GE GBX24 Quick user guide
GE
Intelligent Platforms
Hardware Reference Manual
GBX24 VME 24 Port Gigabit Ethernet Switch
Edition 2
Publication No. GBX24-0HH/2
2 GBX24 VME 24 Port Gigabit Ethernet Switch Publication No. GBX24-0HH/2
Document History
Edition Date Board Artwork Revision
First February 2008 Rev 2
2 September 2010 Rev 4
Waste Electrical and Electronic Equipment (WEEE) Returns
GE Intelligent Platforms Limited is registered with an approved Producer Compliance Scheme (PCS) and,
subject to suitable contractual arrangements being in place, will ensure WEEE is processed in
accordance with the requirements of the WEEE Directive.
GE Intelligent Platforms Limited will evaluate requests to take back products purchased by our
customers before August 13, 2005 on a case by case basis. A WEEE management fee may apply.
Publication No. GBX24-0HH/2 About this Manual 3
About this Manual
Conventions
Numbers
Allnumbersareexpressedindecimal,exceptaddressesandmemoryorregister
data,whichareexpressedinhexadecimal.Whereconfusionmayoccur,decimal
numbershavea“D”subscriptandbinarynumbershavea“b”subscript.Theprefix
“0x”showsahexadecimalnumber,followingthe‘C’programminglanguage
convention.Thus:
Onedozen=12D=0x0C=1100b
Themultipliers“k”,“M”and“G”havetheirconventionalscientificandengineering
meaningsof*103,*106and*109respectively.Theonlyexceptiontothisisinthe
descriptionofthesizeofmemoryareas,when“K”,“M”and“G”mean*210,*220and
*230respectively.
NOTE
When describing transfer rates, “k”, “M” and “G” mean *103, *106and *109not *210, *220 and *230.
Multiplebitfieldsarenumberedfrom0ton,where0istheLSBandnistheMSB.
Text
Signalnamesendingwithatilde(~)denoteactivelowsignals;allothersignalsare
activehigh.
Filenamesareshowninbold,e.g.apps/code.exe.
Whenshowinguserinteractiononaterminal,messagesfromthesystemareshown
incouriertypeface,i.e.messages,anduserinputisshowninboldcouriertypeface,
i.e.user input.Thesymbol“↵”isusedtorepresentthe‘↵’,‘enter’,‘return’etc.
keyonthekeyboard.
4 GBX24 VME 24 Port Gigabit Ethernet Switch Publication No. GBX24-0HH/2
Notices
Thismanualusesthefollowingtypesofnotice:
NOTE
Notes call attention to important features or instructions.
WARNING
Warnings alert you to the risk of severe personal injury.
CAUTION
Cautions alert you to system danger or loss of data.
TIP
Tips give helpful hints on how to achieve things.
LINK
Links take you to other documents or websites. The purple link color may also be used within a body
of text or paragraph to indicate a link (or hyperlink) to a different part of the same document.
Further Information
GE Intelligent Platforms Documents
ThisdocumentisdistributedviaCD‐ROMandtheinternet.TheCD‐ROMallows
privilegedaccesstoanInternetresourcecontainingthelatestupdateddocuments.
Alternatively,youmayregisterforaccesstoallmanualsviathewebsitewhoselink
isgivenoverleaf.
LINKS
I/O Modules Manual, publication number RT5154.
GBX24 BIT Software Reference Manual, publication number GBXBIT-0HL.
Getting Started with the Switch Management Software Application Note, publication number
SWMANSW-AN1.
Third Party Documents
DuetothecomplexityofsomeofthepartsusedontheGBX24,itisnotpossibleto
includeallthedetaileddataonallsuchdevicesinthismanual.Alistofthe
specificationsanddatasheetsthatprovideadditionalinformationfollows:
VME64SpecificationANSI/VITA1‐1994April1995.VMEbusInternationalTrade
AssociationAZ85253USA.
VME64ExtensionsSpecificationANSI/VITA1.1‐1997.VMEbusInternationalTrade
AssociationAZ85253USA.
ANSI/VITA31.1‐2003GigabitEthernetonVME64xBackplanes.
PCILocalBusSpecification,Revision2.1,June11995.PCISpecialInterestGroupOR
98214USA.
Publication No. GBX24-0HH/2 About this Manual 5
PCISystemDesignGuide.
IEEEStd802.3LocalAreaNetworks:CarrierSenseMultipleAccesswithCollision
Detection(CSMA/CD)‐(ETHERNET)(1985)TheInstituteofElectronicandElectrical
EngineersInc.,NY10017USA.
ANSI/EIA/TIA‐232‐E‐InterfaceBetweenDataTerminalEquipmentandData
CommunicationsEquipmentEmployingSerialBinaryDataInterchange(December
1991)ElectronicIndustriesAssociation,DC20006USA.
IEEEStd802.1
RFC854to859(Telnet)
RFC1157(SNMP)
Thesearethelatestversionsattimeofwriting;checkassociatedwebsitesforlater
updates.
NOTE
Registration may be required for access to these specifications.
GE Web Site
InformationregardingallGEIntelligentPlatforms(GEIP)productscanbefoundon
thefollowingwebsite:
LINK
http://www.ge-ip.com/products/family/embedded-systems/
Third Party Web Sites
ManufacturersofmanyofthedevicesusedontheGBX24maintainFTPorwebsites.
Someusefulsitesare:
http://www.vita.com forVITAandANSI/VITAstandards.
http://www.ieee.com forIEEEstandards.
http://www.pcisig.org forPCIBusstandards.
NOTE
Registration may be required for access to standards.
6 GBX24 VME 24 Port Gigabit Ethernet Switch Publication No. GBX24-0HH/2
Technical Support Contact Information
TechnicalassistancecontactdetailscanbefoundonthewebsiteSupportLocator
page.Theappropriatelocationisheaded“DSP,SBCs,MultiprocessorsandGraphics
(formerlyRadstone)”.
LINK
http://www.ge-ip.com/support/embeddedsupport/locator.
QuerieswillbeloggedontheTechnicalSupportdatabaseandallocatedaunique
ServiceRequest(SR)numberforuseinfuturecorrespondence.
Alternatively,youmayalsocontactGEIntelligentPlatforms’TechnicalSupportvia:
LINK
support.towcest[email protected]
TELEPHONE
+44 (0) 1327 322760
Returns
Ifyouneedtoreturnaproduct,thereisaReturnMaterialsAuthorization(RMA)
requestformthatcanbeprintedoutandfilledin,availableviathewebsiteRepairs
page.
LINK
http://www.ge-ip.com/support/embeddedsupport/rmalocator.
Followthe“DownloadRMA Request Form (Word Doc)”hyperlinkunder“DSP,SBCs,
MultiprocessorsandGraphics(FormerlyRadstone)”.
Donotreturnproductswithoutfirstcontactingthefactory.
Publication No. GBX24-0HH/2 Contents 7
Contents
1 • Introduction .............................................................................................................................................. 11
1.1 Safety Notices....................................................................................................................................................................................... 13
1.1.1 Flammability .....................................................................................................................................................................................................13
1.1.2 Backplane Requirements............................................................................................................................................................................13
1.1.3 EMI/EMC Regulatory Compliance ...........................................................................................................................................................13
1.1.4 Cooling.................................................................................................................................................................................................................14
1.1.5 Laser .....................................................................................................................................................................................................................14
1.1.6 Handling..............................................................................................................................................................................................................14
1.1.7 Heatsink ..............................................................................................................................................................................................................14
2 • Unpacking.................................................................................................................................................. 15
2.1 Box Contents Checklist .................................................................................................................................................................... 15
2.2 Identifying Your Board...................................................................................................................................................................... 16
3 • Configuration ........................................................................................................................................... 17
3.1 Link Configuration .............................................................................................................................................................................. 17
3.2 Inspection............................................................................................................................................................................................... 17
3.3 Link Descriptions................................................................................................................................................................................. 18
3.3.1 JTAG Mode Select (J12) ................................................................................................................................................................................18
3.3.2 Board Configuration (J15)...........................................................................................................................................................................18
4 • Installation and Power Up.................................................................................................................. 19
4.1 Board Installation Notes.................................................................................................................................................................. 19
4.2 Connecting to GBX24........................................................................................................................................................................ 20
4.2.1 Serial Connection to a Terminal/HyperTerminal (COM1/2).........................................................................................................20
4.2.2 Out-of-band Ethernet Service Port (MNG)...........................................................................................................................................20
4.2.3 Copper Switched 10/100/1000BaseT Ethernet Ports....................................................................................................................21
4.2.4 Optional Fiber Switched Ethernet Ports...............................................................................................................................................21
4.2.5 I/O Modules .......................................................................................................................................................................................................21
4.3 System Set-up ...................................................................................................................................................................................... 23
4.4 Power-up ................................................................................................................................................................................................ 23
5 • Functional Description......................................................................................................................... 24
5.1 Introduction........................................................................................................................................................................................... 24
5.2 Features .................................................................................................................................................................................................. 24
5.3 Hardware Reset Configuration .................................................................................................................................................... 26
5.4 LEDs........................................................................................................................................................................................................... 26
5.4.1 BIT LEDs...............................................................................................................................................................................................................26
5.4.2 MNG and CPU LEDs .......................................................................................................................................................................................26
5.4.3 Gigabit Switch LEDs.......................................................................................................................................................................................27
5.4.4 Rear LEDs............................................................................................................................................................................................................28
5.5 Front Panel............................................................................................................................................................................................. 29
(continued overleaf)
8 GBX24 VME 24 Port Gigabit Ethernet Switch Publication No. GBX24-0HH/2
6 • Connectors................................................................................................................................................ 30
6.1 VMEbus Connectors .......................................................................................................................................................................... 31
6.1.1 P1 Connector ....................................................................................................................................................................................................31
6.1.2 P0 Connector ....................................................................................................................................................................................................32
6.1.3 P2 Connector ....................................................................................................................................................................................................33
6.1.4 Signal Descriptions.........................................................................................................................................................................................34
6.2 J10 Header (10/100BaseT Management Ethernet Port).................................................................................................. 35
6.3 J11 Header (RTC +5V Standby Supply Input)......................................................................................................................... 35
6.4 J13 Header (PLD Programming) .................................................................................................................................................. 35
6.5 J14 Header (Board Debug)............................................................................................................................................................. 36
6.6 J16 Header (COM1/COM2 Serial Ports) .................................................................................................................................... 36
6.7 P25 Connector (COM1/COM2 Serial Ports) ............................................................................................................................. 36
6.8 J600 to J602 Connectors (OXB Connectors).......................................................................................................................... 37
A • Specifications........................................................................................................................................... 38
A.1 Technical Specification.................................................................................................................................................................... 38
A.2 Electrical Specification..................................................................................................................................................................... 39
A.3 Reliability (MTBF).................................................................................................................................................................................. 40
A.4 Environmental Specifications....................................................................................................................................................... 41
A.5 Mechanical Specification................................................................................................................................................................ 42
A.5.1 Dimensions........................................................................................................................................................................................................42
A.5.2 Weight..................................................................................................................................................................................................................43
A.6 Product Code Information.............................................................................................................................................................. 44
A.6.1 Software Support............................................................................................................................................................................................44
A.6.2 I/O Modules .......................................................................................................................................................................................................45
Glossary.............................................................................................................................................................. 46
Index .................................................................................................................................................................... 47
Publication No. GBX24-0HH/2 List of Tables 9
List of Tables
Table 3-1 J12 Functionality......................................................................................................................................................................... 18
Table 3-2 J15 Functionality......................................................................................................................................................................... 18
Table 5-1 MNG and CPU LEDs.................................................................................................................................................................... 26
Table 5-2 Gigabit Switch LEDs................................................................................................................................................................... 27
Table 5-3 Rear LEDs........................................................................................................................................................................................ 28
Table 6-1 Connector Functions................................................................................................................................................................. 30
Table 6-2 P1 Pin Assignments.................................................................................................................................................................... 31
Table 6-3 P0 Pin Assignments.................................................................................................................................................................... 32
Table 6-4 P2 Pin Assignments.................................................................................................................................................................... 33
Table 6-5 Signal Descriptions..................................................................................................................................................................... 34
Table 6-6 J10 Pin Assignments ................................................................................................................................................................. 35
Table 6-7 J11 Pin Assignments ................................................................................................................................................................. 35
Table 6-8 J13 Pin Assignments ................................................................................................................................................................. 35
Table 6-9 J14 Pin Assignments ................................................................................................................................................................. 36
Table 6-10 J16 Pin Assignments............................................................................................................................................................... 36
Table 6-11 P25 Pin Assignments .............................................................................................................................................................. 36
Table A-1 Technical Data ............................................................................................................................................................................. 38
Table A-2 Power Requirements................................................................................................................................................................. 39
Table A-3 Reliability (MTBF).......................................................................................................................................................................... 40
Table A-4 Convection-cooled Environmental Specifications...................................................................................................... 41
Table A-5 Conduction-cooled Environmental Specifications..................................................................................................... 41
Table A-6 Spray-cooled Environmental Specification.................................................................................................................... 41
Table A-7 Product Codes.............................................................................................................................................................................. 44
10 GBX24 VME 24 Port Gigabit Ethernet Switch Publication No. GBX24-0HH/2
List of Figures
Figure 1-1 GBX24 Front (metalwork removed for clarity)............................................................................................................. 12
Figure 1-2 GBX24 Rear (metalwork removed for clarity) .............................................................................................................. 12
Figure 1-3 ESD Label (Present on Board Packaging) ...................................................................................................................... 14
Figure 2-1 Box Contents............................................................................................................................................................................... 15
Figure 2-2 Product Label (Packaging) .................................................................................................................................................... 16
Figure 2-3 Product Label (Product).......................................................................................................................................................... 16
Figure 2-4 Product Label (Conduction-cooled Product)................................................................................................................ 16
Figure 3-1 Link Positions............................................................................................................................................................................... 17
Figure 4-1 Quick Start I/O Module Set-up............................................................................................................................................ 22
Figure 4-2 Quick Start System Set-up.................................................................................................................................................... 23
Figure 5-1 Block Diagram ............................................................................................................................................................................ 25
Figure 5-2 BIT, MNG and CPU LEDs......................................................................................................................................................... 26
Figure 5-3 Gigabit Switch LEDs ................................................................................................................................................................. 27
Figure 5-4 Rear LED Positions.................................................................................................................................................................... 28
Figure 5-5 Front Panels................................................................................................................................................................................. 29
Figure 6-1 Front Connector Positions and Numbering ................................................................................................................. 30
Figure 6-2 Rear Connector Positions and Numbering................................................................................................................... 37
Figure A-3 Air-cooled Dimensions ........................................................................................................................................................... 42
Figure A-4 Conduction-cooled Dimensions ........................................................................................................................................ 43
Publication No. GBX24-0HH/2 Introduction 11
1 • Introduction
TheGEIntelligentPlatformsGBX24isahighperformanceruggedizedintelligent
GigabitEthernetswitchprovidingtheconnectiveflexibilityofuptotwentyfour
1000/100/10Mbpsports,optionallyconfiguredas24copperGigabitportsor20
copperGigabitportsand4fiberports(SXandLXopticsoptionsareavailable).
TheGBX24incorporatesadvancedmanagementsoftwareallowingguaranteed
bandwidthperportorperVLAN.Portaggregationallowsmultipleportstoactasa
singletrunk,orprovidesredundantportsforreliabilitywithinyournetwork.
TheGigabitswitchusesstore‐and‐forwardswitchingarchitecturethatfiltersand
forwardsdataafterthecompletedatapacketisreceivedandexaminedtobefreeof
errors.FrontpanelLEDsallowforeasyrecognitionoftheswitchoperationstatus
andfortroubleshooting.
AllGigabitportssupportbothfullandhalfduplexoperation,whichcanprovideup
to2000Mbpsofbandwidthtotheconnecteddevices,withauto‐negotiation
providingthecapabilitytoconnectto10/100/1000Mbpsnetworkdevices.The
GBX24alsosupportsback‐pressureandIEEE802.3xadvancedflowcontrol
capability,whichcanreducecongestionandpreventpacketloss.
Inaddition,allportssupporttheMDI/MDI‐Xauto‐detectfunction.Thisallows
connectionofanydevice(includingembeddedEthernetadaptersand
Switches/Hubs)totheportofthisswitchusingtheregularcable,withtheRJ‐45port
auto‐detectingandauto‐switchingtoMDI/MDI‐Xmodewithoutrequiringanuplink
portorcross‐overcable.
TheGBX24isfullyintegratedandprovidesmanagementsoftware.Asstandard,the
GBX24incorporatesBuilt‐In‐Test(BIT),whichprovidesextensiveandconfigurable
testingoftheGBX24hardware.
TheGBX24providesmaximumthroughputandflexibilityfordemandingnetworks,
withallthelayer3featuresyouexpect.TheruggedGBX24isidealasabackbonefor
agigabitserverorastherobustcoreofademanding,all‐gigabitnetwork.
TheGBX24layer3/4managedGigabitswitchprovidesbothlayer2andlayer3
switchingfunctionality.Itshigh‐performancedesignoffersacomprehensivesetof
features:
•Switching:Porttrunking,broadcaststormprotection,extensiveVLANsupport,
IGMPsnooping,RapidSpanningTreeandlinkaggregation
•QualityofService:DiffServandbandwidthprovisioning
TheGBX24isavailableinarangeofbuildstyles,fromLevel1(Standard),suitable
forabenignoffice‐likeenvironment,rightthroughtoLevel5(RuggedConduction‐
cooled),capableofwithstandingtheharshestofenvironments.
12 GBX24 VME 24 Port Gigabit Ethernet Switch Publication No. GBX24-0HH/2
Figure 1-1 GBX24 Front (metalwork removed for clarity)
Figure 1-2 GBX24 Rear (metalwork removed for clarity)
Publication No. GBX24-0HH/2 Introduction 13
1.1 Safety Notices
Thefollowinggeneralsafetyprecautionsrepresentwarningsofcertaindangersof
whichGEIntelligentPlatformsisaware.Failuretocomplywiththeseorwith
specificWarningsand/orCautionselsewhereinthismanualviolatessafety
standardsofdesign,manufactureandintendeduseoftheequipment.GEIPassumes
noliabilityfortheuser’sfailuretocomplywiththeserequirements.
Alsofollowallwarninginstructionscontainedinassociatedsystemequipment
manuals.
WARNINGS
Use extreme caution when handling, testing and adjusting this equipment. This device may operate in
an environment containing potentially dangerous voltages.
Ensure that all power to the system is removed before installing any device.
To minimize shock hazard, connect the equipment chassis and rack/enclosure to an electrical ground.
If AC power is supplied to the rack/enclosure, the power jack and mating plug of the power cable must
meet IEC safety standards.
1.1.1 Flammability
ThecircuitboardismadebyaUL‐recognizedmanufacturerandhasaflammability
ratingofUL94V‐1.
1.1.2 Backplane Requirements
CAUTION
Only use the GBX24 in backplanes that supply power on both the J1 and J2 connectors. Use of
backplanes that supply power on the J1 connector only may cause excessive current to be drawn
through the power pins
1.1.3 EMI/EMC Regulatory Compliance
CAUTION
This equipment generates, uses and can radiate electromagnetic energy. It may cause or be
susceptible to EMI if not installed and used in a cabinet with adequate EMI protection.
TheGBX24isdesignedusinggoodEMCpracticesand,whenusedinasuitably
EMC‐compliantchassis,shouldmaintainthecomplianceofthetotalsystem.The
GBX24alsocomplieswithEN60950(productsafety),whichisessentiallythe
requirementfortheLowVoltageDirective(73/23/EEC).
Air‐cooledbuildlevelsoftheGBX24aredesignedforuseinsystemsmeetingVDE
classB,ENandFCCregulationsforEMCemissionsandsusceptibility.
Conduction‐cooledbuildlevelsoftheGBX24aredesignedforintegrationintoEMC
hardenedcabinets/boxes.
14 GBX24 VME 24 Port Gigabit Ethernet Switch Publication No. GBX24-0HH/2
1.1.4 Cooling
CAUTION
The GBX24 requires air-flow of at least 300 feet/minute for build levels 1 and 2, and at least
600 feet/minute for build level 3.
1.1.5 Laser
TheGBX24usesaClass1laserinitsprovisionofFiberports.
WARNING
Class 1 laser product. Invisible laser radiation may be emitted from the connector aperture when no
fiber cable is fitted, avoid exposure by not looking into the open aperture.
1.1.6 Handling
CAUTION
Only handle the board by the edges or front panel.
Figure 1-3 ESD Label (Present on Board Packaging)
1.1.7 Heatsink
CAUTION
Do not remove the heatsink. There are no user-alterable components underneath the heatsink, so
users should have no reason to remove it. Users should not attempt reattachment of the heatsink, as
this requires precise torque on the screws attaching the heatsink to the PCB. Over-tightening the
screws may cause the heatsink to damage components beneath it. Removal and re-attachment of the
heatsink should only be carried out by the factory.
Publication No. GBX24-0HH/2 Unpacking 15
2 • Unpacking
Onreceiptoftheshippingcontainer,ifthereisanyevidenceofphysicaldamage,the
TermsandConditionsofSale(providedwithyourdelivery)giveinformationon
whattodo.Ifyouneedtoreturntheproduct,contactyourlocalGEIPSalesOfficeor
Agent.
Theboardissealedintoanantistaticbagandhousedinapaddedcardboardbox.
Failuretousethecorrectpackagingwhenstoringorshippingtheboardmay
invalidatethewarranty.
2.1 Box Contents Checklist
Figure 2-1 Box Contents
1. GBX24inantistaticpackaging.
2. ManualCD‐ROM(designmayvary).
3. EmbeddedSoftwareLicenseAgreement(GFJ‐353).
16 GBX24 VME 24 Port Gigabit Ethernet Switch Publication No. GBX24-0HH/2
2.2 Identifying Your Board
TheGBX24isidentifiedbylabelsatstrategicpositions.Thesecanbecross‐checked
againsttheAdviceNoteprovidedwithyourdelivery.
Identificationlabels,similartotheexampleshowninFigure2‐2,attachedtothe
shippingboxandtheantistaticbaggiveidenticalinformation:GBX24productcode,
productdescription,equipmentnumberandboardrevision.
Figure 2-2 Product Label (Packaging)
Ontheboardwithintheantistaticbag,thereisanidentifyinglabelsimilartothe
exampleshowninFigure2‐3attachedtothePCB.
Figure 2-3 Product Label (Product)
Onconduction‐cooledversionsoftheboard(buildlevels4and5),thereisalsoa
labelsimilartotheexampleshowninFigure2‐4attachedtothefrontpanel.
Figure 2-4 Product Label (Conduction-cooled Product)
SeetheProductCodeInformationsectioninAppendixAformoredetailsonthe
productcode(GBX24‐xxxxx).
Publication No. GBX24-0HH/2 Configuration 17
3 • Configuration
3.1 Link Configuration
TheGBX24haspush‐onjumpersincludedinthestandardkitofparts;additional
jumpersmaybeobtainedonrequest.Thesearesuitableforlevel1to3lowvibration
applications.
TIP
For Level 4 and 5 products, make links by wire-wrapping between the pin posts and then cover these
wire wrapped links with the same conformal coating as that used on the board. This will provide a
reliable connection under heavy shock and vibration conditions and further prevent oxidation of the
connection due to moisture ingress.
Figure 3-1 Link Positions
Figure3‐1showsstandard2.54mmpitchheadersforgeneraluse.
ThismanualreferstojumpersettingsasInorOut.Meaningsareasfollows:
In=jumperfitted‐
Out=jumpernotfitted‐
3.2 Inspection
TheGBX24isshippedfromthefactorywithnoconfigurationjumpersfitted.
18 GBX24 VME 24 Port Gigabit Ethernet Switch Publication No. GBX24-0HH/2
3.3 Link Descriptions
NOTE
Ordinary operation requires no jumpers to be fitted.
3.3.1 JTAG Mode Select (J12)
ThislinkcanbeusedtoselecttheJTAGmode,asfollows:
Table 3-1 J12 Functionality
Setting Meaning
Pins 1 and pin 2 linked Reserved
Pins 2 and pin 3 linked PLD programming via J13 header
No jumper fitted JTAG disabled
3.3.2 Board Configuration (J15)
ThisheaderreplicatesfunctionalityavailableattheP2connector.
Table 3-2 J15 Functionality
Pins Function Description
1 and 2 Reserved
3 and 4 BIT Fast Start Fitting a jumper forces the GBX24 to start quickly by bypassing BIT
5 and 6 Recovery Fitting a jumper enables reprogramming of the board
7 and 8 Reset Fitting a jumper enables a Reset to be applied to the board remotely without
affecting any other boards in the system
9 and 10 Slave When the GBX24 is used in a two-board configuration as a 48-port switch, this
selects whether the board is the Master (jumper fitted) or Slave (no jumper fitted)
11 and 12 Reserved
CAUTION
The link settings on pins 3 & 4, 5 & 6 and 9 & 10 are only sampled during power-up/reset. Do not
change the link setting while the board is powered.
Publication No. GBX24-0HH/2 Installation and Power Up 19
4 • Installation and Power Up
ReviewtheSafetyNoticessectionbeforeinstallingtheboard.Thefollowingnotices
alsoapply:
CAUTION
Consult the enclosure documentation to ensure that the board’s power requirements are compatible
with those supplied by the backplane.
TheGBX24mayrequireupto9Afroma5VpowersupplywithinVMEbus
Specificationlimits(+5V+5%‐2.5%).The±12Vsupplylines(VMEbus±12V+5%
‐2.5%)arenotused.
CAUTION
Do not operate the GBX24 on an extender card. The GBX24 paddle card uses differential pair
impedance matched tracking that is not found on typical extender cards.
4.1 Board Installation Notes
1. Air‐cooledversionsoftheGBX24haveaninjector/ejectorhandletoensurethat
thebackplaneconnectorsmateproperlywiththebackplane.Thecaptivescrews
atthetopandbottomofthefrontpanelallowtheboardtobetightlysecuredin
position,whichprovidescontinuitywiththechassisgroundofthesystemand
preventsinadvertentlydisconnection.
2. Conduction‐cooledversionsoftheGBX24havescrew‐drivenwedgelocksatthe
topandbottomoftheboardtoprovidethenecessarymechanical/thermal
interface.Correctadjustmentrequiresacalibratedtorquewrenchwitha
hexagonalheadofsize3/32”(2.38mm),settobetween0.6and0.8Nm.
3. Inanair‐cooleddevelopmentenclosure,whentakingI/Oconnectionsfromthe
backplaneconnectors,useofGEIPI/Omodules(orsomeequivalentsystem)
ensuresoptimumoperationwithregardtoEMI.
20 GBX24 VME 24 Port Gigabit Ethernet Switch Publication No. GBX24-0HH/2
4.2 Connecting to GBX24
TheGBX24isfactoryconfiguredtoprovideGigabitEthernetswitchingstraightout
ofthebox.AswithotherEthernetdevices,connectionscanbemadeandbrokenas
requiredwhilethesystemisoperational.Fullsoftwareconfigurationispossible;
howeverthisisnotnecessaryforprovinginitialoperation.
NOTE
Full functionality is only possible after the GBX24 has been fully booted-up.
Apartfromprovidingswitchports,theGBX24alsohastwoCOMportsfordirect
switchaccess,andanout‐of‐bandEthernetserviceport.
4.2.1 Serial Connection to a Terminal/HyperTerminal (COM1/2)
TheGBX24hastwoEIA232COMports,bothofwhichareconfiguredasDTE.The
portsareusedforthefollowingpurposes:
COM1ManagementSoftwareCommandLineinterfaceandBITinterface.
COM2BITfailinterface(notrequiredduringnormaloperation).
Theportsareconfiguredto9600baud,8bits/character,1stopbitandnoparity,
whichshouldbereflectedintheterminal/terminalemulationsoftware,togetherwith
VT100modeandflowcontroloff.SincetheCOMportsareTx/Rxonly,any
handshakingoptionsshouldalsobeturnedoff.COM1/COM2areavailableonP2
(viatheGBX24PIO),P25(onbuildlevels1to3only)andJ16.
4.2.2 Out-of-band Ethernet Service Port (MNG)
ThisFastEthernet(full/halfduplex10/100BaseT)interfaceiswiredforMDI
connectionandsowillconnecttoaswitch(MDIX)usingastraightthroughcable.If
directconnectiontoaPCisrequired,thenastandardEthernetcross‐overpatchcable
isrequired.
TheMNGport,whichisavailableonP2(viatheGBX24PIO)andJ10,providesan
out‐of‐bandconnectiontothemanagementsoftware’sWebinterfaceortelnet
interface.Thisserviceportcanbeconfiguredasawebinterface,orusedtoperform
softwareupgradesorremoteterminalaccessusingthetelnetport(seeRFC854to
859).ConfigurationoftheserviceportisdescribedintheGettingStartedwiththe
SwitchManagementSoftwareapplicationnote.
LINK
Getting Started with the Switch Management Software Application Note, publication number
SWMANSW-AN1.
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