981, Regents of the University of California.

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All other trademarks mentioned in this document or Website are the property of their respective owners. The use of the word partner does not imply a partnership relationship between Cisco and any other company. (0805R)

Any Internet Protocol (IP) addresses used in this document are not intended to be actual addresses. Any examples, command display output, and figures included in the document are shown for illustrative purposes only. Any use of actual IP addresses in illustrative content is unintentional and coincidental.

Cisco Nexus 7000 System Site Preparation Guide

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Preface v

Audience v

Document Organization v

Document Conventions v

Preface

This preface describes the audience, organization, and conventions of the Cisco Nexus 7000 Series Site Preparation Guide. It also provides information on how to obtain related documentation.

Audience

This guide is intended for anyone who plans the facilities, including space, floor weighting, power, cooling, cabling, delivery, and storage, for the installation of the Cisco Nexus 7000 Series 10-slot chassis.

Document Organization

This document is organized into the following chapters:

Chapter Description

Chapter 1, “Overview” Provides an overview of the Nexus 7010 system.

Chapter 2, “Preparing the Site” Describes the basic site requirements for installing

Chapter 3, “Technical Specifications” Describes the technical specifications for the

Chapter A, “Site Preparation and Maintenance Records”

Chapter B, “Cabinet and Rack Requirements” Describes the cabinet and rack requirements for the

Document Conventions

Notes use the following conventions:

the Nexus 7010 system.

Nexus 7010 system.

Provides a site planning list to prepare your site for the Nexus 7010 system.

Nexus 7010 system.

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Note Means reader take note. Notes contain helpful suggestions or references to material not covered in the

publication.

Cisco Nexus 7000 System Site Preparation Guide

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Caution Means reader be careful. In this situation, you might do something that could result in equipment

damage or loss of data.

Overview

The Cisco Nexus 7000 Series devices support end-to-end data center connectivity, consolidating IP, storage, and interprocess communication (IPC) networks onto a single Ethernet fabric. The Cisco Nexus 7000 Series features a 10-slot chassis that provides front-to-back airflow and an integrated cable management system that facilitates device installation, operation, and cooling in both new and existing data centers. This chapter provides an overview of the Nexus 7010 system features.

The Nexus 7000 Series has a 10-slot chassis that can support a maximum of two supervisor modules and up to eight I/O modules.

Table 1-1 describes the features of the Nexus 7010 system.

Ta b l e 1-1 Nexus 7010 System Features

Feature Description

Chassis 10-slot chassis for holding supervisor and I/O modules,

system and fabric fan trays, fabric modules, and power supplies.

Supervisor Modules 1–2—shipped in the chassis.

I/O Modules 0–8—shipped in the chassis.

System Fan Tray 2—shipped in the chassis.

Fabric Fan Tray 2—shipped in the chassis.

Fabric Modules 3–5—shipped in the chassis.

Power Supplies 2–3—shipped with the chassis but boxed separately.

1. The quantity of modules and fan trays shipped with the chassis will vary depending on your order.

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For information about preparing your site for the Nexus 7000 Series devices, see Chapter 2, “Preparing

the Site.”

For information about installing the Nexus 7000 Series devices, see the Cisco Nexus 7000 Series

Hardware Installation and Reference Guide. For translations of the warnings in that guide, see the Cisco Nexus 7000 Series Regulatory Compliance and Safety Information document.

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Chapter 1 Overview

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CHAPTER

Preparing the Site

This chapter describes the basic site requirements that you should be aware of as you prepare to install your Nexus 7000 Series devices.

This chapter includes the following sections:

• About the Nexus 7000 Series, page 2-1

• Temperature, page 2-2

• Humidity, page 2-2

• Altitude, page 2-2

• Dust and Particles, page 2-3

• Corrosion, page 2-3

• Electromagnetic and Radio Frequency Interference, page 2-3

• Shock and Vibration, page 2-4

• Grounding, page 2-4

• Power Source, page 2-4

About the Nexus 7000 Series

Environmental factors can adversely affect the performance and longevity of your system. The Nexus 7000 Series devices require a dry, clean, well-ventilated, and air-conditioned environment. To ensure normal operation, you must maintain ambient airflow. If the airflow is blocked or restricted and or if the intake air is too warm, an overtemperature condition can occur and the environmental monitor on the system will shut down to protect the system components.

You can mount up to two chassis in a rack with little or no clearance above and below the chassis. You must, however, have enough room in front for loading the chassis using a mechanical lift and enough room in the rear for removing the system components. When mounting the chassis in a rack with other equipment, ensure that the exhaust from other equipment does not blow into the air intake vent of the chassis. If your site has warm and cold aisles, align the rack or cabinet air intake to a cold aisle and exhaust to a warm aisle.

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Chapter 2 Preparing the Site

Temperature

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Temperature

When you install the Nexus 7000 Series, make sure that the system has adequate airflow from front to back and do not block the air inlet or the air exhaust.

Temperature extremes can cause the Nexus 7000 Series devices to operate at reduced efficiency and cause a variety of problems, including premature aging and failure of chips, and failure of devices. Extreme temperature fluctuations can cause chips to become loose in their sockets. The Nexus 7000 Series devices should be operating in an environment that is not colder than 41°F (5°C) or hotter than 104°F (40°C).

Make sure that the chassis has adequate ventilation; do not place the chassis next to a heat source of any kind, including heating vents during winter.

Adequate ventilation is particularly important at high altitudes. Make sure that all slots and openings on the system remain unobstructed, especially the fan vents on the chassis. Clean the installation site at regular intervals to avoid buildup of dust and debris, which can cause a system to overheat. If the Nexus 7000 series was exposed to abnormally cold temperatures, allow a 2-hour warm-up period to bring it up to a normal operating temperature before you turn the system on. Otherwise, you can damage the internal components.

Note The Nexus 7000 Series devices is equipped with internal air temperature sensors that trigger a minor

Humidity

Altitude

alarm at 104°F (40°C) and a major alarm at 131°F (55°C).

High humidity conditions can cause moisture to seep into the Nexus 7000 Series devices. Moisture can cause corrosion of internal components and degradation of properties such as electrical resistance, thermal conductivity, physical strength, and size. The Nexus 7000 Series is rated to operate at 8 to 80 percent relative humidity, with a humidity gradation of 10 percent per hour.

The Nexus 7000 Series devices can withstand from 5 to 90 percent relative humidity when you store it. Buildings in which climate is controlled by air-conditioning in the warmer months and by heat during the colder months usually maintain an acceptable level of humidity for system equipment. However, if a Nexus 7000 Series device is located in an unusually humid location, you can use a dehumidifier to maintain the humidity within an acceptable range.

If you operate a Nexus 7000 Series device at a high altitude (low pressure), the efficiency of forced and convection cooling is reduced and can result in electrical problems that are related to arcing and corona effects. This condition can also cause sealed components with internal pressure, such as electrolytic capacitors, to fail or to perform at a reduced efficiency. The Nexus 7000 Series is rated to operate at altitudes from –500 to 13,123 feet (–152 to 4,000 meters). You can store the system at altitudes of –1,000 to 30,000 feet (–305 to 9,144 meters).

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Chapter 2 Preparing the Site

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Dust and Particles

Exhaust fans cool power supplies and system fan trays cool systems by drawing in air and exhausting air out through various openings in the chassis. However, fans also ingest dust and other particles, causing contaminant buildup in the system and increased internal chassis temperature. A clean operating environment can greatly reduce the negative effects of dust and other particles, which act as insulators and interfere with the mechanical components in the system.

Note You can use an optional air filter if you install a Nexus 7000 series device in a nonclean environment.

In addition to regular cleaning, follow these precautions to avoid contamination of your equipment:

• Do not permit smoking near the Nexus 7000 Series device.

• Do not permit food or drink near the Nexus 7000 Series device.

Corrosion

Dust and Particles

The corrosion of system connectors is a gradual process that can eventually lead to intermittent failures of electrical circuits. The oil from your fingers or prolonged exposure to high temperature or humidity can corrode the gold-plated edge connectors and pin connectors on various components in the Nexus 7000 Series devices. To prevent corrosion, avoid touching contacts on modules and protect the system from extreme temperatures and moist, salty environments.

Electromagnetic and Radio Frequency Interference

Electromagnetic interference (EMI) and radio frequency interference (RFI) from the Nexus 7000 Series can adversely affect devices such as radio and television (TV) receivers operating near the system. Radio frequencies that emanate from the Nexus 7000 Series device can also interfere with cordless and low-power telephones. Conversely, RFI from high-power telephones can cause spurious characters to appear on the system monitor.

RFI is defined as any EMI with a frequency above 10 kHz. This type of interference can travel from the system to other devices through the power cable and power source or through the air like transmitted radio waves. The Federal Communications Commission (FCC) publishes specific regulations to limit the amount of EMI and RFI emitted by computing equipment. Each Nexus 7000 Series device meets these FCC regulations.

To reduce the possibility of EMI and RFI, follow these guidelines:

• Cover all open expansion slots with a metal filler.

• Always use shielded cables with metal connector shells for attaching peripherals to the system.

When wires are run for any significant distance in an electromagnetic field, interference can occur between the field and the signals on the wires and cause the following implications:

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• Bad wiring can result in radio interference emanating from the plant wiring.

• Strong EMI, especially when it is caused by lightning or radio transmitters, can destroy the signal

drivers and receivers in the chassis and even create an electrical hazard by conducting power surges through lines into equipment.

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Chapter 2 Preparing the Site

Shock and Vibration

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Note To predict and prevent strong EMI, you might need to consult experts in radio frequency interference

(RFI).

The wiring is unlikely to emit radio interference if you use twisted-pair cable with a good distribution of grounding conductors. If you exceed the recommended distances, use a high-quality twisted-pair cable with one ground conductor for each data signal when applicable.

If the wires exceed the recommended distances, or if wires pass between buildings, give special consideration to the effect of a lightning strike in your vicinity. The electromagnetic pulse caused by lightning or other high-energy phenomena can easily couple enough energy into unshielded conductors to destroy electronic devices. You may want to consult experts in electrical surge suppression and shielding if you had similar problems in the past.

Shock and Vibration

The Nexus 7000 Series has been shock- and vibration-tested for operating ranges, handling, and earthquake standards to Network Equipment Building Standards (NEBS) Zone 4 per GR-63-Core.

Grounding

The Nexus 7000 Series is sensitive to variations in voltage supplied by the AC-power source. Overvoltage, undervoltage, and transients (or spikes) can erase data from the memory or cause components to fail. To protect against these types of problems, you should always properly ground power cables.

Power Source

You should use a dedicated power circuit (rather than sharing a circuit with other heavy electrical equipment). We recommend that the Nexus 7000 Series have two separate AC-power sources. For each power supply, connect each of its AC-power cables to an independent power source.

Before you connect the power supplies to the AC power, you must install the power supplies in the Nexus 7010 chassis and you must have one 20A AC receptacle for each power cable that you need to connect to the Nexus 7010 power supplies. Each receptacle should be on a separate circuit and should be located on the rack within reach of the power cables when they are attached to the power supplies.

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CHAPTER

Technical Specifications

This chapter describes the technical specifications for the Nexus 7010 system and includes these sections:

• Environmental Specifications for the Nexus 7010 System, page 3-1

• Physical Specifications for the Nexus 7010 System, page 3-2

• Power Specifications for the Nexus 7010 System, page 3-2

• Facility Cooling Requirements, page 3-5

• Chassis Airflow, page 3-5

Environmental Specifications for the Nexus 7010 System

Table 3-1 lists the environmental specifications for the Nexus 7010 system.

Ta b l e 3-1 Environmental Specifications for the Nexus 7010 System

Description Specification

Temperature Ambient operating 41 to 104ºF (5 to 40ºC)

Ambient nonoperating –40 to 158ºF (–40 to 70ºC)

Relative humidity (RH)

Altitude Operating –500 to 13,123 feet (152 to 4,000 meters)

Noise Sound pressure levels

Ambient (noncondensing) operating 5 to 90% (45 to 50% recommended)

Ambient (noncondensing) nonoperating and storage

Storage –1,000 to 30,000 feet (–305 to 9,144

Without air filter 67.2 dBA

With air filter 70.2 dBA

Sound power levels

Without air filter 78.9 dBA

With air filter 81.7 dBA

5 to 95%

meters)

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Physical Specifications for the Nexus 7010 System

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Physical Specifications for the Nexus 7010 System

Table 3-2 lists the physical specifications for the Nexus 7010 system.

Ta b l e 3-2 Dimensions for the Nexus 7010 Chassis

Description Width Depth Height

Chassis 17.3 inches (43.9 cm) 38.0 inches (96.5 cm) 36.5 inches (92.7 cm) (21.0 RU)

1. The height includes the bottom support rail.

Table 3-3 lists the weights and quantities of the components that make up each Nexus 7010 system.

These weights do not include the rack or cabinet that holds the Nexus 7010 system or the interface and power cables. For those weights, see the documentation provided by the manufacturers of those components.

Ta b l e 3-3 Weights, Quantities, and Mean Time Between Failure for the Nexus 7010 Chassis

Components

Component Weight per Unit Quantity MTBF1 (hours) per Unit

Chassis 200 lbs. (90.9 kg) 1 264,649

Supervisor module 10 lbs. (4.5 kg) 2 79,725

48-port I/O module 14 lbs. (6.4 kg) 1 to 8 (mix of either

32-port I/O module with SFP+ transceivers

Fabric module 4 lbs. (1.8 kg) 3 to 5 649,295

System fan tray 20 lbs. (9.1 kg) 2 264,649

Fabric fan tray 5 lbs. (2.3 kg) 2 264,649

Power supply 18 lbs. (8.2 kg) 2 to 3 204,415

Mid-frame doors and frame (optional)

1. The predicted mean time between failure (MTBF) is based on Bellcore Methodology.

18.5 lbs. (8.4 kg) 33,652

N/A 0 or 1 N/A

or both types of I/O modules)

74,373

Power Specifications for the Nexus 7010 System

The number of power supplies that your Nexus 7010 system requires depends on the numbers and types of modules that you include in the system chassis and the power redundancy mode that you are using.

The following topics explain how to calculate the system power requirements and the amount of power available for each type of power redundancy mode:

• Power Requirements, page 3-3

• Power Supply Configuration Modes, page 3-3

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Chapter 3 Technical Specifications

Power Specifications for the Nexus 7010 System

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Power Requirements

To determine the power requirements of the Nexus 7000 System, add the power requirements of each of its components.

The quantity of each type of module in your system depends on how you configure your system. You can configure your system according to the following minimum and maximum guidelines:

• (Minimum) 1 supervisor module, 1 I/O module, 3 fabric modules, 2 power supplies

• (Maximum) 2 supervisor modules, 8 I/O modules, 5 fabric modules, 3 power supplies

Table 3-4 lists the power requirements for each type of module that can be included with the the Nexus

7010 system.

Ta b l e 3-4 Power requirements for the Nexus 7010 system

Component Maximum Typical

Supervisor module 200 watts 190 watts

48-port I/O module 400 watts 358 watts

32-port I/O module 750 watts 611 watts

Fabric module 60 watts 55 watts

All fan trays (total) 2184 watts 300 watts

Power supply 300 watts 200 watts

Power Supply Configuration Modes

You can configure one of the following p ower modes to e ither utilize all of the a vailable powe r provided by the installed power suppli es or to provide power redunda ncy whe n there is a power loss:

• Combined mode—Thi s mode provi des the maxi mum amou nt of avail able powe r by utilizi ng the

combined power output from all installed power supplies for system operations. This mode does not provide a redun dancy.

• Power-supply redundancy mo de— This mode le ts yo u r ep lace a po w er su pply dur ing syste m

operations. All power supplies are activ e but the available power is calculated as the least amount of power available from all but one of the power supplies (N+1) and the reserve power is the amount of power output by the power supply that can output the most power. For example, if three power supplies output 3.0 the reserve power is 6.0

• Input source redundancy mode—This mode takes power from two electrical grids so that if one grid

goes down, the other grid can provide the po wer need ed by the syst em. Each gri d powers ha lf of each power suppl y (gr i d A is co nne cte d to t he I nput 1 r ece pt acle on eac h p ow er su pply an d g rid B is connected to t he Inpu t 2 re ce pta cle o n ea ch po wer su pply) . Th e av ai la ble pow er is ca lcul at ed as the amount of pow er outpu t by the p ortion s of p ower su pplie s conn ec te d to the same grid. For example, if three power supplies are connected to a 110V grid and a 220V grid, each power supply outputs 1.2

3.6

kW (1.2 kW + 1.2 kW + 1.2 kW ) and t he r es erve po wer w ould be 9 .0 kW (3 .0 kW + 3.0 kW +

3.0

kW).

kW for the 110V grid and 3.0 kW for the 220V grid. The av ailabl e power w ould be

kW, 6.0 kW, and 6.0 kW, the available power is 9.0 kW (3.0 kW + 6.0 kW) and

kW.

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Power Specifications for the Nexus 7010 System

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• Full redundancy mode—This mo de provid es both power-supply re dundanc y and input-so urce

redundancy. This mode lets you replace a power supply without interrupting system operations, and it lets you continue powering the system if one of two grids go es down. The availab le power is calculated as the le sser a mo unt of outp ut po wer for pow er supp ly r ed und ancy or inp ut so urce redundancy.

Table 3-5 shows the amount of power that each power mode makes available for your Nexus 7000 system

depending on the hardware installed in your system, the amount of power input to the power supplies, the voltage used for the input power, and the power mode you are using.

Ta b l e 3-5 Power Availability for Each Power Mode Configuration and Power Supply Installation

Power

Dual inputs per power supply unit

220 V and 220 V inputs

1 power supply 6,000 W - 3,000 W -

2 power supplies 12,000 W 6,000 W 6,000 W 6,000 W

3 power supplies 18,000 W 12,000 W 9,000 W 9,000 W

220 V and 110 V inputs

1 power supply 4,200 W - 1,200 W -

2 power supplies 8,400 W 4,200 W 2,400 W 2,400 W

3 power supplies 12,600 W 8,400 W 3,600 W 3,600 W

110 V and 110 V inputs

1 power supply 2,400 W - 1,200 W -

2 power supplies 4,800 W 2,400 W 2,400 W 2,400 W

3 power supplies 7,200 W 4,800 W 3,600 W 3,600 W

Single inputs per power supply unit

220 V input

1 power supply 3,000 W - - -

2 power supplies 6,000 W 3,000 W - -

3 power supplies 9,000 W 6,000 W - -

110 V input

1 power supply 1,200 W - - -

2 power supplies 2,400 W 1,200 W - -

3 power supplies 3,600 W 2,400 W - -

Combined mode

supply redundancy mode

Input source redundancy mode

Full redundancy mode

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Chapter 3 Technical Specifications

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System Clearances

You must provide adequate clearance for installing the system and replacing system modules. The aisle in front of the system must have at least 38.0 inches of clearance to handle the depth of the system (additional clearance might be necessary for the mechanical lift used to position the chassis in front of the rack). The aisle in back of the system must provide at least 30 inches of clearance for replacing the system fan trays.

Facility Cooling Requirements

The Nexus 7000 Series 10-slot chassis dissipates considerable power that generates much heat. The following is the heat dissipation requirement for the 10-slot chassis:

• 26,562 BTUs per hour

Chassis Airflow

System Clearances

The Nexus 7000 Series 10-slot chassis has a set of fan trays that are used to cool the rest of the chassis modules. Cool air flows in at the bottom front of the chassis and flows through the chassis and through the fans in the fan trays before being exhausted at the top rear of the chassis (see

Figure 3-1).

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Chassis Airflow

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Figure 3-1 Airflow Through the 10-Slot Chassis

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Site Preparation and Maintenance Records

This appendix provides a site planning list that you can use when preparing your site for the Nexus 7000 series devices and includes these sections:

• Site Preparation Checklist, page A-1

• Contact and Site Information, page A-3

• Chassis and Module Information, page A-3

Site Preparation Checklist

Planning the location and layout of your equipment rack or cabinet is essential for successful device operation, ventilation, and accessibility.

Table A-1 lists the site planning tasks that we recommend that you complete before you install the Nexus

7000 series. Your completion of each task ensures a successful device installation.

APPENDIX

Ta b l e A-1 Site Planning Checklist

Planning Activity Verification Time and Date

Space evaluation:

• Space and layout

• Floor covering

• Impact and vibration

• Lighting

• Physical access

• Maintenance access

Environmental evaluation:

• Ambient temperature

• Humidity

• Altitude

• Atmospheric contamination

• Airflow

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Appendix A Site Preparation and Maintenance Records

Site Preparation Checklist

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Table A-1 Site Planning Checklist (continued)

Planning Activity Verification Time and Date

Power evaluation:

• Input power type

• Power receptacles

• Receptacle proximity to the equipment

• Dedicated (separate) circuits for power

redundancy

• UPS for power failures

• Grounding: proper gauge wire and lugs

• Circuit breaker size

Grounding evaluation:

• Data center ground

Cable and interface equipment evaluation:

• Cable type

• Connector type

• Cable distance limitations

• Interface equipment (transceivers)

EMI evaluation:

• Distance limitations for signaling

• Site wiring

• RFI levels

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Appendix A Site Preparation and Maintenance Records

Contact and Site Information

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Contact and Site Information

Use the following worksheet (Table A-2) to record contact and site information.

Ta b l e A-2 Contact and Site Information

Contact person

Contact phone

Contact e-mail

Building/site name

Data center location

Floor location

Address (line 1)

Address (line 2)

City

State

ZIP code

Country

Chassis and Module Information

Use the following worksheets (Tabl e A-3 and Ta b le A-4) to record information about the chassis and modules.

Contract Number

Chassis serial number

Product number

Ta b l e A-3 Network-Related Information

Device IP address

Device IP netmask

Hostname

Domain name

IP broadcast address

Gateway/router address

DNS address

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Appendix A Site Preparation and Maintenance Records

Chassis and Module Information

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Ta b l e A-4 Module Information

Slot Module Type Module Serial Number Notes

5 Supervisor

6 Supervisor

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APPENDIX

Cabinet and Rack Requirements

This appendix describes the cabinet and rack requirements and includes these sections:

• General Requirements for Cabinets and Racks, page B-1

General Requirements for Cabinets and Racks

This section provides the Nexus 7000 Series requirements for the following types of racks and cabinets, assuming an external ambient air temperature range of 41 to 104°F (5 to 40°C):

• Standard perforated cabinets

• Solid-walled cabinets with a roof fan tray (bottom to top cooling)

• Standard open racks

• Four-post telco racks

Note If you select an enclosed cabinet, we recommend that you use one of the following thermally validated

types: standard perforated or solid-walled with a fan tray.

To correctly install the Nexus 7000 Series in a hot-aisle cold-aisle environment, you should fit a cabinet with baffles to prevent exhaust air from recirculating.

Note The verified cabinet vendors for the Nexus 7000 Series are Panduit and Chatsworth.

The rack or cabinet used to hold a Nexus 7000 Series should meet the following requirements:

• Use a standard 19-inch, four-post Electronic Industries Alliance (EIA) cabinet or rack, with

mounting rails that conform to English universal hole spacing per section 1 of the ANSI/EIA-310-D-1992 standard.

• Have at least 21 rack units (RU) of usable vertical rack space for one Nexus 7000 series device and

42 RU for two Nexus 7000 Series devices (45 RU is recommended).

Each of the following optional requirements are site specific:

• Accommodate up to two Nexus 7000 10-slot chassis and provide cable management for up to 384

ports for each Nexus 7000 series device.

• Provide the features required for the AC power distribution units (PDUs) for the power supplies

installed in each chassis.

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Cisco Nexus 7000 System Site Preparation Guide

B-1

Appendix B Cabinet and Rack Requirements

General Requirements for Cabinets and Racks

Send document comments to mdsfeedback-doc@cisco.com

• Have the capacity to accommodate cable routing within the cabinet without blocking access to any

of the pluggable modules installed in a chassis, and without blocking any airflow on the inlet and exhaust vents of the chassis. The cables should be able to be routed out the top or bottom of the cabinet.

• Where necessary, have a Seismic rating of Network Equipment Building Standards (NEBS) Zone 3

or Zone 4, per GR-63-CORE if required.

• Have a minimum gross load rating of 2000 lbs. (907.2 kg) (static load rating) if supporting two

devices.

B-2

Cisco Nexus 7000 System Site Preparation Guide

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INDEX

altitude 2-2

chassis airflow 3-5

combined mode 3-3

cooling requirements 3-5

corrosion 2-3

documentation

additional publications 1-vi

dust and particles 2-3

electromagnetic interference (EMI) 2-3

environmental specifications 3-1

input-source redundancy

described 3-3

physical specifications 3-2

power modes 3-3

combined 3-3

full redundancy 3-4

input-source redundancy 3-3

power-supply redundancy 3-3

power source 2-4

power specifications 3-2

power-supply redundancy

described 3-3

radio frequency interference (RFI) 2-3

Cisco Systems 7000 User Manual 2

Specifications and Main Features

Frequently Asked Questions

User Manual

Cisco Nexus 7000 Series Site Preparation Guide

CONTENTS

Preface

Overview

Preparing the Site

About the Nexus 7000 Series

Temperature

Humidity

Altitude

Dust and Particles

Corrosion

Electromagnetic and Radio Frequency Interference

Shock and Vibration

Grounding

Power Source

Technical Specifications

Environmental Specifications for the Nexus 7010 System

Physical Specifications for the Nexus 7010 System

Power Specifications for the Nexus 7010 System

Power Requirements

Power Supply Configuration Modes

System Clearances

Facility Cooling Requirements

Chassis Airflow

Site Preparation and Maintenance Records

Site Preparation Checklist

Contact and Site Information

Chassis and Module Information

Cabinet and Rack Requirements

General Requirements for Cabinets and Racks

INDEX