3Com 3 manual SFP Operation, SFP port on the Switch 4200 28-Port, Color State

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SFP Operation 25

When the POST has completed, check the Power On Self Test LED to make sure that your Switch is operating correctly. Table 6 shows possible colors for the LED.

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.

SFP Operation	The following section describes how to insert an SFP transceiver into an
	SFP port on the Switch 4200 28-Port.
	SFP transceivers are hot-insertable and hot-swappable. You can remove
	them from and insert them into any SFP port without having to power
	down the Switch.

Approved SFP The following list of approved SFP transceivers is correct at the time of Transceivers publication.

■3CSFP91 SFP (SX)

■3CSFP92 SFP (LX)

■3CSFP93 SFP (T)

■3CSFP97 SFP (LH)

To access the latest list of approved SFP transceivers for the Switch on the 3Com Corporation World Wide Web site, enter this URL into your internet browser:

http://www.3com.com

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Contents SuperStack United States Government Legend 3Com Corporation 350 Campus Drive Marlborough, MAContents Setting UP for Management PIN-OUTS Page About this Guide Icon Description ConventionsConvention Description Documentation RelatedAbout this Guide Introducing Family About the SwitchFront View Detail Switch 4200 FamilyIntroducing the Superstack 3 Switch 4200 Family Port Status LEDs SFP ports Color Indicates Port Status LEDs 10BASE-T/100BASE-TX portsPort Status LEDs 10/100/1000BASE-T ports Unit LEDsRear View Detail LED Color Indicates Power/Self Test LEDAlert LED Duplex Mode Feature Switch 4200 Family Automatic IP ConfigurationRmon Alarm Quality of Service QoSIntroducing the Superstack 3 Switch 4200 Family Installing the Switch Choosing a Suitable Package ContentsSite Rack-mounting Fitting a bracket for rack-mounting Repeat steps 2 and 3 for the other side of the SwitchTop of Each Other Placing Units OnStacking Units Powering-up Power-upSwitch 4200 Family SequenceSFP Operation SFP port on the Switch 4200 28-PortColor State Installing the Switch Choosing Your SwitchCorrect Cables TransceiverCross-over Cable Straight-through Cable Fiber CablesChoosing the Correct Cables Installing the Switch Setting UP for Management Configure IP information manually for your Switch or view Setting UpAutomatically configured IP information OverviewAutomatic IP Configuration Manual IP ConfigurationSetting UP for Management Pre-requisites Manually Configuring IP InformationConfiguring the Workstation with IP Information Connecting the Workstation to the SwitchSetting Up the Switch with IP Information Using Command Line Interface via Telnet Example top-level command line interface menu Connecting a workstation to the Switch via the console port 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 Methods of Managing a Switch Refer to Setting Up Command Line Interface Management on Network Using Telnet Command LineInterface Management CLI Management viaInterface Setting Up WebChoosing a Browser Management Protocol Snmp can manage a Switch if Setting Up SnmpOver the Network Management workstationUser Default Access Level Name Password Default UsersSecurity Device User Modify operation on the web interface Security device user modify command on the CLI, orSetting UP for Management For Technical Support information, see Appendix D Problem SolvingSolutions below Solving ProblemsPower LED does not light On powering-up, the Power/Self Test LED lights yellowError message indicating that the SFP transceiver is faulty Solving Communication ProblemsIP Addressing Solving Stack Upgrade ProblemsFormation Solving SoftwareSafety Information This must be approved for the country where it is used Important Safety InformationImportant Safety Information ’information de Sécurité Importante Schko Wichtige Sicherheitsinformationen Vorsicht Europe Información de seguridad importante Schuko Importanti informazioni di sicurezza Avvertenza Lunità deve disporre di messa a terra Prodotto Laser Classe PC-AT Serial Cable Null Modem CablePin to RS-232 25-pin Pin to 9-pinRJ-45 Pin Modem CableAssignments Pin Number 10/100 1000Pin Number 10/100 1000 Appendix B PIN-OUTS Switch 4200 26-Port 3C17300A Switch 4200 50-Port 3C17302A Switch 4200 28-Port 3C17304A Appendix C Technical Specifications Register Your ServicesProduct PurchaseTroubleshoot Access SoftwareOnline DownloadsContact Us Latin America Telephone Technical Support and Repair Country Telephone NumberUS and Canada Telephone Technical Support and Repair Numbers IndexSFP ports 14 SFP transceiver Regulatory Notices

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