Lenovo ThinkSystem NE2552E User manual

LenovoThinkSystemNE2552EFlexSwitch
InstallationGuide

ImportantProductInformation—
Beforeusingthisinformationandtheproductitsupports,readAppendixB,“Notices”onpage 57ofthis
manual.AlsoreadtheproductWarrantyInformationdocument,theImportantNoticesdocument,theSafety
Informationdocument,theLicenseAgreementforMachineCode(LAMC)document,andtheEnvironmental
NoticesandUserGuidedocumentlocatedatLenovoThinkSystem,Systemx,ThinkServer,andStorage
productdocumentation.
FirstEdition(May2018)
©CopyrightLenovo2018
Portions©CopyrightIBMCorporation2014.
LIMITEDANDRESTRICTEDRIGHTSNOTICE:IfdataorsoftwareisdeliveredpursuantaGeneral
ServicesAdministration“GSA”contract,use,reproduction,ordisclosureissubjecttorestrictionssetforth
inContractNo.GS‐35F‐05925.
LenovoandtheLenovologoaretrademarksofLenovointheUnitedStates,othercountries,orboth.

© Copyright Lenovo 2018 : Contents 3
Contents
Safety Information . . . . . . . . . . . . . . . . . . . . . . . .5
SafetyStatements ............................7
ULRegulatoryInformation......................8
Chapter 1. The ThinkSystem NE2552E Flex Switch . . . . . . . . . . .9
Documentation.............................11
AboutthisInstallationGuide .....................11
NoticesandStatementsinthisDocument ...............11
RelatedDocumentation .......................12
Chapter 2. Installing and Removing the NE2552E. . . . . . . . . . . 13
BeforeInstallingtheNE2552E......................15
InstallationGuidelines ........................16
SystemReliabilityGuidelines .....................17
HandlingStatic‐SensitiveDevices...................17
InstallingtheNE2552E .........................18
RemovingorReplacingtheSwitch ....................20
ConnectingSwitchPorts.........................21
TheSerialConsolePort.......................21
TheRJ‐45ManagementPort.....................22
HandlingTransceiverModules ....................23
SFP28Ports.............................24
InstallinganSFP28OpticalTransceiver................26
QSFP28Ports ............................27
InstallingaQSFP28OpticalTransceiver ................29
LocatingtheInformationPanels,LEDs,andExternalPorts ..........32
InformationPanel ..........................32
InformationLEDs ..........................34
Chapter 3. Configuring the NE2552E . . . . . . . . . . . . . . . . 37
EstablishinganInterfaceThroughtheCMM................39
EnablingManagementThroughDataPorts ................40
AccessingtheSwitchThroughtheSSHv2/TelnetInterface..........41
AccessingtheSwitchThroughtheSerial‐PortInterface ...........42
InitialConfiguration ..........................43
Chapter 4. Updating the Firmware . . . . . . . . . . . . . . . . . 45
DeterminingtheLevelofSwitchFirmware.................46
ObtainingtheLatestLevelofSwitchFirmware...............47
UpgradingtheSwitchFirmware .....................48
SwitchFirmwareUpgradeExample..................49
ResettingandRestartingtheSwitch....................50
Chapter 5. Solving Problems . . . . . . . . . . . . . . . . . . . 51
RunningPOST.............................52
POSTErrors ..............................53
Partslisting..............................54

4 Lenovo ThinkSystem NE2552E Flex Switch: Installation Guide
Appendix A. Getting Help and Technical Assistance . . . . . . . . . 55
Appendix B. Notices . . . . . . . . . . . . . . . . . . . . . . 57
Trademarks..............................59
ImportantNotes............................60
Recyclinginformation..........................61
ParticulateContamination ........................62
TelecommunicationRegulatoryStatement.................63
ElectronicEmissionNotices.......................64
FederalCommunicationsCommission(FCC)Statement.........64
IndustryCanadaClassAEmissionComplianceStatement ........64
AvisdeConformitéàlaRéglementationdʹIndustrieCanada.......64
AustraliaandNewZealandClassAStatement .............64
EuropeanUnion‐CompliancetotheElectromagneticCompatibilityDirective
65
GermanyClassAStatement.....................65
VCCIClassAStatement.......................66
JapanElectronicsandInformationTechnologyIndustriesAssociation
(JEITA) Statement..........................67
KoreaCommunicationsCommission(KCC)Statement..........67
RussiaElectromagneticInterference(EMI)ClassAStatement.......67
People’sRepublicofChinaClassAElectronicEmissionStatement....67
TaiwanBSMIRoHSDeclaration...................68
TaiwanClassAComplianceStatement................68

© Copyright Lenovo 2018 : Safety Information 5
Safety Information
Beforeinstallingthisproduct,readtheSafetyInformation.
Antesdeinstalaresteproduto,leiaasInformaçõesdeSegurança.
PrijeinstalacijeovogproduktaobaveznopročitajteSurgonosneUpute.
Předinstalacítohotoproduktusipřečtětepříručkubezpečnostníchinstrukcí.
Læssikkerhedsforskrifterne,førduinstallererdetteprodukt.
Leesvoordatuditproductinstalleerteerstdeveiligheidsvoorschriften.
Ennenkuinasennattämäntuotteen,lueturvaohjeetkohdastaSafetyInformation.
Avantdʹinstallerceproduit,lisezlesconsignesdesécurité.
VorderInstallationdiesesProduktsdieSicherheitshinweiselesen.’
Πρινεγκαταστήσετετοπροϊόναυτό,διαβάστετιςΠληροφορίεςασφαλείας
(safetyinformation).
AterméktelepítéselőttolvassaelaBiztonságielőírásokat!
Primadiinstallarequestoprodotto,leggereleInformazionisullaSicurezza.
Πреддаинсталираовојпродукт,прочитајтеинформацијатазабезбедност.
Lessikkerhetsinformasjonen(SafetyInformation)førduinstallererdette
produktet.
Przedzainstalowaniemtegoproduktu,należyzapoznaćsięzksiążką“Informacje
dotyczacebezpieczeństwa”(SafetyInformation).
Antesdeinstalaresteproduto,leiaasInformaçõessobreSegurança.
Передустановкойпродуктапрочтитeинcтрyкциипотexникeбезопасности.
PredinštalácioutohtozariadeniasiprečítajteBezpečnostnépredpisy.

6 Lenovo ThinkSystem NE2552E Flex Switch: Installation Guide
PrednamestitvijotegaproizvodapreberiteVarnostneinformacije.
Antesdeinstalaresteproducto,lealainformacióndeseguridad.
Lässäkerhetsinformationeninnanduinstallerardenhärprodukten.
Buürünükurmadanöncegüvenlikbilgileriniokuyun.
Youqmwngzyunghcanjbinjneixgaxgonq,itdinghaeudoegaencanjbinjsoengq
cungjvahgangjanciensuisik.

© Copyright Lenovo 2018 : Safety Information 7
Safety Statements
Important—
Eachcautionanddangerstatementinthisdocumentislabeledwithanumber.This
numberisusedtocrossreferencetheEnglish‐languagecautionordanger
statementwiththetranslatedversionsofthecautionordangerstatementinthe
SafetyInformationdocument.
Forexample,ifacautionstatementislabeled“Statement1,”translationsforthat
cautionstatementareintheSafetyInformationdocumentunder“Statement1.”
Besuretoreadallcautionanddangerstatementsinthisdocumentbeforeyou
performtheprocedures.Readanyadditionalsafetyinformationthatcomeswith
thesystemoroptionaldevicebeforeyouinstallthedevice.
Followingisacompilationofthestatementsfoundthroughoutthismanual.
Statement 1
DANGER
Electricalcurrentfrompower,telephone,andcommunicationcablesis
hazardous.
Toavoidashockhazard:
Donotconnectordisconnectanycablesorperforminstallation,
maintenance,orreconfigurationofthisproductduringanelectricalstorm.
Connectallpowercordstoaproperlywiredandgroundedelectricaloutlet.
Connecttoproperlywiredoutletsanyequipmentthatwillbeattachedto
thisproduct.
Whenpossible,useonehandonlytoconnectordisconnectsignalcables.
Neverturnonanyequipmentwhenthereisevidenceoffire,water,or
structuraldamage.
Disconnecttheattachedpowercords,telecommunicationssystems,
networks,andmodemsbeforeyouopenthedevicecovers,unless
instructedotherwiseintheinstallationandconfigurationprocedures.
Connectanddisconnectcablesasdescribedinthefollowingtablewhen
installing,moving,oropeningcoversonthisproductorattacheddevices.
ToConnect:
1.TurneverythingOFF.
2.First,attachallcablestodevices.
3.Attachsignalcablestoconnectors.
4.Attachpowercordstooutlet.
5.TurndeviceON.
ToDisconnect:
1.TurneverythingOFF.
2.First,removepowercordsfromoutlet.
3.Removesignalcablesfromconnectors.
4.Removeallcablesfromdevices.

8 Lenovo ThinkSystem NE2552E Flex Switch: Installation Guide
Statement 3
CAUTION:
When laser products (such as CD-ROMs, DVD drives, fiber optic devices, or
transmitters) are installed, note the following:
Donotremovethecovers.Removingthecoversofthelaserproductcould
resultinexposuretohazardouslaserradiation.Therearenoserviceableparts
insidethedevice.
Useofcontrolsoradjustmentsorperformanceofproceduresotherthanthose
specifiedhereinmightresultinhazardousradiationexposure.
DANGER
Class 1 Laser Product
Laser Klasse 1
Laser Klass 1
Luokan 1 Laserlaite
Appareil À Laser de Classe 1
Statement 25
CAUTION:
This product contains a Class 1M laser. Do not view directly with optical
instruments.
UL Regulatory Information
ThisdeviceisforuseonlywithlistedLenovoFlexSystemEnterpriseChassis.
SomelaserproductscontainanembeddedClass3AorClass3Blaserdiode.
Notethefollowing.
Laserradiationwhenopen.Donotstareintothebeam,donotviewdirectly
withopticalinstruments,andavoiddirectexposuretothebeam.

© Copyright Lenovo 2018 9
Chapter 1. The ThinkSystem NE2552E Flex Switch
ThisInstallationGuideprovidesinformationabouttheLenovo®FlexSystem™
ThinkSystemNE2552EFlexSwitch(referredtoasNE2552Eor“switch”
throughoutthisdocument).
Figure 1. TheNE2552E
Note: Theillustrationsinthisdocumentmightdifferslightlyfromyourhardware.
SFP28 module ports
QSFP28 module ports
RS-232 mini serial port
(console access)
RJ-45 external
management port
Switch status LEDs

10 Lenovo ThinkSystem NE2552E Flex Switch: Installation Guide
TheLenovoThinkSystemNE2552EFlexSwitchsupportsa10G/25G/50Gflex
serverconnectionandiscapableof10G,25G,50G,and100Guplinkconnections.
TheNE2552Esupportseight25GSFP28ports,four100GQSFP28ports,andone
10/100/1000Base‐Texternalmanagementportonthefaceplateaswellas28
25GBase‐KRinternallinkstothe14ITElements(commonlyknownasbladeserver
orflexserver).Theinternallinksareconfigurableandsupportlineratesof
10GBase‐KRand25GBase‐KRwithsupportfor2x25Gor1x50GtoanITENetwork
Adapterusingphysical/KRlanemultiplexor.TheexternalfacingSFP28ports
support8x10G/25Glinerates.The100GQSFPportsareconfigurableas100G,
2x50G,or4x10G/25Gports.
TheNE2552Eprovidessupportforthefollowing:
Acombinationofeither28x10G/25Gor14x50Gportsinternally.
8x10G/25GSFP28portsplus4x100GQSFP+ports,and10/100/1000Base‐T
managementportexternally.The100Gportsarecapableof4x10G/25G,or2x50G
breakoutconfigurations.
Inadditiontoportflexibility,youcanmanageandconfiguretheNE2552Ethrough
thefollowinginterfaces:
ASecureShell(SSH)version2orTelnetconnectiontotheembedded
Command‐LineInterface(CLI)
Aterminalemulationprogramconnectiontotheserialportinterface
AnetworkmanagementapplicationusingSimpleNetworkManagement
Protocol(SNMP)

© Copyright Lenovo 2018 Chapter 1: The ThinkSystem NE2552E Flex Switch 11
Documentation
About this Installation Guide
ThisInstallationGuideprovidesinformationandinstructionsforinstallingthe
NE2552E,updatingthefirmware,andsolvingproblems.Forotherinformation
aboutconfigurationandmanagementoftheswitch,refertothedocuments
describedin“RelatedDocumentation”onpage 12.
Note:
Theillustrationsinthisdocumentmightdifferslightlyfromyourhardwareand
mightnotdepictallincludedlabels.
Theconsoleoutputdescribedorreferencedinthisdocumentmightdiffer
slightlyfromthatdisplayedbyyoursystem.Outputvariesaccordingtothetype
ofLenovochassisandthefirmwareversionsandoptionsthatareinstalled.
Notices and Statements in this Document
Thecautionanddangerstatementsinthisdocumentarealsointhemultilingual
SafetyInformationdocument,whichislocatedatLenovoSystemx,ThinkServerand
Storageproductdocumentation.Eachstatementisnumberedforreferencetothe
correspondingstatementintheSafetyInformationdocument.
Thefollowingnoticesandstatementsareusedinthisdocument:
Note:Thesenoticesprovideimportanttips,guidance,oradvice.
Important:Thesenoticesprovideinformationoradvicethatmighthelpyou
avoidinconvenientorproblemsituations.
Attention:Thesenoticesindicatepotentialdamagetoprograms,devices,or
data.Anattentionnoticeisplacedjustbeforetheinstructionorsituationin
whichdamagecouldoccur.
Caution:Thesestatementsindicatesituationsthatcanbepotentiallyhazardous
toyou.Acautionstatementisplacedjustbeforethedescriptionofapotentially
hazardousproceduresteporsituation.
Danger:Thesestatementsindicatesituationsthatcanbepotentiallylethalor
extremelyhazardoustoyou.Adangerstatementisplacedjustbeforethe
descriptionofapotentiallylethalorextremelyhazardousprocedurestepor
situation.

12 Lenovo ThinkSystem NE2552E Flex Switch: Installation Guide
Related Documentation
AdditionalorupdatedproductdocumentsmaybeavailablefromtheLenovo
website.Suchdocumentsmaycoverfeaturesnotdescribedintheoriginal
documentationthatcomeswiththeswitch,ormayincludetechnicalupdatesor
corrections.
Youcanobtainup‐to‐dateinformationontheLenovosupportwebsite:
http://support.lenovo.com/
Note: ChangesaremadeperiodicallytotheLenovowebsite.Proceduresfor
locatingfirmwareanddocumentationmightvaryslightlyfromwhatisdescribed
inthisdocument.
Forinformationaboutswitchhardwareandfirmwarefeatures,specifications,and
standards,includingtheirconfiguration,seetheApplicationGuideforyourspecific
switchanditsinstalledfirmware.
Forinformationabouttheswitchinformation,statistics,andindividual
configurationparameters,seetheCommandReferenceforyourspecificswitchand
itsinstalledfirmware.
Foralistofcompatibleswitchcomponentsandoptions(suchasrack‐mounting
kits,modules,cords,andcables),seetheLenovoNetworkingCatalog.
SeethedocumentationthatcamewithyourLenovochassisforinformationabout
theenvironmentalconditionsandspecificationsthataresupportedbythesystem.

© Copyright Lenovo 2018 13
Chapter 2. Installing and Removing the NE2552E
ThischapterprovidesinstructionsforinstallingandremovingtheNE2552Einthe
LenovoFlexSystemchassis.SeethedocumentationforyourLenovoFlexSystem
chassisforinformationaboutI/Obaylocationsandthecomponentsthatcanbe
installedinthemthatisspecifictoyourLenovoFlexSystemchassistype.
ThefollowingillustrationshowsanexampleofaLenovoFlexSystemchassis
(rear‐view)withtheI/Obaysidentified.
Figure 2. FlexSystemchassisI/Obays.
ALenovoFlexSystemnetworkadaptermustbeinstalledineachcomputenode
withwhichyouwanttocommunicate.Toenabletheswitchtocommunicatewitha
computenode,atleastoneswitchmustbeinstalledintheLenovoFlexSystem
chassis.Fordetailsaboutnetworkadapterinstallation,configuration,anduse,see
thedocumentationthatcomeswiththeLenovoFlexSystemnetworkadapter.
Installingasecondswitchenablesaredundantpathandaseparateconnection
fromthecomputenodetotheexternalEthernetnetwork.
TheLenovoFlexSystemchassissupportsamaximumoffourNE2552Emodules.
TheLenovoFlexSystemchassissupportsamaximumoftwenty‐eightnetwork
adapters.
I/O Module
Bay 1
I/O Module
Bay 3
I/O Module
Bay 2
I/O Module
Bay 4

14 Lenovo ThinkSystem NE2552E Flex Switch: Installation Guide
Note:
I/Obays1and2supportanystandard Lenovo FlexSystemswitchorpass‐thru
module.WhenyouinstallanI/OnetworkadapterintheI/OExpansion1
Connectoronthecomputenode,theseI/Obayssupportanyswitchwiththe
sametypeofnetworkinterfacethatisusedbythecorrespondingnetwork
adapter.
I/Obays3and4supportanystandard Lenovo FlexSystemswitchorpass‐thru
module.WhenyouinstallanI/OnetworkadapterintheI/OExpansion2
Connectoronthecomputenode,theseI/Obayssupportanyswitchwiththe
sametypeofnetworkinterfacethatisusedbythecorrespondingnetwork
adapter.
Thecomputenodesor Lenovo FlexSystemchassisthataredescribedorshown
inthisdocumentmightbedifferentfromyourcomputenodeor
Lenovo Flex
Systemchassis.Foradditionalinformation,seethedocumentationthatcomes
withyour
Lenovo FlexSystemchassis.
WhentheswitchisinstalledinaLenovoFlexSystemchassis,bydefaultthe
internalportsoperateat10/25Gigabitspersecond(Gbps)andtheexternalports
operateat10/25Gbpsand50/100Gbps,dependingontheporttypeand
installedtransceivermodules.

© Copyright Lenovo 2018 Chapter 2: Installing and Removing the NE2552E 15
Before Installing the NE2552E
Attention: ProductinformationisrequiredinordertoregisteryourNE2552E,
updateitsfirmware,placeaservicecall,orreplacetheunit.
Someoftheproductinformationlabelsmaybehiddenfromviewoncethe
NE2552Eisinstalled.Topreventtheneedtoremovetheswitchinordertoread
requiredproductinformation,locateandrecordtheinformationshownonTable 1
onpage 16priortoinstallation.
Anexampleoftheproductinformationlabelsisshownasfollows:
Figure 3. Sampleproductlabelsfromtheswitch
Note: Theseexamplesaretohelplocateandidentifytheinformationlabels.The
actuallabelsandinformationforyourspecificswitchmaydiffer.
TheidentificationlabelsontheNE2552Econtaintheserialnumberandpart
numberoftheswitch.TheselabelsalsoincludetheMediaAccessControl(MAC)
address(ontheuppermosthandle)oftheswitch.Thoughhelpful,theMAC
addressisnotrequiredforopeningaservicecall.

16 Lenovo ThinkSystem NE2552E Flex Switch: Installation Guide
Printthispageandrecordproductinformationbelow.Keeptheinformationina
safeplaceforfuturereference.Youwillneedthisinformationwhenyouregister
theswitchoropenaservicecallwithLenovo.
Forconvenience,oncetheNE2552Eisinstalledandinitialized,youcanusethe
show sys-infocommandintheswitchfirmwareinterfacetodisplaytheproduct
serialnumberandotherrequiredinformation.
Installation Guidelines
BeforeyouinstalltheswitchintheLenovoFlexSystemchassis,readthefollowing
information:
Readthesafetyinformationthatbeginsonpage 5,“HandlingStatic‐Sensitive
Devices”onpage 17,andthesafetystatementsinthe
Lenovo FlexSystem
chassisdocumentation.Thisinformationprovidesasafeworkingenvironment.
Observegoodhousekeepingintheareawhereyouareworking.Placeremoved
coversandotherpartsinasafeplace.
Blueonacomponentindicatestouchpoints,whereyoucangripthecomponent
toremoveitfromorinstallitinthecomputenodeor
Lenovo FlexSystem
chassis,openorclosealatch,andsoon.
Orangeonacomponentoranorangelabelonornearacomponentonthe
switch,computenode,or
Lenovo FlexSystemchassisindicatesthatthe
componentcanbehot‐swapped,whichmeansthatifthe
Lenovo FlexSystem
chassisandoperatingsystemsupporthot‐swapcapability,youcanremoveor
installthecomponentwhilethe
Lenovo FlexSystemchassisisrunning.(Orange
canalsoindicatetouchpointsonhot‐swapcomponents.)Seetheinstructionsfor
removingorinstallingaspecifichot‐swapcomponentforanyadditional
proceduresthatyoumighthavetoperformbeforeyouremoveorinstallthe
component.
Youdonothavetoturnoffthe Lenovo FlexSystemchassistoinstallorreplace
anyofthehot‐swapmodulesonthefrontorrearofthe
Lenovo FlexSystem
chassis.
Whenyouinstalltheswitchinthe Lenovo FlexSystemchassis,youmustalso
installacompatibleI/Onetworkadapterinthecomputenodetosupportthe
switch.
Whenyouarefinishedworkingonthecomputenodeor Lenovo FlexSystem
chassis,reinstallallsafetyshields,guards,labels,andgroundwires.
Table 1. Importantproductinformation
Product Name Lenovo ThinkSystem NE2552E Flex Switch
SerialNumber
PartNumber
MediaAccessControl
(MAC)addressforswitch
MACaddressesforother
components

© Copyright Lenovo 2018 Chapter 2: Installing and Removing the NE2552E 17
System Reliability Guidelines
Tohelpensurepropercooling,performance,andsystemreliability,makesurethat
thefollowingrequirementsaremet:
Eachofthebaysontherearofthe Lenovo FlexSystemchassiscontainseithera
moduleorafillermodule.
Aremovedhot‐swapmoduleisreplacedwithanidenticalmoduleorfiller
modulewithinoneminuteofremoval.
Aremovedhot‐swapcomputenodeisreplacedwithanothercomputenodeor
fillernodewithinoneminuteofremoval.
Theventilationareasonthesidesofthecomputenodearenotblocked.
Youhavefollowedthereliabilityguidelinesinthedocumentationthatcomes
withthe
Lenovo FlexSystemchassis.
Handling Static-Sensitive Devices
Attention: Staticelectricitycandamagetheswitchandotherelectronicdevices.To
avoiddamage,keepstatic‐sensitivedevicesintheirstatic‐protectivepackagesuntil
youarereadytoinstallthem.
Toreducethepossibilityofelectrostaticdischarge,observethefollowing
precautions:
Limityourmovement.Movementcancausestaticelectricitytobuilduparound
you.
Theuseofagroundingsystemisrecommended.Forexample,wearan
electrostatic‐dischargewriststrap,ifoneisavailable.
Handlethedevicecarefully,holdingitbyitsedgesoritsframe.
Donottouchsolderjoints,pins,orexposedprintedcircuitry.
Donotleavethedevicewhereotherscanhandleanddamageit.
Whilethedeviceisstillinitsstatic‐protectivepackage,touchittoanunpainted
metalpartofanyunpaintedmetalsurfaceonagroundedrackcomponentinthe
rackinwhichyouareinstallingthedevice,foratleasttwoseconds.Thisdrains
staticelectricityfromthepackageandfromyourbody.
Removethedevicefromitspackageandinstallitdirectlyintotheswitch
withoutsettingitdown.Ifitisnecessarytosetdownthedevice,putitbackinto
itsstatic‐protectivepackage.Donotplacethedeviceonaswitchcoverorona
metalsurface.
Takeadditionalcarewhenyouhandledevicesduringcoldweather.Heating
reducesindoorhumidityandincreasesstaticelectricity.
Sometypesof Lenovo FlexSystemchassiscomewithelectrostaticdischarge
(ESD)connectors.IfyourunitisequippedwithanESDconnector,seethe
documentationthatcomeswiththe
Lenovo FlexSystemchassisforusingthe
ESDconnector.

18 Lenovo ThinkSystem NE2552E Flex Switch: Installation Guide
Installing the NE2552E
Note: Thefollowingillustrationshowshowtoinstalltheswitchina Lenovo Flex
Systemchassis.Theappearanceofyour
Lenovo FlexSystemchassismightbe
different;seethedocumentationforyour
Lenovo FlexSystemchassisfor
additionalinformation.
UsethefollowinginstructionstoinstalltheswitchintheLenovoFlexSystem
chassis.YoucaninstalltheswitchwhiletheLenovoFlexSystemchassisispowered
on.Forredundancysupport,youmustinstallI/OmodulesofthesametypeinI/O
bays 1and 2,andI/Omodulesofthesametypeinbays 3and 4ofthechassis.
Toinstalltheswitch,completethefollowingsteps.
1. Readthesafetyinformationthatbeginsonpage 5and“InstallationGuidelines”on
page 16.
2. SelectI/Obayinwhichtoinstalltheswitch.
Note: FordetailsaboutI/Obayrequirementsandbaylocations,seethe
documentationforthe
Lenovo FlexSystemchassis.
3. Removethefillermodulefromtheselectedbay.Storethefillermoduleforfuture
use.
4. Ifyouhavenotalreadydoneso,touchthestatic‐protectivepackagethatcontains
theswitchtoanunpaintedmetalsurfaceofthe
Lenovo FlexSystemchassisoran
unpaintedmetalsurfaceonanyothergroundedrack‐componentforatleast2
seconds.
5. Removetheswitchfromitsstatic‐protectivepackage.
6. Makesurethatthereleaseleversontheswitchareintheopenposition
(perpendiculartotheswitch).
7. SlidetheswitchintotheapplicableI/Obayuntilitstops.
8. Pushthereleaseleversonthefrontoftheswitchtotheclosedposition.Afteryou
insertandlocktheswitch,itisturnedon(theremaybeaslightdelay),anda
Power‐OnSelf‐Test(POST)occurstoverifythattheswitchisoperatingcorrectly.

© Copyright Lenovo 2018 Chapter 2: Installing and Removing the NE2552E 19
Note: TheswitchmaytakeuptotwominutestocompletethePOST.DuringPOST,
thePowerLEDcontinuouslyflashes.OncePOSThassuccessfullycompleted,the
PowerLEDremainsonandtheErrorLEDisoff.
9. MakesurethatLEDsontheswitchindicatethatitisoperatingcorrectly(see
“InformationLEDs”onpage 34).
10. Ifyouhaveanotherswitchtoinstall,repeatStep 3throughStep 9;otherwise,goto
thenextstep.
11. InstallanyporttransceivermodulesorDirect‐AttachCables(DACs)neededforthe
switch.Forinformationandinstructions,see“ConnectingSwitchPorts”on
page 21andthedocumentationthatcomeswiththetransceivermodulesorDACs.

20 Lenovo ThinkSystem NE2552E Flex Switch: Installation Guide
Removing or Replacing the Switch
Note: Thefollowingillustrationshowshowtoremoveandreplacetheswitchfrom
the
Lenovo FlexSystemchassis.Theappearanceofyour Lenovo FlexSystem
chassismightbedifferent;seethedocumentationforyour
Lenovo FlexSystem
chassisforadditionalinformation.
Toreplacetheswitch,completethefollowingsteps.
1. Readthesafetyinformationthatbeginsonpage 5,and“InstallationGuidelines”on
page 16.
2. Detachanycablesthatareattachedtotheswitchyouwillberemoving.
Note: Detachingcablesfromtheswitchportsdisruptsthenetworkconnection
fromtheswitchtoanyconnectedexternaldevices.Ifyouplantoreplacetheswitch
withanotherswitch,youcanreusetheexistingcables,providedtheyremains
securelyattachedtothenetwork.
3. Pullthereleaselatchesoutfromtheswitch.Theswitchmovesoutofthebay
approximately0.6cm(0.25inch).
4. Slidetheswitchoutofthebayandsetitasideinasafe,static‐freelocation.
5. Placeeitheranotherswitchorafillermoduleinthebay.
Note: Completethisstepwithin1minute.Formoreinformation,see“Installing
theNE2552E”onpage 18.
6. Ifyouplacedtheswitchinthebay,reconnecttheportsthatyoudisconnectedin
Step 2andattachanyadditionalcablesthatarerequiredbytheswitch.
Foradditionalinformationaboutconnectingports,see“ConnectingSwitchPorts”
onpage 21,andalsothedocumentationthatcomeswiththeporttransceiver
modules,DACs,cables,andtheoptionalnetworkdevicestowhichthecableshave
beenconnected.