Manuals / 3Com / Computer Equipment / Switch

3Com C17302 LEDs” on page, If there is evidence of a problem, see “Solving Problems Indicated by

Models: C17304 C17302 3C17300

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If there is evidence of a problem, see “Solving Problems Indicated by

The Power-up Sequence 25

Table 6 Power/Self Test LED colors

Color	State

Green	The Switch is powered-up and operating normally.
Yellow	The Switch has failed its Power On Self Test.
Off	The Switch is not receiving power.

In addition, check the Unit LEDs on all Switches in the stack. If a Unit LED is off, initialization is not complete. 3Com recommends that you do not use the Switch's management interface until the Unit LED is green.

If there is evidence of a problem, see “Solving Problems Indicated by

LEDs” on page 54.

Connecting a You can connect a SuperStack Advanced Redundant Power System Redundant Power (3C16071, 3C16071A or 3C16071B) to the Switch. This unit, which is

System also known as an RPS, is designed to maintain the power to your Switch if a power supply failure occurs.

For normal redundancy, the unit requires one Type 2A Power Module (part number 3C16074A). For full redundancy, the unit requires two type 2A Power Modules combined using a Type 2 Y-Cable (part number 3C16078).

CAUTION: The Switch has no ON/OFF switch; the only method of connecting or disconnecting mains power is by connecting or disconnecting the power cord.

CAUTION: The Switch can only use a SuperStack Advanced Redundant

Power System output.

Choosing the Correct All of the ports on the front of the Switch 4200 Series are Auto-MDIX, Cables that is they have a cross-over capability. The port can automatically detect

whether it needs to operate in MDI or MDIX mode. Therefore you can make a connection to a port with a straight-through (MDI) or a cross-over cable (MDIX).

The Auto-MDIX feature only operates when auto-negotiation is enabled.

If auto-negotiation is disabled, all the Switch ports are configured as

MDIX (cross-over). If you want to make a connection to another MDIX

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3Com C17302, 3C17300, C17304 manual LEDs” on page, If there is evidence of a problem, see “Solving Problems Indicated by

Contents

SuperStack Switch 4200 Series Getting Started GuideUNITED STATES GOVERNMENT LEGEND 3Com Corporation 5400 Bayfront Plaza Santa Clara, CaliforniaEnvironmental Statement 1 INTRODUCING THE SUPERSTACK 3 SWITCH 4200 SERIES CONTENTS2 INSTALLING THE SWITCH ABOUT THIS GUIDE4 PROBLEM SOLVING 3 SETTING UP FOR MANAGEMENTChanging Default Passwords SNMP ManagementC TECHNICAL SPECIFICATIONS SAFETY INFORMATIONPIN-OUTS D TECHNICAL SUPPORTINDEX REGULATORY NOTICES ABOUT THIS GUIDE Commands ConventionsIcon Notice TypeDocumentation RelatedProduct pddtechpubscomments@3com.comRegistration DocumentationAbout the Switch 4200 Series Switch 4200 Series - Front View Detail SUPERSTACK 3 SWITCHSwitch 4200 Series - Rear View Detail Default Settings INTRODUCING THE4200 Series About the SwitchFeature Switch 4200 SeriesFront View Detail Switch 4200 SeriesFigure 1 Switch 4226T 3C17300 - front view Power / Self Test LEDGBIC Ports This section applies to the SuperStack 3 Switch 4228G only 1000BaseT GBICs Fiber GBICsColor IndicatesColor Power/Self Test LEDIndicates Unit LEDsRear View Detail System RPS. See “Connecting a Redundant Power System” on pageSwitch 4200 Series Figure 4 Switch 4200 Series - rear viewIP Address Subnet Mask Default Router Package Contents Choosing a Suitable Site Rack-mounting INSTALLING THE SWITCHPlacing Units On Top of Each Other The Power-up Sequence GBIC OperationChoosing a Suitable Package ContentsSite Rack-mounting 3 Insert the two screws and tighten with a suitable screwdriver Stacking Units Powering-up the The Power-upSwitch 4200 Series SequenceIf there is evidence of a problem, see “Solving Problems Indicated by LEDs” on pageChoosing the correct Choose from the following cable options Fiber cablesThe 1000BASE-SX ports can be connected to multimode fiber cables only Transceivers GBIC Operation28 CHAPTER 2 INSTALLING THE SWITCH GBIC Ports Figure 7 Inserting a GBIC TransceiverGBIC Transceiver 30 CHAPTER 2 INSTALLING THE SWITCH Setting Up Overview Manually Configuring IP Information SETTING UP FOR MANAGEMENTViewing Automatically Configured IP Information Methods of Managing a SwitchOverview Setting Upset up and ready for management when it is in its default state. The Configure IP information manually for your Switch or view theAutomatic IP Configuration Manual IP ConfigurationYou should use the automatic IP configuration method if on pagePre-requisites Manually Configuring IP InformationConfiguring the Workstation with IP Information Connecting the Workstation to the SwitchSetting Up the Switch with IP Information Using the Web InterfaceUsing Command Line Interface via Telnet Figure 10 Example top-level command line interface menu Connecting the Workstation to the Switch You can find pin-out diagrams for both cables in Appendix B on pageFigure 11 Connecting a workstation to the Switch via the console port Pre-requisites19,200 baud 8 data bits no parity 1 stop bit no hardware flow control Setting Up the Switch with IP InformationFigure 12 Example top-level command line interface menu Viewing Configured IPAutomatically InformationViewing Automatically Configured IP Information Connecting the Workstation to the SwitchFigure 14 Example top-level command line interface menu Viewing IP Information via the Console PortMethods of Managing a Switch Refer to “Setting Up Web Interface Management” on page Refer to “Setting Up Command Line Interface Management” on pageRefer to “Setting Up SNMP Management” on page Command Lineusing Telnet Interfacedescribed in “Setting Up Overview” on page Setting Up WebChoosing a Browser InterfaceOver the Network Setting Up SNMPthe CD-ROM that accompanies your Switch to provide SNMP management for your Switch. If you use 3Com Network Supervisor itThe security device user modify command on the CLI, or The Security Device User Modify operation on the web interface Default Users and Passwords52 CHAPTER 3 SETTING UP FOR MANAGEMENT Solving Problems Indicated by LEDs Solving Hardware Problems PROBLEM SOLVINGSolving Communication Problems Solving Software Upgrade Problems solutions below Solving ProblemsThe Power LED does not light On powering-up, the Power/Self Test LED lights yellowSolving Communication Problems ProblemsError message indicating that the GBIC transceiver is invalid Error message indicating that the GBIC transceiver is faultyFormation Solving StackHow do you obtain a registered IP Address? ProblemsIf you have problems with your software upgrade, refer to the Problem 58 CHAPTER 4 PROBLEM SOLVING SAFETY INFORMATION Important Safety Information Important Safety Information L’information de Sécurité Importante AVERTISSEMENT Cordon électrique Wichtige Sicherheitsinformationen VORSICHT Europe VORSICHT Faseroptikanschlüsse - Optische Sicherheit Null Modem Cable B PIN-OUTSPC-AT Serial Cable RJ-45 Pin Modem CableAssignments Signal1000BASE-T RJ-45 RJ-45 connectorsPin Assignments SignalTable 13 Pin assignments SignalPin Number FunctionSwitch 4226T 3C17300 TECHNICAL SPECIFICATIONSPhysical Dimensions Safety72 APPENDIX C TECHNICAL SPECIFICATIONS Protocols Used for AdministrationStandards Supported Terminal EmulationPhysical Dimensions Switch 4250T 3C17302Safety Power SupplyPhysical Dimensions Switch 4228G 3C17304Safety Power SupplyOnline Technical Services3Com. These services can enhance warranty response times. They can 7 days a week, advance shipment of replacement hardware, and on-siteUsername anonymous Europe, Middle East and Africa Asia, Pacific RimLatin America aprtechnicalsupport@3com.comCountry Asia, Pacific RimTelephone Number CountryReturning Products for Repair Telephone Number CountryCountry Telephone NumberINDEX Page REGULATORY NOTICES How to Identify and Resolve Radio-TV Interference ProblemsFCC STATEMENT INFORMATION TO THE USER