3Com 16985ua.bk Choosing, Correct Cables, Port, you need a cross-over cable. Most of the 10BASE-T

Page 30

30CHAPTER 2: INSTALLING THE SWITCH

 

Table 4

LED colors

 

 

 

 

 

Color

State

 

 

 

 

 

Green

The Switch is powered-up and

 

 

operating normally

 

Yellow

The Switch has failed its Power On Self

 

 

Test. This occurs if any of the ports fail

 

 

during power-up.

 

Off

The Switch is not receiving power.

 

 

 

 

If there is evidence of a problem, see “Solving Problems Indicated by

 

LEDs” on page 31.

 

 

 

Choosing the

All of the ports on the front of the Switch 3300 MM are configured as

Correct Cables

MDIX (cross-over). If you want to make a connection to another MDIX

 

port, you need a cross-overcable. Most of the 10BASE-T and

 

100BASE-TX ports on 3Com devices are MDIX-only. Many ports on

workstations and servers are configured as MDI (straight-through). If you want to make a connection to an MDI port, you need to use a standard straight-throughcable. This is illustrated in Figure 10.

Figure 10 Connecting other devices to the Switch 3300 MM

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Contents SuperStack 3Com Corporation 5400 Bayfront Plaza Santa Clara, California Contents PIN -OUTS Page Page About this Guide Conventions Icon DescriptionConvention Description Related DocumentationComments YearCompliance ProductIntroducing the Switch 3300 MM About SuperStack Switch 3300 MM Summary of FeaturesSwitch 3300 MM Front View Detail Switch 3300 MM front viewPower/Self Test LED Color Indicates Port Status LEDsUnit LEDs Switch 3300 MM Rear View Detail Power SocketUnits on Network ConfigurationSwitch 3300 MM as a ExamplesSwitch Using the Switch as a collapsed backboneUsing the Switch in a desktop environment Fast Ethernet configuration rules Configuration Rules with Full Duplex Introducing the Switch 3300 MM Installing the Switch Rack-mounting Repeat steps 2 and 3 for the other side of the Switch Fitting a bracket for rack mountingStacking Units Treated as a single manageable unit with one IP addressStacking Units Stack of three units Switch 3300 MM Power-upPowered-up and ready for operation SequencePort, you need a cross-over cable. Most of the 10BASE-T ChoosingCorrect Cables Color StateProblem Managing SwitchNetwork. For information on managing the Switch using GuideSafety Information Important Safety InformationPersonnel only Important Safety Information Personnel qualifié ’information deSécurité Importante Étroites’information de Sécurité Importante Wichtige Sicherheitsinformat ionen Pin to RS-232 25-pin Null Modem CablePC-AT Serial Cable Pin to 9-pinModem Cable ConnectorsPin Number Signal Function RJ45 PinPin Number Signal Function Appendix B PIN-OUTS Power Supply Physical DimensionsSafety Environmental RequirementsVlan MIB RFC Services Online TechnicalUsername anonymous Europe, South Africa, and Middle East Country Telephone Number Asia, Pacific RimCountry Telephone Number Fax Number Glossary Endstation BroadcastCollision EthernetLine speed See baud Protocol LoopMulticast RepeaterSuperStack ServerStack TelnetGlossary Index Index 3Com Corporation Limited Warranty Page Disclaimer Regulatory Notices

16985ua.bk specifications

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