Pin Number 10/100BASE-T 1000BASE-T | 3Com DUA1770-0AAA04 instruction

RJ-45 Pin Assignments 71

Table 11 Pin assignments

Pin Number	10/100BASE-T	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-

Image 71

3Com DUA1770-0AAA04 manual Pin Number 10/100BASE-T 1000BASE-T

Contents

SuperStack 3Com Corporation 5400 Bayfront Plaza Santa Clara, California Contents Setting UP for Management PIN-OUTS Page About this Guide Convention Description ConventionsIcon Description Documentation documentation RelatedDocumentation Directory as a whole to maintain the structure of the files Please include the following information when commentingSuperStack 3 Switch 4900 Series Getting Started Guide 3Com recommends that you copy the Docs/referenceguide Introducing Introducing the Superstack 3 Switch 4900 Series Hardware Features Switches Switch 4900 front view Switch Front View Detail Switch 4924 front view Ports cross-over Unit LEDs Power/Self Test LEDColor Indicates Port Status LEDs Module Status LEDs Switch 4900 rear view Switch Rear Switch 4924 rear view Power Socket Switch units, it is returned to these defaults Default SettingsSupported by your Switch Installing the Switch Site Package ContentsChoosing a Suitable Have been fitted Flow through the side panels of the SwitchRack-mounting Desk, or attach it to a wall Fitting a bracket for rack-mounting Repeat steps 2 and 3 for the other side of the Switch Interconnecting two Switch 4900 units Sequence Power-upPowering-up Switch Power System output Options RJ-45 connector is now a grounded portThat contain alignment pins can cause damage to your Switch Your Switch Transceivers Switch 4950 GbicOperation Approved Gbic Inserting a Gbic Transceiver into a Switch Fiber SC connector Type 4 Gbic with internal Eeprom fitted Switch 4950 Gbic Operation Installing the Switch Setting UP for Management Overview Setting Up Automatic IP Configuration Manual IP Configuration Setting UP for Management Pre-requisites Manually Configuring IP Information Setting Up the Switch with IP Information Connecting the Workstation to the SwitchConfiguring the Workstation with IP Information Using Command Line Interface via Telnet Example top-level command line interface menu 19,200 baud Data bits Connecting a workstation to the Switch via the console port Setting Up the Switch with IP Information Automatically Configured IPViewing Pre-requisites Viewing IP Information via the Console Port Example top-level command line interface menu Refer to Setting Up Command Line Interface Management on CLI Management via Command LineNetwork Using Telnet Interface Management Choosing a Browser Setting Up WebInterface Http//xxx.xxx.xxx.xxx Over the Network Passwords Setting Up SnmpDefault Users Security Device User Modify operation on the web interface User Default Name Password Access Level For Technical Support information, see Appendix D Problem Solving On powering-up, the Power/Self Test LED lights yellow Solving ProblemsSolutions below Power LED does not light For further information about RMON, refer to Status ProblemsSolving Hardware Fan failure warning message is received Unit fails, no Snmp fan failure message is received Error message indicating that the Gbic transceiver is faulty IP Addressing Solving Communication Problems How do you obtain a registered IP Address? Safety Information This must be approved for the country where it is used Important Safety Information Important Safety Information 3CGBIC91 Gbic SX 3CGBIC92 Gbic LX Schko ’information de Sécurité Importante Appendix a Safety Information 3CGBIC91 Gbic SX 3CGBIC92 Gbic LX Der Netzstecker muß die Norm CEE 7/7 erfüllen Schuko Wichtige Sicherheitsinformationen Wichtige Sicherheitsinformationen Appendix a Safety Information Pin to 9-pin PC-AT Serial CableNull Modem Cable 9-pin to RS-232 25-pin Assignments ConnectorsModem Cable RJ-45 Pin Pin Number 10/100BASE-T 1000BASE-T Appendix B PIN-OUTS Same unless otherwise stated Physical DimensionsSafety Power Consumption Standards Supported Power SupplyProtocols Used for Administration Heat Dissipation Online Technical Services Username anonymous From this region, enter the URL Asia, Pacific RimFrom this region, email Europe, Middle East and Africa Europe, Middle East and Africa Asia, Pacific Rim Country Telephone Number Asia, Pacific Rim Country Telephone Number Latin America Numbers Index Passwords Regulatory Notices