Cisco Nexus 93240YC-FX2 Service Manual

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Cisco Nexus 93240YC-FX2 NX-OS Mode Switch Hardware Installation

Guide

First Published: 2018-02-12

Last Modified: 2018-07-18

Americas Headquarters

Cisco Systems, Inc. 170 West Tasman Drive

San Jose, CA 95134-1706 USA http://www.cisco.com Tel: 408 526-4000

800 553-NETS (6387) Fax: 408 527-0883

P R E F A C E

C H A P T E R 1

C H A P T E R 2

C H A P T E R 3

C O N T E N T S

Preface vii

Audience vii

Documentation Conventions vii

Documentation Feedback viii

Obtaining Documentation and Submitting a Service Request viii

Overview	1
Overview 1
Preparing the Site 5
Temperature Requirements			5
Humidity Requirements		5
Altitude Requirements		5
Dust and Particulate Requirements				6
Minimizing Electromagnetic and Radio Frequency Interference 6
Shock and Vibration Requirements				7
Grounding Requirements			7
Planning for Power Requirements				7
Airflow Requirements		9
Rack and Cabinet Requirements 9
Clearance Requirements		10
Installing the Switch Chassis		11
Safety	11
Installation Options with Racks and Cabinets 12
Airflow Considerations		12

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Contents

C H A P T E R 4

C H A P T E R 5

A P P E N D I X A

A P P E N D I X B

Installation Guidelines		12
Unpacking and Inspecting the Switch					13
Installing the Switch	14
Grounding the Chassis		18
Starting the Switch	19
Connecting the Switch to the Network				23
Overview of Network Connections				23
Connecting a Console to the Switch				23
Creating the Initial Switch Configuration 25
Setting Up the Management Interface					26
Connecting Interface Ports to Other Devices 27
Uplink Connections	27
Downlink Connections		28
Replacing Components	29
Replacing a Fan Module		29
Removing a Fan Module			29
Installing a Fan Module			30
Replacing a Power Supply Module				30
Replacing an AC Power Supply				31
Replacing a High Voltage (HVAC/HVDC) Power Supply 32
Replacing a DC Power Supply 33
Rack Specifications 35
Overview of Racks	35

General Requirements for Cabinets and Racks	35
Requirements Specific to Standard Open Racks	36
Requirements Specific to Perforated Cabinets	36
Cable Management Guidelines 36

System Specifications 37

Environmental Specifications 37

Switch Dimensions 37

Cisco Nexus 93240YC-FX2 NX-OS Mode Switch Hardware Installation Guide

A P P E N D I X C

A P P E N D I X D

A P P E N D I X E

Contents

Switch and Module Weights and Quantities	38
Transceiver and Cable Specifications 38
Switch Power Input Requirements 38
Power Specifications 39
1100-W AC Power Supply Specifications	39

1100-W HVAC/HVDC Power Supply Specifications 40

Power Cable Specifications 40

AC Power Cables Supported by NX-OS Mode Switches 40

HVAC/HVDC Power Cables Supported by ACI-Mode and NX-OS Mode Switches 41

DC Power Cable Specifications 42

Regulatory Standards Compliance Specifications 42

LEDs 45

Switch Chassis LEDs 45

Fan Module LEDs	46
Power Supply LEDs	46

Additional Kits 47

Accessory Kit 47

Site Preparation and Maintenance Records 49

Site Preparation Checklist 49

Contact and Site Information 50

Chassis and Module Information 51

Cisco Nexus 93240YC-FX2 NX-OS Mode Switch Hardware Installation Guide

Contents

Cisco Nexus 93240YC-FX2 NX-OS Mode Switch Hardware Installation Guide

Preface

•Audience, on page vii

•Documentation Conventions, on page vii

•Documentation Feedback, on page viii

•Obtaining Documentation and Submitting a Service Request, on page viii

Audience

This publication is for network administrators who install, configure, and maintain Cisco Nexus switches.

Documentation Conventions

Command descriptions use the following conventions:

Convention	Description
bold	Bold text indicates the commands and keywords that you enter literally
	as shown.
Italic	Italic text indicates arguments for which the user supplies the values.
[x]	Square brackets enclose an optional element (keyword or argument).
[x \| y]	Squarebracketsenclosingkeywordsorargumentsseparatedbyavertical
	bar indicate an optional choice.
{x \| y}	Braces enclosing keywords or arguments separated by a vertical bar
	indicate a required choice.
[x {y \| z}]	Nested set of square brackets or braces indicate optional or required
	choices within optional or required elements. Braces and a vertical bar
	within square brackets indicate a required choice within an optional
	element.
variable	Indicates a variable for which you supply values, in context where italics
	cannot be used.

Cisco Nexus 93240YC-FX2 NX-OS Mode Switch Hardware Installation Guide

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Preface

Documentation Feedback

Convention	Description
string	A nonquoted set of characters. Do not use quotation marks around the
	string or the string will include the quotation marks.
Examples use the following conventions:
Convention	Description
screen font	Terminalsessionsandinformationtheswitchdisplaysareinscreenfont.
boldface screen font	Information you must enter is in boldface screen font.
italic screen font	Arguments for which you supply values are in italic screen font.
< >	Nonprinting characters, such as passwords, are in angle brackets.
[ ]	Default responses to system prompts are in square brackets.
!, #	An exclamation point (!) or a pound sign (#) at the beginning of a line
	of code indicates a comment line.

Documentation Feedback

Toprovidetechnicalfeedbackonthisdocument,ortoreportanerrororomission,pleasesendyourcomments to . We appreciate your feedback.

Obtaining Documentation and Submitting a Service Request

For information on obtaining documentation, using the Cisco Bug Search Tool (BST), submitting a service request, and gathering additional information, see What's New in Cisco Product Documentation at: http://www.cisco.com/c/en/us/td/docs/general/whatsnew/whatsnew.html

Subscribe to What’s New in Cisco Product Documentation, which lists all new and revised Cisco technical documentation as an RSS feed and delivers content directly to your desktop using a reader application. The RSS feeds are a free service.

Cisco Nexus 93240YC-FX2 NX-OS Mode Switch Hardware Installation Guide

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C H A P T E R 1

Overview

• Overview, on page 1

Overview

TheCiscoNexus93240YC-FX2(N9K-C93240YC-FX2)isa1.2-RU,fixed-portswitchdesignedfordeployment in data centers. This switch has 48 1/10/25-Gigabit Ethernet SFP28 ports and 12 40/100-Gigabit Ethernet QSFP28 ports. The ports on this switch can operate in multiple template configurations. This switch includes the following user-replaceable components:

•Fan modules (five) with the following airflow choices:

•Port-side exhaust airflow with blue coloring (NXA-FAN-35CFM-PE)

•Port-side intake airflow with burgundy coloring (NXA-FAN-35CFM-PI)

•Power supply modules (two—one for operations and one for redundancy [1+1]) with the following choices (do not mix AC and DC power sources and do not mix airflow directions):

•1100-WACpowersupplywithport-sideintakeairflow(burgundycoloring)(NXA-PAC-1100W-PI2)

•1100-W AC power supply with port-side exhaust airflow (blue coloring) (NXA-PAC-1100W-PE2)

•1100-W DC power supply with port-side exhaust airflow (blue coloring) (NXA-PDC-1100W-PE)

•1100-W HVAC/HVDC power supply with port-side intake airflow (burgundy coloring) (NXA-PHV-1100W-PI)

•1100-W HVAC/HVDC power supply with port-side exhaust airflow (blue coloring) (NXA-PHV-1100W-PE)

The following figure shows the hardware features seen from the port side of the chassis.

Cisco Nexus 93240YC-FX2 NX-OS Mode Switch Hardware Installation Guide

Overview

1	ChassisLEDs(Beacon[BCN],Status[STS],and	6	Management port (SFP+ port)
	Environment [ENV])
2	10-/25-Gigabit Ethernet SFP28 ports (48)	7	USB port
3	40-/100-Gigabit Ethernet QSFP28 ports (12)	8	Screw holes (6) for attaching rack mounting
			brackets
4	Console port (RS232 port)	9	Grounding pad

5Management port (RJ-45 port)

Todeterminewhichtransceivers,adapters,andcablesthisswitchsupports,seethe CiscoTransceiverModules Compatibility Information document.

The following figure shows the hardware features seen from the power supply side of the chassis.

Cisco Nexus 93240YC-FX2 NX-OS Mode Switch Hardware Installation Guide

Overview

1Screw holes (6) for attaching rack mounting brackets

2Grounding pad

3Fan modules (5) with fan slot 1 on the left and fan slot 5 on the right

4Twopowersupplies(oneusedforoperationsand one used for redundancy) (AC power supplies shown) with power supply slot 1 on the left and slot 2 on the right

Note USBsupportislimitedtoUSB2.0devicesthatuselessthan2.5W(lessthan0.5Ainclusiveofsurgecurrent). Devices, such as external hard drives, that instantaneously draw more than 0.5 A are not supported.

Depending on whether you plan to position the ports in a hot or cold aisle, you can order the fan and power supply modules with port-side intake or port-side exhaust airflow. To determine the airflow direction of the modules installed in your switch, see the following table.

Replaceable Modules	Port-Side Intake Airflow Coloring	Port-Side Exhaust Airflow Coloring
Fans	Burgundy	Blue
AC power supplies	Burgundy	Blue
HVAC/HVDC power supplies	White

Thefanandpowersupplymodulesarefieldreplaceable. Youcanreplaceonefanmoduleoronepowersupply module during operations, so long as the other modules are installed and operating. If you have only one power supply installed, you can install the replacement power supply in the open slot before removing the original power supply.

Cisco Nexus 93240YC-FX2 NX-OS Mode Switch Hardware Installation Guide

Overview

Note All of the fan and power supply modules must have the same direction of airflow. Otherwise, the switch can overheat and shut down. If you are installing a dual-direction power supply, that module automatically uses the same airflow direction as the other modules in the switch.

Caution If the switch has port-side intake airflow (burgundy coloring for fan modules), you must locate the ports in the cold aisle. If the switch has port-side exhaust airflow (blue coloring for fan modules), you must locate the ports in the hot aisle. If you locate the air intake in a hot aisle, the switch can overheat and shut down.

The switch supports the Fabric Extenders (FEXs) listed at https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus9000/hw/interoperability/fexmatrix/fextables.html.

Cisco Nexus 93240YC-FX2 NX-OS Mode Switch Hardware Installation Guide

C H A P T E R 2

Preparing the Site

•Temperature Requirements, on page 5

•Humidity Requirements, on page 5

•Altitude Requirements, on page 5

•Dust and Particulate Requirements, on page 6

•Minimizing Electromagnetic and Radio Frequency Interference, on page 6

•Shock and Vibration Requirements, on page 7

•Grounding Requirements, on page 7

•Planning for Power Requirements, on page 7

•Airflow Requirements, on page 9

•Rack and Cabinet Requirements, on page 9

•Clearance Requirements, on page 10

Temperature Requirements

The switch requires an operating temperature of 32 to 104 degrees Fahrenheit (0 to 40 degrees Celsius). If theswitchisnotoperating,thetemperaturemustbebetween –40to158degreesFahrenheit(–40to70degrees Celsius).

Humidity Requirements

High humidity can cause moisture to enter the switch. Moisture can cause corrosion of internal components and degradation of properties such as electrical resistance, thermal conductivity, physical strength, and size. The switch is rated to withstand from 5- to 95-percent (non-condensing) relative humidity.

Buildings in which the 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 the switch equipment. However, if the switch is located in an unusually humid location, you should use a dehumidifier to maintain the humidity within an acceptable range.

Altitude Requirements

The following table lists the maximum altitude that this switch is tested to operate. This switch is rated to operate at altitudes from 0 to 10,000 feet (0 to 3,048 meters). If you operate this switch at a higher altitude

Cisco Nexus 93240YC-FX2 NX-OS Mode Switch Hardware Installation Guide

Preparing the Site

Dust and Particulate Requirements

(lowpressure),theefficiencyofforcedandconvectioncoolingisreducedandcanresultinelectricalproblems 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.

Dust and Particulate Requirements

Exhaust fans cool power supplies and system fans cool switches by drawing in air and exhausting air out throughvariousopeningsinthechassis. However,fansalsoingestdustandotherparticles,causingcontaminant buildup in the switch and increased internal chassis temperature. A clean operating environment can greatly reducethenegativeeffectsofdustandotherparticles,whichactasinsulatorsandinterferewiththemechanical components in the switch.

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

•Do not permit smoking near the switch.

•Do not permit food or drink near the switch.

Minimizing Electromagnetic and Radio Frequency Interference

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

RFIisdefinedasanyEMIwithafrequencyabove10kHz. Thistypeofinterferencecantravelfromtheswitch to other devices through the power cable and power source or through the air as transmitted radio waves. The Federal Communications Commission (FCC) publishes specific regulations to limit the amount of EMI and RFI that can be emitted by computing equipment. Each switch meets these FCC regulations.

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

•Cover all open expansion slots with a blank filler plate.

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

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

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

•StrongEMI,especiallywhenitiscausedbylightningorradiotransmitters,candestroythesignaldrivers and receivers in the chassis and even create an electrical hazard by conducting power surges through lines into equipment.

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.

Cisco Nexus 93240YC-FX2 NX-OS Mode Switch Hardware Installation Guide

Preparing the Site

Shock and Vibration Requirements

Caution Ifthewiresexceedtherecommendeddistances,orifwirespassbetweenbuildings,givespecialconsideration 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 switches. You might want to consult experts in electrical surge suppression and shielding if you had similar problems in the past.

Shock and Vibration Requirements

The switch has been shockand vibration-tested for operating ranges, handling, and earthquake standards.

Grounding Requirements

The switch is sensitive to variations in voltage supplied by the power sources. Overvoltage, undervoltage, and transients (or spikes) can erase data from memory or cause components to fail. To protect against these typesofproblems,ensurethatthereisanearth-groundconnectionfortheswitch.Youcanconnectthegrounding pad on the switch either directly to the earth-ground connection or to a fully bonded and grounded rack.

Whenyouproperlyinstallthechassisinagroundedrack,theswitchisgroundedbecauseithasametal-to-metal connection to the rack. Alternatively, you can ground the chassis by using a customer-supplied grounding cable that meets your local and national installation requirements (we recommend 6-AWG wire for U.S. installations) connected to the chassis with a grounding lug (provided in the switch accessory kit) and to the facility ground.

Note You automatically ground AC power supplies when you connect them to AC power sources. For DC power supplies, you must connect a grounding wire when wiring the power supply to the DC power source.

Planning for Power Requirements

The switch includes two power supplies (1-to-1 redundancy with current sharing) in one of the following combinations:

•Two 1100-W AC power supplies

•Two 1100-W DC power supplies

•Two 1100-W HVAC/HVDC power supplies

Note Both power supplies must be the same type. Do not mix AC and DC power supplies in the same chassis.

Cisco Nexus 93240YC-FX2 NX-OS Mode Switch Hardware Installation Guide

Preparing the Site

Planning for Power Requirements

Note For n+1 redundancy, you can use one or two power sources for the two power supplies. For n+n redundancy, you must use two power sources and connect each power supply to a separate power source.

Thepowersuppliesareratedtooutputupto1100W,buttheswitchrequireslessthanthoseamountsofpower from the power supply. To operate the switch you must provision enough power from the power source to cover the requirements of both the switch and a power supply. Typically, this switch and a power supply require about 367 W of power input from the power source, but you must provision as much as 777 W power input from the power source to cover peak demand.

Note Some of the power supply modules have Underwriter Labs (UL) rating capabilities that exceed the switch requirements. When calculating power requirements, use the switch requirements to determine the amount of power required for the power supplies.

To minimize the possibility of circuit failure, make sure that each power-source circuit used by the switch is dedicated to the switch.

Note For AC input application, please refer to the statement below:

Warning Statement 1005—Circuit Breaker

Note

Warning

This product relies on the building's installation for short-circuit (overcurrent) protection. Ensure that the protective devices are rated not greater than 20A (North America), 16A (Europe), and 13A (UK).

For DC input application, please refer to the statement below:

Statement 1005—Circuit Breaker

This product relies on the building's installation for short-circuit (overcurrent) protection.

•Ensurethattheprotectivedevicesareratednotgreaterthan40Awhentheswitchispoweredwithregular DC power supplies (rated 48-60VDC).

•Ensurethattheprotectivedevicesareratednotgreaterthan10AwhentheswitchispoweredwithHVDC power supplies (rated 240-350VDC).

Note For the power cables to use with the power supplies, see Power Cable Specifications, on page 40.

Cisco Nexus 93240YC-FX2 NX-OS Mode Switch Hardware Installation Guide

Preparing the Site

Airflow Requirements

The switch is designed to be positioned with its ports in either the front or the rear of the rack depending on your cabling and maintenance requirements. Depending on which side of the switch faces the cold aisle, you must have fan and power supply modules that move the coolant air from the cold aisle to the hot aisle in one of the following ways:

•Port-side exhaust airflow—Coolant air enters the chassis through the fan and power supply modules in the cold aisle and exhausts through the port end of the chassis in the hot aisle.

•Port-sideintakeairflow—Coolantairentersthechassisthroughtheportendinthecoldaisleandexhausts through the fan and power supply modules in the hot aisle.

You can identify the airflow direction of each fan and power supply module by its coloring as follows:

•Blue coloring indicates port-side exhaust airflow.

•Burgundy coloring indicates port-side intake airflow.

Note To prevent the switch from overheating and shutting down, you must position the air intake for the switch in a cold aisle, and all of the fan and power supply modules must have the same direction of airflow (even if their coloring is different). If you must change the airflow direction for the switch, you must shutdown the switch before changing the modules.

Rack and Cabinet Requirements

You can install the following types of racks or cabinets for your switch:

•Standard perforated cabinets

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

•Standard open four-post Telco racks

Work with your cabinet vendors to determine which of their cabinets meet the following requirements or see the Cisco Technical Assistance Center (TAC) for recommendations:

•Use a standard 19-inch (48.3-cm), four-post Electronic Industries Alliance (EIA) cabinet or rack with mountingrailsthatconformtoEnglishuniversalholespacingpersection1oftheANSI/EIA-310-D-1992 standard.

•The depth of a four-post rack must be 24 to 32 inches (61.0 to 81.3 cm) between the front and rear mounting rails (for proper mounting of the bottom-support brackets or other mounting hardware).

Additionally, you must have power receptacles located within reach of the power cords used with the switch.

Cisco Nexus 93240YC-FX2 NX-OS Mode Switch Hardware Installation Guide

Preparing the Site

Clearance Requirements

Warning Statement 1048—Rack Stabilization

Stability hazard. The rack stabilizing mechanism must be in place, or the rack must be bolted to the floor before you slide the unit out for servicing. Failure to stabilize the rack can cause the rack to tip over.

Clearance Requirements

You must provide the chassis with adequate clearance between the chassis and any other rack, device, or structure so that you can properly install the chassis, route cables, provide airflow, and maintain the switch. For the clearances required for an installation of this chassis in a four-post rack, see the following figure.

1	Chassis	5	Depth of the chassis
2	Vertical rack-mount posts and rails	6	Maximum extension of the bottom-support rails
3	Chassis width	7	Depth of the front clearance area (this equals the
			depth of the chassis)

4Widthofthefrontclearancearea(thisequalsthe width of the chassis with two rack-mount brackets attached to it)

Note Both the front and rear of the chassis must be open to both aisles for airflow.

Cisco Nexus 93240YC-FX2 NX-OS Mode Switch Hardware Installation Guide

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