3Com 4210 26-PORT, 4210 PWR 18-PORT, 4210 9-PORT, 4210 PWR 26-PORT Important Safety Information

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D	REDUNDANT POWER SUPPLY
	SAFETY INFORMATION

Important Safety Information

WARNING: This device has more than one power input. Disconnect all power inputs to power off this device.

WARNING: The installation of the Redundant Power Supply (RPS) should only be carried out by properly trained and qualified personnel.

WARNING: These instructions must be read in conjunction with the RPS flyer and the safety and installation instructions supplied with your RPS.

WARNING: When powering any Switch 4210 from an RPS, the unit must be earthed (grounded). This can be achieved by either connecting the power cord to the unit or by connecting the earth terminal on the rear of the unit to a reliable electrical earth, or by connecting both. It must be ensured that the earth connection is made before connecting the DC supply from the RPS.

WARNING: Any RPS must be approved as an unearthed SELV output in accordance with IEC 60950-1/UL 60950-1/EN 60950-1.

WARNING: RPS Manufacturers’ recommendations must be followed when connecting the cable to the RPS.

WARNING: Ensure that the circuit breaker in the RPS is in the open (off) position when connecting the cable to the RPS.

WARNING: You must ensure that the positive terminal on the Switch is connected to the positive (common) terminal of the RPS and that the negative terminal on the Switch is connected to the negative (circuit breaker) terminal of the RPS.

WARNING: Ensure that the circuit breaker in the RPS is in the open (off) position when connecting the RPS cable and connector to the Switch.

WARNING: Do not use a standard 'positive-earthed' -48V redundant power system suitable for use with telecommunications equipment with the 3Com Power-over-Ethernet (PoE) network switches. In order to meet the IEEE 802.3af (PoE) specification, the -48V output must be isolated from earth (ground) and meet the isolation requirements in that specification.

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Contents 3Com Switch 4210 Family United States Government Legend 3Com Corporation Campus Drive Marlborough, MA USAContents Regulatory Notices Obtaining Support for Your 3COM ProductsAbout this Guide Related Documentation Overview Wire-speed Layer 2 switchingDescription of their features Product IntroductionSwitch 4210 9-port PWR Front panel Introduction to Switch 4210 Family PWR SwitchesCooling system Power systemRear panel Side panelFront panel of a Switch 4210 18-port PWR Shows the front panel of the Switch 4210 26-port PWR model AC input Switch 4210 26-port PWR units support AC input or DC inputDC input-Rated voltage range -52 VDC to -56 VDC Mbps Uplink Port Status LED Power LEDFront Panel LEDs 10/100BASE-TX Autosensing Ethernet Port Status LEDPanel Status Introduction to the Switch 4210 Family Non-PWR ModelsThis section describes each Switch 4210 Family model Switch 4210 9-port Front panelSwitch 4210 18-port Front panel Switch 4210 cools off naturallySwitch 4210 18-port model’s rear panel Switch 4210 26-port Front panelSwitch 4210 26-port rear panel Switch 4210 52-port Front PanelDescribes the 10/100Base-TX autosensing port’s Link/Act LED Port LEDDescribes the Speed LED on the 10/100Base-TX port Technical specifications for the Switch Technical SpecificationsSwitch Model Port PWR Earthing Lead Technical specifications for the Switch 4210 PWR modelsSupported for SwitchSFP modules supported by the Switch SFP ModulesProduct Introduction Installing the Switch Installing the Switch Mount the front bracket to the device Screw Front Installing the switch in a 19-inch rackInstallation completed 4210 Power-upSequence Ready for operationPWR LED Colors Connecting aRedundant Power Supply 52 for a list of suggested solutionsSystem Redundancy +1 Rectifier Power AvailabilitySwitch 4210 Circuit Breaker and Cable Ratings Rectifiers No RectifierRPS Connection to the Switch Using Power over EthernetTerminal, as shown in Figure ConnectingRJ-45 Signal Direction DB9 console Console CableGND RXD DSR CTS Installing the Switch Managing Your Switch User View Methods of Managing a SwitchSystem View Need to Setting Up YourRefer to Setting Up Snmp Management on Configured IP informationSnmp Configuring IP ManuallyAutomatically Configuring the IP Address using Dhcp Information Configured IPViewing AutomaticallyUser View Login Connecting the Workstation to the Switch Manually Configuring IP InformationConnecting to Console Port You can manually configure the switch IP information byOnce you have logged in you are automatically in User View Setting Up the Switch with IP InformationPrerequisites Using the Web Interface Enter the system-viewcommand and Enter Using Command Line Interface using TelnetNetwork Telnet Where xxx.xxx.xxx.xxx is the IP address of the switchManagement Console Port ConnectionLine Interface Setting Up CommandManagement using Setting Up WebString to be removed Setting Up SnmpString is private New community string up to 32 charactersUser Default Name Password Access Level Default UsersPasswords Default UsersProblem Solving Indicated by LEDs Solving ProblemsSolving Hardware ProblemsHow do you obtain a registered IP Address? Solving Communication ProblemsError message indicating that the SFP transceiver is faulty IP AddressingSolving Fabric Formation ProblemsProblem Solving RJ-45 to RS-232 25-pin PIN-OUTSNull Modem Cable PC-AT Serial Cable10/100 and 1000BASE-T RJ-45 connections Ethernet Port RJ-45 Pin AssignmentsPin assignments Obtaining Support for Your 3COM Products Support and Repair Available for purchase from your 3Com resellerContact Us Telephone TechnicalCountry Telephone Number US and Canada Telephone Technical Support and Repair Latin America Telephone Technical Support and RepairDirector 3COM Network Management3Com Network SupervisorAppendix C 3COM Network Management HP OpenView 3Com EnterpriseManagement Suite Integration Kit withAppendix C 3COM Network Management Important Safety Information Safety InformationWichtige Sicherheitsinformationen ’information de Sécurité ImportanteInformación de Seguridad Importante Appendix D Redundant Power Supply Safety Information Importanti Informazioni di Sicurezza Ważne informacje o zabezpieczeniachAppendix D Redundant Power Supply Safety Information Regulatory Notices How to identify and resolve radio-TV interference problemsAppendix D Redundant Power Supply Safety Information