Color Indicates Module LEDs, Unit LED, Fault LED | 3Com 3CR17450-91

14CHAPTER 1: INTRODUCING THE SUPERSTACK 3 SWITCH 3870

LED	Color	Indicates

Module LEDs
Packet	Yellow	Packets are being transmitted/received on the port.
	Off	No packets are being transmitted/received on the port.
Status	Green	The Module is installed and supported and the Link
		Status has been determined.
	Yellow	The Module is installed and supported but there is no
		link or an indeterminate link status.
	Yellow flashing	The Module is installed but not supported or has failed
		POST.
	Off	The Module is not installed.
Unit LED
	Green	The Switch is stacked and the position within the stack
		is displayed.
	Off	The Switch is not stacked.
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 is faulty.
	Off	The Switch is not receiving power or there is a fault
		with the Power Supply unit.
Fault LED
	Red	The Switch and/or the PSU and/or the Module are
		above critical temperature but below critical shut down
		temperature. Fans are operating normally.
	Off	The Switch, PSU and the Module are below critical
		temperature. One or more fans have failed.

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3Com 3CR17450-91, 3CR17451-91 manual Color Indicates Module LEDs, Unit LED, Power/Self Test LED, Fault LED

Contents

SuperStack 3 Switch 3870 Family Getting Started Guide 3Com Corporation Campus Drive Marlborough MA USA United States Government Legend Contents Setting UP for Management PIN-OUTS Page About this Guide Icon Description ConventionsConvention Description Documentation RelatedDocumentation documentation To access the online documentation from the CD-ROM Comments Switch 3870 Hardware Features Switch Switch Front View Detail 1000BASE-T Ports Stacking Status LED Color Indicates Port Status/Packet LEDsStack Master LED Power/Self Test LED Fault LEDColor Indicates Module LEDs Unit LED View Detail Feature Switch Port Status Duplex ModeType of Unit Total Units in the Stack Maximum Modules Port Port Speed Default Settings Introducing the Superstack 3 Switch Installing the Switch Choosing a Suitable Package ContentsSite Power lines and fluorescent lighting fixtures To rack-mount your SwitchSwitch, as shown in Figure Rack-mounting Repeat steps 2 and 3 for the other side of the Switch Fitting a bracket for rack-mounting Power-up Powered-up and ready for operationSwitch Sequence Power System output Cross-over Cable Straight-through Cable SFP Operation Remove the plastic protective cover if fitted Transceiver Your SwitchRemoving an SFP Installing the Switch Setting UP for Management Setting Up Overview Manual IP Configuration Automatic IP Configuration Setting UP for Management Manually Configuring IP Information Pre-requisites Connecting the Workstation to the Switch Setting Up the Switch with IP Information Example top-level command line interface menu Viewing Configured IPAutomatically Viewing Automatically Configured IP Information Viewing IP Information via the Console Port Refer to Setting Up Command Line Interface Management on Command Line Interface ManagementWeb Interface Management Network Using Telnet Where xxx.xxx.xxx.xxx is the IP address of the Switch Setting Up Web InterfaceChoosing a Browser Over the Network Default Users Setting Up SnmpPasswords User Default Access Level Name Password Security Device User Modify operation on the web interface Problem Solving Solving Problems Power/Self Test LED does not lightOn powering-up, the Power/Self Test LED remains yellow Indicated by LEDs Problems Refer to the list of suggested solutions belowSolving Hardware Port Status LED is flashing green/yellow Fan failure warning message is received Unit fails or Snmp thermal shutdown trap is received Error message indicating that the SFP transceiver is faulty Solving Communication ProblemsIP Addressing How 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 used Important Safety Information ’information de Sécurité Importante Class ’information de Sécurité Importante Dispositif Laser De Classe Wichtige Sicherheitsinformationen Vorsicht Europe Información de seguridad importante Laser Gerät der Klasse Schuko Appendix a Safety Information Importanti Informazioni di Sicurezza CSA Solo Regno Ważne informacje o zabezpieczeniach Appendix a Safety Information Laser Produkt Klasa Appendix a Safety Information Null Modem Cable RJ-45 to RS-232 25-pin PC-AT Serial CableRJ-45 to 9-pin Modem Cable RJ-45 Pin AssignmentsRJ-45 to RS-232 25-pin Pin Number 10/100 1000 Pin Number 10/100 1000 Appendix B PIN-OUTS Switch 3870 24 Port Switch 3870 48 Port Product to Gain Service Benefits ServicesRegister Your Purchase Access Software DownloadsContact Us Telephone Technical Australia 800 678 Philippines US and Canada Telephone Technical Support and Repair Index SFP Page Chapter Index Regulatory Notices