3Com 3CR16708-91, 3CR16709-91 manual RJ-45 Pin, Assignments, Connectors, Pin Number, 1000BASE-T

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70APPENDIX B: PIN-OUTS

RJ-45 Pin	Pin assignments are identical for 10BASE-T and 100BASE-TX RJ-45
Assignments	connectors.
	Table 11 Pin assignments

Pin Number	10BASE-T/100BASE-TX	1000BASE-T

Ports configured as MDI
1	Transmit Data +	Bidirectional Data A+
2	Transmit Data -	Bidirectional Data A-
3	Receive Data +	Bidirectional Data B+
4	Not assigned	Bidirectional Data C+
5	Not assigned	Bidirectional Data C-
6	Receive Data –	Bidirectional Data B-
7	Not assigned	Bidirectional Data D+
8	Not assigned	Bidirectional Data D-

Table 12 Pin assignments

Pin Number	10BASE-T/100BASE-TX	1000BASE-T

Ports configured as MDIX
1	Receive Data +	Bidirectional Data B+
2	Receive Data -	Bidirectional Data B-
3	Transmit Data +	Bidirectional Data A+
4	Not assigned	Bidirectional Data D+
5	Not assigned	Bidirectional Data D-
6	Transmit Data -	Bidirectional Data A-
7	Not assigned	Bidirectional Data C+
8	Not assigned	Bidirectional Data C-

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Contents 3CR16708-91 3CR16709-91 3Com Corporation Campus Drive Marlborough, MA USA United States Government LegendContents Setting UP for Management Problem Solving OutsPage About this Guide Icon Description ConventionsConvention Description Documentation RelatedDocumentation Comments Pddtechpubscomments@3com.comIntroducing Hardware Features Switch Switch Front View Detail Alert LED Power LED Port Status Leds PoE Status Leds100BASE-FX Port Status LEDs Switch 9 FX only SFP Module Status LED Switch 9 FX onlyColor Indicates 10BASE-T/100BASE-TX Port Status LEDs LED Alert LEDSwitch Rear View Detail Switch 9 rear viewSwitch Rear View Detail Page Default Settings shows the default settings for the Switch Page Installing the Switch Choosing a Suitable Package ContentsSite Air temperature around the Switch does not exceed 50 C 122 F Mounting Wall-mountingUpwards Instructions for Cement WallsInstructions for Wood Walls Make two holes 150 mm 5.9 in. apartPower and Alert LED colors Color StatePower-up Sequence Cross-over Cable Straight-through Cable SFP Operation Installing the Switch Inserting a SFP Transceiver Installing the Switch Setting UP for Management Automatically configured IP information Setting UpConfigure IP information manually for your Switch or view OverviewManual IP Configuration Automatic IP ConfigurationSetting UP for Management Manually Configuring IP Information Pre-requisitesConnecting the Workstation to the Switch Connecting a workstation to the Switch via the console portSetting Up the Switch with IP Information Example top-level command line interface menuViewing Configured IPAutomatically Viewing Automatically Configured IP Information Viewing IP Information via the Console Port Methods of Managing a Switch Refer to Setting Up Command Line Interface Management on Refer to Setting Up Web Interface Management onInterface Management Command LineNetwork Using Telnet CLI Management viaInterface Setting Up WebChoosing a Browser Over the Network Setting Up SnmpManagement Protocol Snmp can manage a Switch if Management workstationDefault Users User Default Name Password Access LevelDefault Users and Passwords Setting UP for Management Problem Solving Solving Problems Indicated by LEDsRefer to the list of suggested solutions below ProblemsSolving Hardware IP Addressing Solving Communication ProblemsHow do you obtain a registered IP Address? Solving Software Upgrade Problems Problem Solving Safety Information Power Cord Set Japan Important Safety Information This must be approved for the country where it is usedImportant Safety Information ’information de Sécurité Importante Schko’information de Sécurité Importante Wichtige Sicherheitsinformationen Vorsicht EuropeInformación de seguridad importante Schuko Dispositivo Láser DE Clase Importanti Informazioni di Sicurezza CSAAvvertenza porte a fibre ottiche Protezione degli occhi Appendix a Safety Information Adapter Cable RJ-45 Pin Signal DB-9 Pin DirectionRJ-45 to RS-232 Panel. The pinout is shown belowAssignments ConnectorsRJ-45 Pin Pin NumberOfficeConnect Managed Switch 9 and Switch 9 FX Standards Supported Protocols Used for AdministrationTerminal Emulation Product ServicesRegister Your PurchaseOnline Access SoftwareTroubleshoot DownloadsContact Us Latin America Telephone Technical Support and Repair Country Telephone NumberUS and Canada Telephone Technical Support and Repair Index Snmp Regulatory Notices