Transition Networks SM24TBT2DPA User manual

TransitionNetworks SM24TBT2DPAInstallGuide
33737Rev.C https://www.transition.com Page1of39
SM24TBT2DPA
ManagedGigabitEthernetPoE++Switch
(24)10/100/1000Base‐TPorts+(2)100/1000Base‐XSFP/RJ‐45
ComboPorts


InstallGuide
33737Rev.C
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

TransitionNetworks SM24TBT2DPAInstallGuide
33737Rev.C https://www.transition.com Page2of39
SafetyWarningsandCautions
Theseproductsarenotintendedforuseinlifesupportproductswherefailureofaproductcouldreasonablybeexpectedto
resultindeathorpersonalinjury.Anyoneusingthisproductinsuchanapplicationwithoutexpresswrittenconsentofan
officerofTransitionNetworksdoessoattheirownrisk,andagreestofullyindemnifyTransitionNetworksforanydamages
thatmayresultfromsuchuseorsale.
Attention:thisproduct,likeallelectronicproducts,usessemiconductorsthatcanbedamagedbyESD(electrostaticdischarge).
Alwaysobserveappropriateprecautionswhenhandling.
NOTE: Emphasizesimportantinformationorcallsyourattentiontorelatedfeaturesorinstructions.
WARNING: Alertsyoutoapotentialhazardthatcouldcausepersonalinjury.
CAUTION: Alertsyoutoapotentialhazardthatcouldcauselossofdata,ordamagethesystemorequipment.
SM24TBT2DPAManagedGigabitEthernetPoE++SwitchInstallGuide,33737Rev.C
RecordofRevisions
RevDateDescriptionofChanges
A6/25/18InitialreleaseatSWv6.54.28652018‐05‐10.
B8/15/18UpdatethePoEbudgetandaddnoteon IEC60417‐6172(2012‐09).
C12/7/18UpdatedefaultIPaddress.
Trademarknotice:Alltrademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.Allotherproducts
orservicenamesusedinthispublicationareforidentificationpurposesonly,andmaybetrademarksorregistered
trademarksoftheirrespectivecompanies.Allothertrademarksorregisteredtrademarksmentionedhereinaretheproperty
oftheirrespectiveholders.
Copyrightrestrictions:©2018TransitionNetworks,Inc.Allrightsreserved.Nopartofthisworkmaybereproducedorused
inanyformorbyanymeans(graphic,electronic,ormechanical)withoutwrittenpermissionfromTransitionNetworks.
Addresscommentsonthisproductormanualto:
TransitionNetworksInc.
10900RedCircleDrive,Minnetonka,MN55343
tel:+1.952.941.7600|tollfree:1.800.526.9267|fax:952.941.2322
[email protected]|[email protected]|[email protected]
web:https://www.transition.com


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

TransitionNetworks SM24TBT2DPAInstallGuide
33737Rev.C https://www.transition.com Page3of39
Contents
SafetyWarningsandCautions...........................................................................................................................2
Chapter1–Introduction....................................................................................................................................5
ProductOverview.....................................................................................................................................................5
Features...................................................................................................................................................................5
PoEFeatures............................................................................................................................................................5
Benefits....................................................................................................................................................................6
OrderingInformation...............................................................................................................................................6
Specifications...........................................................................................................................................................6
SoftwareFeatures....................................................................................................................................................9
ManualOverview...................................................................................................................................................13
RelatedManuals....................................................................................................................................................13
FrontPanel.............................................................................................................................................................13
LEDDescriptions................................................................................................................................................14
Mode/ResetButton...........................................................................................................................................16
BackPanel..............................................................................................................................................................16
Chapter2–InstallingtheSwitch......................................................................................................................17
PackageContents...................................................................................................................................................17
SafetyInstructionsforRackMountInstallations...................................................................................................17
MountingtheSwitchina19‐inchRack..................................................................................................................18
MountingtheSwitchonDeskorShelf...................................................................................................................18
InstallingSFPModules...........................................................................................................................................19
Grounding..............................................................................................................................................................19
PowerSupplySpecifications..................................................................................................................................20
Unpacking/Installing/ReplacingPowerSupplies................................................................................................20
UnpackingPowerSupply...................................................................................................................................20
InstallingPowerSupply......................................................................................................................................21
ReplacingPowerSupply.....................................................................................................................................22
ConnectingtheACPowerCord..............................................................................................................................22
PoEvs.PoE+vs.PoE++...........................................................................................................................................23
PoE/PoE+/PoE++Comparison............................................................................................................................23
Chapter3‐InitialSwitchConfiguration...........................................................................................................24
InitialSwitchConfigurationviaWebBrowser.......................................................................................................24
InitialSwitchConfigurationviaCLI.........................................................................................................................25
Chapter4‐Troubleshooting............................................................................................................................26
BasicTroubleshooting............................................................................................................................................26
LEDSummary.........................................................................................................................................................26
LEDTroubleshooting..............................................................................................................................................27
TroubleshootingPoEProblems..............................................................................................................................28
PoEModesandCompliance...................................................................................................................................29

TransitionNetworks SM24TBT2DPAInstallGuide
33737Rev.C https://www.transition.com Page4of39
RecordDeviceandSystemInformation.................................................................................................................32
DeviceLabelandPackagingLabel..........................................................................................................................33
Chapter5‐RegulatoryandSafetyInformation................................................................................................34
ComplianceandSafetyStatements.......................................................................................................................34
HighRiskActivitiesDisclaimer...............................................................................................................................34
DeclarationofConformity.....................................................................................................................................34
CautionsandWarnings..........................................................................................................................................35
ElectricalSafetyWarnings......................................................................................................................................36
Chapter6‐Service,Warranty&TechSupport.................................................................................................37
Warranty................................................................................................................................................................37
ContactUs..............................................................................................................................................................38


TransitionNetworks SM24TBT2DPAInstallGuide
33737Rev.C https://www.transition.com Page5of39
Chapter1–Introduction
ProductOverview
TransitionNetworks’SM24TBTDPAswitchisahighperformanceLayer2managedswitchwith52Gbpsswitching
capacity.Itprovides(24)10/100/1000copperportswithIEEE802.3btPoE++capabilityand(2)additional
100/1000dualspeedSFP/RJ‐45Comboports.TheSM24TBTDPAcomplieswiththelatestIEEE802.3btPoE++
standardandsuppliesupto90Wattsperport.Itcanprovideupto1560WattsPoEoutputwithequippedthe
dualhot‐swappablepowersupplies.TheembeddedDMS(DeviceManagementSystem)isdesignedtomakeit
easytouse,installandmanageIPPhones,IPCameras,highpowerWAPs,orLEDlighteningforenterprise
applications.
TheSM24TBT2DPAprovides(24)10/100/1000Base‐T+(2)100/1000Base‐XSFP/RJ‐45ComboportsandoneRJ45
Consoleport,andincludes(1)ACpowersupplyand19”rackmountbrackets.
Features
Hot‐swappabledualpowersupplymodules
SupportIPV4/IPV6dualprotocolstack
SupportJumboFrameupto9Kbytes
Authentication–RADIUS,TACACS+
Security‐SupportSSHv1/SSHv2/SSL
Portbasedortagged(802.1Q)VLAN,MACbased,ManagementVLANandPrivateVLANEdge
DHCPRelay,DHCPServer
L2/L3/L4ACLsSupportMACACL,IPstandard/extendedACL
LLDP(LinkLayerDiscoveryProtocol)
IEEE802.3azEnergyEfficiency
IPSourceGuard,PortSecurity
PoEFeatures
CompliantwithIEEE802.3btPoE++
CompliantwithIEEE802.3atPoE+
CompliantwithIEEE802.3afPoE
802.1ABLLDP‐MEDConfiguration
PoEConfiguration
PoEScheduling
AutoPowerReset
DHCPperPort
Softreboot(Non‐StopPoE)

TransitionNetworks SM24TBT2DPAInstallGuide
33737Rev.C https://www.transition.com Page6of39
Benefits
Feature‐richEthernetSwitchforEnterprise‐class:TheswitchdeliversadvancedfunctionalityinaL2+
managedswitchincludingLayer3staticroute,DHCPserver,Ipv6support,LLDP,etc.Italsohas
comprehensivesecurityfeaturessuchasIPsourceguardandACLtoguardyournetworkfrom
unauthorizedaccess.Itbuildsonitsmarket‐leadingprice/performancewithL2+ManagedGbEPoEswitch,
toprovidesecure,reliable,simpleenterpriseorSMBdeployments.
EasytoInstall,ConfigureandTroubleshootbyDeviceManagementSystem:TheDMSprovidesembedded
functionstofacilitatedevicemanagementanytimeandanywhere.Itsuser‐friendlyinterfacehelpsyou
managedevicesintuitively.ItsupportsvariousIPdevicetypes(e.g.IP‐phone,IP‐camera,WiFi‐AP)to
enhancemanageabilityandsavetimeandmoneyduringinstallationandmaintenancestages.
LowerTCOwithEnergy‐efficientDesign:EEEisdesignedtohelpcustomersreducepowerconsumption
andlowertheTCOwithEnergyEfficientEthernet(IEEE802.3az)featuresforbuildingagreenEthernet
networkenvironment.
PoweroverEthernetDesign:PoE++extendstheIEEEPoE+standardtodoublethepowerperportto60
watts.IthasoptionstopowerIPdeviceswithfeatureslikeSoftreboot(Non‐StopPoE),Powerscheduling,
Powerdelay,PoEAutoPowerReset,andPoEconfiguration.
OrderingInformation
SKUDescription
SM24TBT2DPA24‐portGigabitPoE++,2‐portSFP/RJ‐45ComboManagedSwitchwith1powersupply(780
Watts)standard.
PS‐AC‐920SecondaryACPowerSupply(920Watts);Optional;soldseparately.
SFPsOptionalSFPmodulessoldseparately.SeeourOpticalDeviceswebpage.
Specifications
Port Configuration
TotalPortsRJ45(10M/100M/1G)Uplinks(100M/1G)Console
26242RJ45/SFPCombo1RJ45
Hardware Performance
ForwardingCapacity SwitchingCapacity MacTableJumboFrames
38.68Mbps52Gbps8K9216Bytes
Environmental Range
OperatingTemperatureStorageTemperatureAltitude
FahrenheitCentigradeFahrenheitCentigradeFeetMeters
+32°to+104° 0°to40° ‐4°to+158° ‐20°to+70° <10000<3000

TransitionNetworks SM24TBT2DPAInstallGuide
33737Rev.C https://www.transition.com Page7of39
Dimensions, Weight, Humidity
Dimensions(WxDxH)Weight
OperatingHumidity
MillimetersInchesKilogramsPounds
442x300x4417.4x11.8x1.734.7510.4710%to90%
non‐condensing
Voltage and Frequency
ACInputVoltageandFrequency
Voltage 100‐200VAC
Frequency50~60Hz
OutputPower
Voltage 54VDC/780WperModule
PowerRedundancy,Failover,DualHotSwappablePowerSupplies
PowerConsumption
MaximumPowerConsumptionwithoutPoE:
79WattswithdualACpowermodules
52WattswithsingleACpowermodule
Power over Ethernet
PowerSupplies AvailablePoEPower
WithtwoPower
Supplies
Max90Wattsoutputperport.MaxPoEBudget1560Watts.
60Wattsfor(24)portssimultaneously
90Wattsfor(16)portssimultaneously
WithonePowerSupply
MaxPoEbudget780Watts.
30Wattsfor(24)portssimultaneously
60Wattsfor(12)portssimultaneously
90Wattsfor(8)portssimultaneously
PoE Capacity
AvailablePoEPower NumberofPortsthatSupportPoE(15.4W),PoE+(30.0W),andPoE++(60~90W)
820WwithonePower
Supply
1640WwithtwoPower
Supplies
EachofPort1‐24supportsPoE,PoE+,PoE++withinavailablePower:
OnePowerSupply:820WPoEPowerwithone920WPowerSupplymodule.
TwoPowerSupplies:1640WPoEPowerwithtwo920WPowerSupplymodules.
Standards
Standards 
IEEE802.3,802.3u,802.3z,802.3ae,802.3x,802.3ad,802.1D,802.1w,802.1s,802.1Q,
802.1p,802.1ad,802.1AB,802.3af,802.3at,802.3bt

TransitionNetworks SM24TBT2DPAInstallGuide
33737Rev.C https://www.transition.com Page8of39
Compliance
Regulation RegulatoryAgency
ElectromagneticEmissions
(EMC)
FCCPart15ClassA.
EuropeanEmissionStandardEN55022/EN61000‐3
GenericEuropeanImmunityStandard
Europeanhealth,safety,
environmentalprotectionCEMarking
SafetyIEC60950‐1,IEC60417‐6172(2012‐09)
MTBF
MTBFEnvironment
182,061Hrs.GB,GC‐GroundBenign,Controlled25.00°C
99,282Hrs.GB,GC‐GroundBenign,Controlled40.00°C




TransitionNetworks SM24TBT2DPAInstallGuide
33737Rev.C https://www.transition.com Page9of39
SoftwareFeatures
Layer2Switching
SpanningTree
Protocol(STP)
StandardSpanningTree802.1d
RapidSpanningTree(RSTP)802.1w
MultipleSpanningTree(MSTP)802.1s
Trunking
LinkAggregationControlProtocol(LACP)IEEE802.3ad
Upto13groups
Upto16portspergroup
VLAN
Supportsupto4KVLANssimultaneously(outof4096VLANIDs)
Port‐basedVLAN
802.1Qtag‐basedVLAN
MAC‐basedVLAN
ManagementVLAN
PrivateVLANEdge(PVE)
Q‐in‐Q(doubletag)VLAN
VoiceVLAN
GARPVLANRegistrationProtocol(GVRP)
DHCPRelay RelayofDHCPtraffictoDHCPserverindifferentVLAN.
WorkswithDHCPOption82
IGMPv1/v2/v3
Snooping
IGMPlimitsbandwidth‐intensivemulticasttraffictoonlytherequesters.Supports
1024multicastgroups.
IGMPQuerierIGMPquerierisusedtosupportaLayer2multicastdomainofsnoopingswitchesin
theabsenceofamulticastrouter.
IGMPProxyIGMPsnoopingwithproxyreportingorreportsuppressionactivelyfiltersIGMP
packetsinordertoreduceloadonthemulticastrouter.
MLDv1/v2SnoopingDeliversIpv6multicastpacketsonlytotherequiredreceivers.

DeviceManagementSystem(DMS)
Graphical
Monitoring
Topologyview:Supportintuitivewaytoconfigureandmanageswitchesand
deviceswithvisualrelations.
Floorview:It’seasytodraganddropPoEdevicesandhelpyoutobuildsmart
workforces.
Mapview:Enhanceefficiencytodraganddropdevicesandmonitor
surroundingsonGoogleMaps.
FindmySwitchSearchyourrealswitchesquicklyandmanagedirectly.
TrafficMonitoringDisplayvisualchartofnetworktrafficofalldevicesandmonitoreveryportatany
timefromswitches
Troubleshooting
Networkdiagnosticbetweenmasterswitchanddevices
Supportprotectionmechanismssuchasrate‐limitingtoprotectyourdevices
frombrute‐forcedownloading

TransitionNetworks SM24TBT2DPAInstallGuide
33737Rev.C https://www.transition.com Page10of39
Layer3Switching
Ipv4StaticRoutingIpv4Unicast:Staticrouting
Ipv6StaticRoutingIpv6Unicast:Staticrouting
Security
SecureShell(SSH)SSHsecuresTelnettrafficinoroutoftheswitch;SSHv1andv2aresupported
SecureSocketsLayer
(SSL)
SSLencryptsthehttptraffic,allowingadvancedsecureaccesstothebrowser‐based
managementGUIintheswitch
IEEE802.1X
IEEE802.1X:RADIUSauthentication,authorizationandaccounting,MD5hash,
guestVLAN,single/multiplehostmodeandsingle/multiplesessions
SupportsIGMP‐RADIUSbased802.1X
DynamicVLANassignment
Layer2Isolation
PrivateVLANEdge
PVE(alsoknownasprotectedports)providesL2isolationbetweenclientsinthesame
VLAN.Supportsmultipleuplinks
PortSecurityLocksMACaddressestoports,andlimitsthenumberoflearnedMACaddress
IPSourceGuardPreventsillegalIPaddressfromaccessingtospecificportintheswitch
RADIUS/TACACS+ SupportsRADIUSandTACACS+authentication.Switchasaclient.
StormControlPreventstrafficonaLANfrombeingdisruptedbyabroadcast,multicast,orunicast
stormonaport
DHCPSnoopingAfeatureactsasafirewallbetweenuntrustedhostsandtrustedDHCPservers
ACLs
Supportsupto256entries.Droporratelimitationbasedon:
SourceanddestinationMAC,VLANIDorIPaddress,protocol,port,
Differentiatedservicescodepoint(DSCP)/IPprecedence
TCP/UDPsourceanddestinationports
802.1ppriority
Ethernettype
InternetControlMessageProtocol(ICMP)packets
TCPflag
QualityofService(QoS)
HardwareQueue Supports8hardwarequeues
SchedulingStrictpriorityandweightedround‐robin(WRR)
QueueassignmentbasedonDSCPandclassofservice
Classification
Portbased
802.1pVLANprioritybased
Ipv4/Ipv6precedence/DSCPbased
DifferentiatedServices(DiffServ)
Classificationandre‐markingACLs

TransitionNetworks SM24TBT2DPAInstallGuide
33737Rev.C https://www.transition.com Page11of39
RateLimiting
Ingresspolicer
Egressshapingandratecontrol
Perport
Management
DHCPServerSupportDHCPservertoassignIPtoDHCPclients
DHCPperPort
YoucanassignanIPaddressbasedontheswitchportthedeviceisconnectedto.
ThiswillspeedupinstallationsofIPcameras;camerascanbeconfiguredafterthey
areonthenetwork.Theper‐portassignmentallowsyoutoknowwhichIPwas
assignedtowhichcamera.
Link‐LocalAddress
bindinginterface
ConfigureLink‐LocalIPaddresstoadifferentVLANinterface.ThefirstIPinterface
entry(169.254.xx.xx)isforthedefaultvalue(VLAN1).Alink‐localaddressisaunicast
addresshavinglink‐onlyscopethatcanbeusedtoreachneighbors.Allinterfaceson
routersmusthavealink‐localaddress.Also,ADDRCONFrequiresthatinterfaceson
hostshavealink‐localaddress.
EventNotifications
EventNotificationviaSyslogand/orSNMPTraps
EventNotificationwith8Severitylevels
RemoteMonitoring
(RMON)
EmbeddedRMONagentsupportsRMONgroups1,2,3,9(history,statistics,alarms,
andevents)forenhancedtrafficmanagement,monitoringandanalysis
PortMirroring
Trafficonaportcanbemirroredtoanotherportforanalysiswithanetworkanalyzer
orRMONprobe.Upton‐1(wherenisthemaxnumberofSwitchPorts)portscanbe
mirroredtosingledestinationport.Asinglesessionissupported.
UPnPTheUniversalPlugandPlayForum,anindustrygroupofcompaniesworkingtoenable
device‐to‐deviceinteroperabilitybypromotingUniversalPlugandPlay
s‐Flow
Theindustrystandardformonitoringhighspeedswitchednetworks.Itgivescomplete
visibilityintotheuseofnetworksenablingperformanceoptimization,
accounting/billingforusage,anddefenseagainstsecuritythreats
IEEE802.1ab(LLDP)
Usedbynetworkdevicesforadvertisingtheiridentities,capabilities,and
neighborsonanIEEE802ablocalareanetwork
SupportLLDP‐MEDextensions
WebGUIInterfaceBuilt‐inswitchconfigurationutilityforbrowser‐baseddeviceconfiguration
CLIForconfiguring/managingswitchinCommandLineInterfacemodes
DualImageIndependentprimaryandsecondaryimagesforbackupwhileupgrading
SNMP SNMPversion1,2cand3withsupportfortraps,andSNMPversion3user‐based
securitymodel(USM)
FirmwareUpgradeWebbrowserupgrade(HTTP/HTTPs)andTFTP
Upgradeviatheconsoleport
NTPNetworkTimeProtocol(NTP)isanetworkingprotocolforclocksynchronization
betweencomputersystemsoverpacket‐switched

TransitionNetworks SM24TBT2DPAInstallGuide
33737Rev.C https://www.transition.com Page12of39
OtherManagement
HTTP/HTTPs;SSH
DHCPClient/DHCPv6Client
CableDiagnostics
Ping
Syslog
TelnetClient
IPv6Management
PoweroverEthernet(PoE)
PortConfigurationSupportsper‐portPoEconfigurationfunction
PoESchedulingSupportsperportPoEschedulingtoturnon/offthePoEdevices(PDs)
AutoPowerResetAPRchecksthelinkstatusofPDsandrebootsPDsiftherearenoresponses
PowerDelayTheswitchprovidespowertothePDsbasedondelaytimewhenPoEswitchbootsup,
inordertoprotectswitchfrommisuseofthePDs
SoftBoot(soft
reboot)
Non‐StopPoEfeatureletsyouupgradeswitchfirmwareorrebootwhileretainingPoE
powertoPDs


TransitionNetworks SM24TBT2DPAInstallGuide
33737Rev.C https://www.transition.com Page13of39
ManualOverview
Thismanualdescribeshowtoinstall,initiallyconfigure,andtroubleshoottheSM24TBT2DPASwitch,including:
ChecktheswitchstatusbyreadingtheLEDbehavior,
Resettheswitchortorestoretheswitchtofactorydefaults,
Installtheswitch,
UseaWebbrowsertoinitiallyconfiguretheswitch,and
Troubleshoottheswitch.
RelatedManuals
AprintedQuickStartGuideisshippedwitheachdevice.Otherrelatedmanualsinclude:
SM24TBT2DPAQuickStartGuide,33736
SM24TBT2DPAWebUserGuide,33738
SM24TBT2DPACLIReference,33739
ReleaseNotes(versionspecific)
ForTransitionNetworksDrivers,Firmware,etc.gototheProductSupportwebpage(logonrequired).
ForTransitionNetworksManuals,Brochures,DataSheets,etc.gototheSupportLibrary(nologonrequired).
ForSFPmanualsseeTransitionNetworksSFPwebpage.
FrontPanel
TheSM24TBT2DPAfrontpanelLEDs,portsandbuttonsareshownanddescribedbelow.

TransitionNetworks SM24TBT2DPAInstallGuide
33737Rev.C https://www.transition.com Page14of39
LED Descriptions
TheLEDsonthefrontpanelprovideswitchstatuscheckingandmonitoring.ThethreetypesofLEDsaredescribed
below:
SYS(System)LED:indicatesiftheswitchispoweredupcorrectlyorindicatesifthereisasystemalarmtriggered
fortroubleshooting.
SystemLED
LED ColorStateDescription
System
Green
OnTheswitchispoweredONcorrectly.
OffTheswitchisnotreceivingpower.
RedOnAnabnormalstate,suchasexceedingoperatingtemperature
range,hasbeendetectedintheswitch.
ModeLEDs:indicatethemodeofallRJ45/SFPportsontheswitch.YoucanpresstheModebuttonsequentially
toswitchamongthetwodifferentmodes(Link/Activity/SpeedmodeandPoEmode).
ModeLEDs
LEDColorStateDescription
Link/Act/SpeedGreenOnThePortStatusLEDsdisplaylinkstatus,networkactivityand
speedofeachport.
PoEGreenOnTheRJ45PortStatusLEDsdisplayPoEpoweringstatusofeach
port.

PowerSupplyLEDs:TheLEDsonthePowerSupplyindicatePowerSupplystatus.
PowerSupplyLEDs
LEDColorStateDescription
DCOK
Green
Red
‐‐
On
On
Off
DCoutputisready.
DCoutputhasfailed.
DCoutputisoff.
ACOK
Green
Red
‐‐
On
On
Off
ACoutputisready.
ACoutputhasfailed.
ACoutputisoff.


TransitionNetworks SM24TBT2DPAInstallGuide
33737Rev.C https://www.transition.com Page15of39
PortStatusLEDs:indicatethecurrentstatusofeachRJ45/SFPport.YoucanchecktheseLEDstounderstandthe
portstatusindifferentmodes,afterchangingthemodebypressingModebutton.
PresstheMODEbuttonforlessthan2secondstochangeLEDmodes(Link/Act/SpeedModeorPoEMode);you
canthenchecktheportstatusbyreadingtheLEDbehaviorsperthetablebelow.
Table3:PortStatusLEDs
WhenLink/Act/SpeedModeLEDLit
LEDColorStateDescription
RJ45
Ports
GreenOnTheportisenabledandestablishedalinktoconnecteddevice,andtheconnection
speedis1000Mbps.
GreenBlinkingTheportistransmitting/receivingpackets,andtheconnectionspeedis1000Mbps.
AmberOnTheportisenabledandestablishedalinktoconnecteddevice,andtheconnection
speedis10/100Mbps.
AmberBlinkingTheportistransmitting/receivingpackets,andtheconnectionspeedis
10/100Mbps.
‐‐ Off
Theporthasnoactivenetworkcableconnected,oritisnotestablishedalinkto
connecteddevice.Otherwise,theportmayhavebeendisabledthroughtheswitch
userinterface.
SFP
Ports
GreenOnTheportisenabledandestablishedalinktoconnecteddevice,andtheconnection
speedis1000Mbps.
GreenBlinkingTheportistransmitting/receivingpackets,andtheconnectionspeedis1000Mbps.
AmberOnTheportisenabledandestablishedalinktoconnecteddevice,andtheconnection
speedis100Mbps.
AmberBlinkingTheportistransmitting/receivingpackets,andtheconnectionspeedis100Mbps.
‐‐ Off
Theporthasnoactivenetworkcableconnected,oritisnotestablishedalinkto
connecteddevice.Otherwise,theportmayhavebeendisabledthroughtheswitch
userinterface.
WhenPoEModeLEDLit
LEDColorStateDescription
RJ45
Ports
GreenOnTheportisenabledandsupplyingpowertoconnecteddevice.
AmberOnAnabnormalstate,suchasoverloadstatus,hasbeendetectedintheswitch.
‐‐ Off
Theporthasnoactivenetworkcableconnected,oritisnotconnectedaPoEPD
device.Otherwise,theportmayhavebeendisabledthroughtheswitchuser
interface.



TransitionNetworks SM24TBT2DPAInstallGuide
33737Rev.C https://www.transition.com Page16of39
Mode/Reset Button
PressingthefrontpanelMode/Resetbuttonforaperiodoftimeletsyou
performthesetasks:
ChangePortStatusLEDMode:toreadtheportstatuscorrectlyinthetwo
differentmodes(Link/Act/SpeedmodeorPoEmode).
ResettheSwitch:torebootandgettheswitchbacktotheprevious
configurationsettingssaved.NotethatthereisalsoaNon‐StopPoE(soft
reboot)featureallowstheswitchtorebootwithoutaffectingPoEportpowerviatheWebUIorCLI.
RestoretheSwitchtoFactoryDefaults:torestoretheoriginalfactorydefaultsettingsbacktotheswitch.
Note:UsethetablebelowtodeterminewhichtaskisbeingperformedbyreadingtheLEDbehaviorswhile
pressingandholdingtheMode/Resetbutton.WhentheLEDbehaviordisplayscorrectly,releasethebutton.
Table4:Mode/ResetButtonDescriptions
TasktoPerformPressButtonforSYSLEDBehaviorPortStatusLEDBehavior
ChangeLEDMode0~2secondsONGreenLEDstatuswillchangebasedonthemode
selected.
ResettheSwitch2~7secondsBlinkingGreenALLLEDsOff.
RestoretoDefaults7~12secondsBlinkingGreenALLLEDsstayOn.
BackPanel
Thebackpanelprovidesfordualhot‐swappable1560Wpowersuppliesforpoweringtheswitch.Theswitchships
withonepowersupply(780Watts)standard;orderthesecondarypowersupplymodule(1560Watts)ifthefull
90Wattsoutputisneededonallports.
PowerCordincluded.Toorderthecorrespondingcountry‐specificpowercord,addtheextensiontotheendof
theSKU(e.g.,SM24TBT2DPA‐NA=NorthAmerica,‐LA=LatinAmerica,‐EU=Europe,‐UK=UnitedKingdom,‐SA
=SouthAfrica,‐JP=Japan,‐OZ=Australia,‐BR=Brazil).


TransitionNetworks SM24TBT2DPAInstallGuide
33737Rev.C https://www.transition.com Page17of39
Chapter2–InstallingtheSwitch
PackageContents
Checkthepackagecontentstomakesureyouhavereceivedthefollowingitems.Contactyoursales
representativeifanyitemisdamagedormissing.Pleasesavethepackagingforpossiblefutureuse.
OneSM24TBT2DPASwitchwithsingleACPowerSupplyModule
OneTNPostcard(33504)
OneQuickStartGuide(33736)
OneDB9FtoRJ45Cable(6WPDB92RJ453)
FourRubberFeet(6RR2005AB4B2)
TwoBrackets(6EFS226C0E09)
EightScrews(6PF+UN3X5000)
Note:Theswitchisanindoordevice.IfitistobeusedwithoutdoordevicessuchasoutdoorIPcamerasor
outdoorWiFiAPs,thenitisstronglysuggestedyouinstallasurgeprotectororsurgesuppressorinorderto
protecttheswitch.
 
SafetyInstructionsforRackMountInstallations
Theinstructionsbelow(orsimilar)areintendedforrackmountinstallationenvironments:
1. ElevatedOperatingAmbient:ifinstalledinaclosedormulti‐unitrackassembly,theoperatingambient
temperatureoftherackenvironmentmayexceedroomambient.Installtheequipmentinanenvironment
compatiblewiththemaximumambienttemperature(Tma)specified.
2. ReducedAirFlow:installtheequipmentinaracksothattheamountofairflowrequiredforsafeoperationis
notcompromised.
3. MechanicalLoading:Mounttheequipmentintheracksothatahazardousconditiondoesnotoccurdueto
unevenmechanicalloading(weightdistribution/rackbalance).
4. CircuitOverloading:giveconsiderationtotheconnectionoftheequipmenttothesupplycircuitandthe
effectthatoverloadingofthecircuitsmighthaveonovercurrentprotectionandsupplywiring.Considerall
equipmentnameplateratingswhenaddressingthisconcern.
5. ReliableEarthing:maintainreliableearthingofrack‐mountedequipment;payparticularattentiontosupply
connectionsotherthandirectconnectionstothebranchcircuit(e.g.,useofpowerstrips).

TransitionNetworks SM24TBT2DPAInstallGuide
33737Rev.C https://www.transition.com Page18of39
MountingtheSwitchina19‐inchRack
1. Attachthemountingbracketstobothsidesofthechassis.Insertscrewsandtightenwithascrewdriverto
securethebrackets.

2. Placetheswitchonarackshelfintherack.Pushitinuntiltheovalholesinthebracketsalignwiththe
mountingholesintherackposts.

3. Attachthebracketstotheposts.Insertscrewsandtightenthem.
MountingtheSwitchonDeskorShelf
1. Verifythattheworkbenchissturdyandreliablygrounded.
2. Attachthefouradhesiverubberfeettothebottomoftheswitch.


TransitionNetworks SM24TBT2DPAInstallGuide
33737Rev.C https://www.transition.com Page19of39
InstallingSFPModules
Youcaninstallorremoveamini‐GBICSFPmodulefromaSFPportwithouthavingtopowerofftheswitch.
Note:TheSFPportsshoulduseULListedOptionalTransceiverproduct,Rated3.3Vdc,LaserClass1.SeetheSFP
manualforspecificcautions,warnings,andinstructions.SeetheTransitionNetworksSFPpageforourfullrange
ofOpticalDevices.
Duringinstallationandmaintenance,avoiddirectexposuretolaserbeams.Specifically,donotlookintolaser
ports.EnsurethateachSFPportatwhichlaserbeamsare(orwillbe)presentisoccupiedbyanSFPthatislocked
inposition.
1. PositiontheSFPdeviceateitherinstallationslot,withtheSFPlabelfacingup(Port25)ordown(Port26).
2. CarefullyslidetheSFPdeviceintotheslot,aligningitwiththeinternalinstallationguides.
3. PressfirmlytoensurethattheSFPdeviceisfirmlyseatedagainsttheinternalmatingconnector.
4. AttachanappropriatecableintotheSFPmoduleport.
5. Attachtheotherendofthecabletotheotherdevice.
Note:DonotremoveandreplacetheSFPmodulesmoreoftenthannecessary;excessiveSFPremoving/replacing
canshortentheSFPsusefullife.



Grounding
ATTENTION:
Thiscasemustbeearthgrounded.
NoDCinputmaybeearthgrounded.
UseIsolatedPowerSupply.

TransitionNetworks SM24TBT2DPAInstallGuide
33737Rev.C https://www.transition.com Page20of39
PowerSupplySpecifications
CAUTION!HazardousArea:DoNotremovethiscover.Trainedservice
peopleonly.Noserviceablecomponentsinside.
LEDs:DCOKandACOKLEDsonfrontpanel.See“PowerSupplyLEDs”on
page13.
Dimensions(HxWxD):1‐9/16”x2‐13/16”x8‐9/16”(25.4mx50.8mmx
203.2mm)
Warranty:5yearswarrantyforthePS‐AC‐920.
Unpacking/Installing/ReplacingPowerSupplies
Theswitchshipswithonepowersupply(780Watts)standard;orderthesecondPowerSupply(780Watts)ifthe
full90Wattsoutputisneededonallports.

Unpacking Power Supply
Theoptionalsecondpowersupplyispackedseparately,ifordered.Unpacktheoptionalsecondpowersupplyand
savethepackagingforpossiblefutureuse.
