3Com 4210 26-PORT Connecting, Console Cable, Terminal, as shown in Figure, Console cable pinouts

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32CHAPTER 2: INSTALLING THE SWITCH

power required to the device, providing that the total power budget for the switch is not exceeded.

A PoE switch combines the functionality of a standard Ethernet switch with a single power supply that can power multiple devices. Using a PoE switch has the following advantages over an non-powered network.

■Reduced Cabling — a PoE (802.3af) compliant device that has its power supplied over its Ethernet cable does not require a separate power supply. If, for example, you use the switch to connect a 3Com 11 Mbps Wireless LAN Access Point 8500 to the network, then only a network cable is required to provide both power and network connectivity.

■Increased Reliability — a device powered by a PoE switch can take advantage of the facilities available to the switch. You can fit the switch with a redundant power supply or uninterruptible power supply to increase its uptime.

The switch supports resistor detection according to IEEE 802.3af and pre-standard detection methods.

The Switch 4210 supports 3Com 802.3af equipment. For the latest list of supported devices, refer to the product page on the 3Com web site at http://www.3com.com/

For additional information on Power over Ethernet, refer to the Power over Ethernet Configuration chapter in the Configuration Guide available on the 3Com Web site. Power over Ethernet management is available using the web interface or the command line interface (CLI).

Connecting the	A Console cable is an 8-core cable. One end of the cable is a crimped RJ-45
Console Cable	connector for the connection to the Console port of the switch, and the other end
	is a DB-9 female connector for the connection to the serial port on the Console
	terminal, as shown in Figure 24.
	Figure 24 Console cable

Table 16 Console cable pinouts

RJ-45	Signal	Direction	DB9 (console)

1	RTS

2	DTR

3

TXD

—>

2

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Contents 3Com Switch 4210 Family 3Com Corporation Campus Drive Marlborough, MA USA United States Government LegendContents Obtaining Support for Your 3COM Products Regulatory NoticesAbout this Guide Related Documentation Wire-speed Layer 2 switching Description of their featuresProduct Introduction OverviewIntroduction to Switch 4210 Family PWR Switches Switch 4210 9-port PWR Front panelPower system Rear panelSide panel Cooling systemFront panel of a Switch 4210 18-port PWR Shows the front panel of the Switch 4210 26-port PWR model DC input-Rated voltage range -52 VDC to -56 VDC Switch 4210 26-port PWR units support AC input or DC inputAC input Power LED Front Panel LEDs10/100BASE-TX Autosensing Ethernet Port Status LED Mbps Uplink Port Status LEDIntroduction to the Switch 4210 Family Non-PWR Models This section describes each Switch 4210 Family modelSwitch 4210 9-port Front panel Panel StatusSwitch 4210 cools off naturally Switch 4210 18-port Front panelSwitch 4210 26-port Front panel Switch 4210 18-port model’s rear panelSwitch 4210 52-port Front Panel Switch 4210 26-port rear panelDescribes the Speed LED on the 10/100Base-TX port Port LEDDescribes the 10/100Base-TX autosensing port’s Link/Act LED Switch Model Port PWR Technical SpecificationsTechnical specifications for the Switch Technical specifications for the Switch 4210 PWR models Earthing LeadSwitch SFP modules supported by the SwitchSFP Modules Supported forProduct Introduction Installing the Switch Installing the Switch Installing the switch in a 19-inch rack Mount the front bracket to the device Screw FrontInstallation completed Power-up SequenceReady for operation 4210Connecting a Redundant Power Supply52 for a list of suggested solutions PWR LED ColorsSystem Power Availability Switch 4210 Circuit Breaker and Cable RatingsRectifiers No Rectifier Redundancy +1 RectifierUsing Power over Ethernet RPS Connection to the SwitchConnecting RJ-45 Signal Direction DB9 consoleConsole Cable Terminal, as shown in FigureGND RXD DSR CTS Installing the Switch Managing Your Switch System View Methods of Managing a SwitchUser View Setting Up Your Refer to Setting Up Snmp Management onConfigured IP information Need toConfiguring IP Manually SnmpAutomatically Configuring the IP Address using Dhcp Configured IP ViewingAutomatically InformationUser View Login Manually Configuring IP Information Connecting to Console PortYou can manually configure the switch IP information by Connecting the Workstation to the SwitchSetting Up the Switch with IP Information Once you have logged in you are automatically in User ViewPrerequisites Using the Web Interface Using Command Line Interface using Telnet Enter the system-viewcommand and EnterWhere xxx.xxx.xxx.xxx is the IP address of the switch ManagementConsole Port Connection Network TelnetSetting Up Command Management usingSetting Up Web Line InterfaceSetting Up Snmp String is privateNew community string up to 32 characters String to be removedDefault Users PasswordsDefault Users User Default Name Password Access LevelProblem Solving Solving Problems Indicated by LEDsProblems Solving HardwareSolving Communication Problems Error message indicating that the SFP transceiver is faultyIP Addressing How do you obtain a registered IP Address?Formation Problems Solving FabricProblem Solving PIN-OUTS Null Modem CablePC-AT Serial Cable RJ-45 to RS-232 25-pinPin assignments Ethernet Port RJ-45 Pin Assignments10/100 and 1000BASE-T RJ-45 connections Obtaining Support for Your 3COM Products Available for purchase from your 3Com reseller Contact UsTelephone Technical Support and RepairCountry Telephone Number Latin America Telephone Technical Support and Repair US and Canada Telephone Technical Support and Repair3COM Network Management 3Com NetworkSupervisor DirectorAppendix C 3COM Network Management 3Com Enterprise Management SuiteIntegration Kit with HP OpenViewAppendix C 3COM Network Management Safety Information Important Safety Information’information de Sécurité Importante Wichtige SicherheitsinformationenInformación de Seguridad Importante Appendix D Redundant Power Supply Safety Information Ważne informacje o zabezpieczeniach Importanti Informazioni di SicurezzaAppendix D Redundant Power Supply Safety Information How to identify and resolve radio-TV interference problems Regulatory NoticesAppendix D Redundant Power Supply Safety Information