Nortel Networks 8100 manual MDI and MDI-X Connections, Figure A-1. MDI-X to MDI Cable Connections

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Using the Passport 8100 Modules

MDI and MDI-X Connections

For communication to take place between two devices, the transmitter of one device must connect to the receiver of the other device. The connection must be achieved through a crossover function, which could be a crossover cable or a port that implements the crossover function internally.

The Passport 8100 modules use MDI-X ports that allow you to connect directly to end stations without using crossover cables (Figure A-1). Ports that implement the crossover function internally are known as MDI-X ports (where “X” refers to the crossover function).

Passport 8000 switch
1	8
	1	RX+
T	2	RX-
	2	RX-
	3	TX+
	4
R	5
	5
	6	TX-
	7
	8
MDI-X port

8	1	8	1
	1		1
	2		2
	3		3
	4		4
	5		5
	6		6
	7		7
	8		8
	Straight-through cable

	End station
1	8
TX+	1	T
		T
TX-	2
RX+	3
	4	R
		R
	5
RX-	6
	7
	8
MDI port
		617EF

Figure A-1. MDI-X to MDI Cable Connections

A-12

204515-C

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Contents Using the Passport 8100 Modules EN 55 022 Statement EC Declaration of ConformityVoluntary Control Council for Interference Vcci Statement Bureau of Standards, Metrology and Inspection Bsmi Statement204515-C 204515-C 204515-C Contents Chapter Installing a Passport 8100 Module Appendix a Technical Specifications Appendix C Media Dependent Adapters Figures Figure C-1 BASE-SX Shortwave Gigabit MDA Front Panels Tables Xiv Preface Before You BeginText Conventions Italic textRelated Publications Xviii How to Get Help Technical Solutions Center Telephone NumberPage Chapter About the Passport 8100 Modules Features About the Passport 8100 Modules Passport 8190SM Switch Management Module Passport 8190SM Management ModuleEthernet Management Port Serial Ports DTE/DCE SwitchReset Button Pcmcia Card SlotLEDs LEDs on the Passport 8190SM Module10BASE-T/100BASE-TX Port Connectors Passport 8132TX 32-Port I/O ModuleMDA Slot Comm PortLEDs on the Passport 8132TX Module Passport 8148TX Edge Switch Module Passport 8148TX 48-Port I/O ModulePassport 8108GBIC 8-Port I/O Module LEDs on the Passport 8148TX ModuleRedundancy Features Passport 8108GBIC ModuleRedundant Power Supplies Redundant Passport 8190SM ModulesPower Supply Hot-Swapping Chassis Number Hot-Swap One? Modules Power SuppliesCombining Passport 8100 and Passport 8600 Modules Chapter Installing a Passport 8100 Module Chassis Configuration Requirements Safety and Environmental PrecautionsInstalling a Module Removing a Filler PanelSlide the module into the slot Figure Turning On the Chassis Power Securing the Module in the ChassisConnecting Cables Replacing Modules Routing Network CablesTo replace a module Chapter Basic Switch Configuration Specifying Port Numbers Port Numbers on High-Density ModulesBooting the Switch Logging On to the System Access Levels and Default Login ValuesAccess Level Description Default Login Password Setting System Identification Assigning an IP Address to the Management PortSetting System Security Change CLI users and passwords using the following commandsChange Web passwords using the command Switch Configuration To assign an IP address for management, use the commandSpecify a default gateway address/default route Page Chapter Troubleshooting Normal Power-Up SequenceFailure of Management Software to Recognize I/O Modules Failure to Get a Login Prompt from the Console PortLED Indications of Problems LED Indications of Problems Symptom Probable Cause Corrective ActionPort Connection Problems CablingAutonegotiation Modes Use the CLI to disable autonegotiation for the suspect port Port InterfaceInstallation-Related Issues AddressesPage Standards Supported Appendix a Technical SpecificationsGeneral Specifications Safety Agency Approvals Environmental SpecificationsPerformance Specifications 64-byte packets Data Rate and EncodingPassport 8190SM Switch Management Module Console Serial Port Connector Pin Number SignalManagement Port Modem Serial Port Table A-3 DTE-to-DCE Pin AssignmentsCable Specifications Data Port ConnectorsConnector Type Passport 8132TX Module450-1SR MDA, 450-1SX MDA Comm Port ConnectorMDAs 450-1LR MDA, 450-1LX MDATable A-5. Passport 8148TX Port Pinouts Port ConnectorsPassport 8148TX Module Passport 8108GBIC Module GBICsOptical Specifications 1000BASE-SX Gbic1000BASE-XD Gbic MDI and MDI-X Connections Figure A-1. MDI-X to MDI Cable ConnectionsDeclaration of Conformity Figure A-2. MDI-X to MDI-X Cable ConnectionsPage Appendix B LEDs Figure B-1. LEDs on the Passport 8190SM ModuleTable B-1 LED Operation on the Passport 8190SM Module Label Color/State MeaningPassport 8132TX and 8148TX I/O Modules Figure B-2. LEDs on the Passport 8132TX and 8148TX ModulesLED Color/State MeaningTable B-5 Port LEDs on the Passport 8108GBIC Module Page Appendix C Media Dependent Adapters Series MDAs Figure C-1 BASE-SX Shortwave Gigabit MDA Front PanelsTable C-1 1000BASE-SX MDA LEDs Label Type Color/State Meaning8100-4TX MDA Table C-2 1000BASE-LX MDA LEDsSeries Fiber MDAs Table C-3 8100-4TX MDA LEDsFigure C-4 Series MDA Front Panels Table C-4 Series MDA LEDsInstalling an MDA Figure C-5. Installing an MDAUsing the Passport 8100 Modules Appendix D Installing GBICs Figure D-1. Types of GBICsInstalling a Gbic Figure D-2. Installing a GbicTo remove an installed Gbic Page Appendix E RFCs and Standards Page Index NumbersIndex-2 Index-3 Index-4