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3Com DUA1770-0AAA04 manual LED behavior, Color, Indicates, Port Status LEDs, Module Status LEDs

Models: DUA1770-0AAA04

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Switch — Front View Detail 17

LEDs Table 4 lists LEDs visible on the front of the Switch, and how to read their status according to color. For information on using the LEDs for problem solving, see “Checking for Correct Operation of LEDs” on page 26.

Table 4 LED behavior

LED	Color	Indicates

Port Status LEDs
Packet	Yellow	Packets are being transmitted/received on the port.
	Off	No packets are being transmitted/received on the port.
Status	Green	A high speed (1000 Mbps) link is present, and the port
		is enabled.
	Green flashing	A high speed (1000 Mbps) link is present, but the port
		is disabled.
	Yellow	A low speed (100 Mbps on 4900, 10/100 Mbps on
		4924/4950) link is present, and the port is enabled.
		(Not applicable on 4900 SX.)
	Yellow flashing	A low speed (100 Mbps on 4900, 10/100 Mbps on
		4924/4950) link is present, but the port is disabled.
		(Not applicable on 4900 SX.)
	Off	No link is present.
Module Status LEDs
	Green	The Module is installed and supported. The Link Status
		has been determined for a single port Module.
	Yellow	The Module is installed and supported. The Module
		has multi-ports or there is no Link for a single port
		Module.
	Yellow flashing	The Module is installed but not supported. Note that
		the Switch will continue to operate normally.
	Off	The Module is not installed.
Unit LEDs
1–4	Green	Determines the identity of the Switch when
		interconnected to another Switch to create an XRN
		Distributed Fabric and that a link is present.
	Off	A fault has occurred.
Power/Self Test LED
	Green	The Switch is powered-up and operating normally.
	Green flashing	The Switch is either downloading software or is
		initializing (which includes running a Power On Self
		Test).
	Yellow	The Switch has failed its Power On Self Test.
	Off	The Switch is not receiving power.

Image 17

3Com DUA1770-0AAA04 LED behavior, Color, Indicates, Port Status LEDs, Module Status LEDs, Unit LEDs, Power/Self Test LED

Contents

Switch 4900 3C17700 Switch 4900 SX 3C17702 Switch 4924 3C17701 Switch 4900 Series Getting Started GuideSwitch 4950 3C17706 SuperStackENVIRONMENTAL STATEMENT UNITED STATES GOVERNMENT LEGENDEnd of Life Statement Regulated Materials Statement1 INTRODUCING THE SUPERSTACK 3 SWITCH 4900 SERIES CONTENTS2 INSTALLING THE SWITCH ABOUT THIS GUIDESNMP Management 3 SETTING UP FOR MANAGEMENTChoosing the Correct Fiber Cables SAFETY INFORMATION PROBLEM SOLVINGC TECHNICAL SPECIFICATIONS D TECHNICAL SUPPORT PIN-OUTSPage ABOUT THIS GUIDE Commands ConventionsNotice Icons Table 2 Text ConventionsDocumentation documentation RelatedDocumentation Registration ProductDocumentation CommentsSwitch - Front View Detail 100/1000BASE-T and 10/100/1000BASE-T Ports About the Switches Summary of Hardware Features1000BASE-SX Ports GBIC Ports LEDs Switch - Rear View Detail Unit Information Label Power Socket Redundant Power System Socket12 CHAPTER 1 INTRODUCING THE SUPERSTACK 3 SWITCH 4900 SERIES Table 3 Hardware features Hardware Features SwitchesFigure 1 Switch 4900 - front view Switch - Front View DetailFigure 2 Switch 4900 SX - front view 14 CHAPTER 1 INTRODUCING THE SUPERSTACK 3 SWITCH 4900 SERIESSwitch - Front View Detail Figure 3 Switch 4924 - front view Figure 4 Switch 4950 - front viewPorts cross-over Table 4 LED behavior Power/Self Test LEDColor IndicatesView Detail Switch - RearFigure 5 Switch 4900 - rear view Figure 6 Switch 4900 SX - rear viewPower Socket the Switch units, it is returned to these defaults Default Settingssupported by your Switch Package Contents Choosing a Suitable Site Rack-mounting INSTALLING THE SWITCHThe Power-up Sequence Switch 4950 - GBIC Operation Placing Units On Top of Each Other Creating an XRN Distributed FabricSite Package ContentsChoosing a Suitable Rack-mounting 4 Repeat steps 2 and 3 for the other side of the Switch The maximum number of Switch units that can be interconnected is two Powering-up the The Power-upSwitch SequenceIf there is evidence of a problem, see “Solving Problems Indicated by Fiber Cables Operation Switch 4950 - GBICApproved GBIC TransceiversFiber SC connector Type 4 GBIC with internal EEPROM fitted 3 The transceiver connects to the network using a duplex SC connector. Attach a male duplex SC connector on the network cable into the duplex SC connector on the transceiver 32 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 Upwhole setup process is summarised in Figure 12. Detailed procedural Figure 12 Initial Switch Setup and Management Flow diagramAutomatic 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 IP addressUsing Command Line Interface via Telnet Pre-requisites Figure 14 Example top-level command line interface menuFigure 15 Connecting a workstation to the Switch via the console port You can find pin-out diagrams for both cables in Appendix B on pageConnecting the Workstation to the Switch 42 CHAPTER 3 SETTING UP FOR MANAGEMENT Setting Up the Switch with IP InformationFigure 16 Example top-level command line interface menu Viewing Configured IPAutomatically InformationPre-requisites Connecting the Workstation to the Switch44 CHAPTER 3 SETTING UP FOR MANAGEMENT Viewing IP Information via the Console Port 46 CHAPTER 3 SETTING UP FOR MANAGEMENT Figure 18 Example top-level command line interface menuRefer 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 Webtelnet Choosing a Browserhttp//xxx.xxx.xxx.xxx Over the Network50 CHAPTER 3 SETTING UP FOR MANAGEMENT c\ pingDefault Users and Setting Up SNMPPasswords system management snmp community command - refer to theYou can change the default passwords using either The security device user modify command on the CLI, orThe gettingStarted command on the CLI, or Default UsersSolving Communication Problems Solving Software Upgrade Problems PROBLEM SOLVINGSolving Problems Indicated by LEDs Solving Hardware Problems solutions below Solving ProblemsThe Power LED does not light On powering-up, the Power/Self Test LED lights yellowA fan failure warning message is received ProblemsSolving Hardware Unit fails, no SNMP fan failure message is received Error message indicating that the GBIC transceiver is invalidError message indicating that the GBIC transceiver is faulty IP Addressing Solving Communication ProblemsHow do you obtain a registered IP Address? SAFETY INFORMATION Important Safety Information Important Safety Information 62 APPENDIX A SAFETY INFORMATION L’information de Sécurité Importante AVERTISSEMENT France et Pérou uniquement 3CGBIC91 GBIC SX 3CGBIC92 GBIC LX 3CGBIC97 GBIC LH70 VORSICHT Europe Wichtige SicherheitsinformationenWichtige Sicherheitsinformationen 68 APPENDIX A SAFETY INFORMATION PC-AT Serial Cable B PIN-OUTSRJ-45 Pin Modem CableAssignments Pin assignments are identical for 10/100BASE-T and 1000BASE-T RJ-45Pin Number Table 11 Pin assignments10/100BASE-T 1000BASE-T72 APPENDIX B PIN-OUTS Switch 4900 SX Height 65.8 mm 2.59 in. x Width 440 mm 17.3 in TECHNICAL SPECIFICATIONS413 mm 16.27 in. not including bulge. Weight 6.4 Kg 14.10 lbs 413 mm 16.27 in. not including bulge. Weight 6.91 Kg 15.23 lbsProtocols Used for Administration Power SupplyHeat Dissipation Standards SupportedServices ServicesOnline Technical World Wide Web SiteUsername anonymous Europe, Middle East and Africa Asia, Pacific RimLatin America aprtechnicalsupport@3com.comTelephone Number CountryCountry Telephone NumberReturning Products for Repair Telephone Number CountryCountry Telephone NumberNumbers INDEXPage REGULATORY NOTICES How to Identify and Resolve Radio-TV Interference ProblemsFCC STATEMENT INFORMATION TO THE USER