SMC Networks 100 manual Appendix a Troubleshooting, Diagnosing Switch Indicators

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APPENDIX A

TROUBLESHOOTING

Diagnosing Switch Indicators

	Troubleshooting Chart

Symptom	Action

Power LED is Off	• Internal or redundant power supply has failed or
	is disconnected.
	• Check connections between the switch, the
	power cord, the wall outlet, and the RPU if you
	are using one.
	• If the switch is installed in a rack, check the
	connections to the punch-down block and patch
	panel.
	• Contact SMC Technical Support.

Power LED is Flashing	• The switch is either downloading firmware or
	running the Power-On Self-Diagnostics Test
	(POST). If this LED does not stop flashing, then
	POST has failed, and you should contact SMC
	Technical Support.

Link LED is Off	• Verify that the switch and attached device are
	powered on.
	• Be sure the cable is plugged into both the switch
	and corresponding device.
	• Verify that the proper cable type is used and its
	length does not exceed specified limits.
	• Check the adapter on the attached device and
	cable connections for possible defects. Replace
	the defective adapter or cable if necessary.

A-1

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Contents TigerSwitch Page TigerSwitch Installation Guide Trademarks Limited Warranty Limited Warranty Compliances FCC Class aEC Conformance Declaration Class a Industry Canada Class a Iii Safety ComplianceWarnhinweis Faseroptikanschlüsse Optische Sicherheit Underwriters Laboratories Compliance StatementWichtige Sicherheitshinweise Germany Table of Contents Making Network Connections Vii Viii Overview Chapter About TigerswitchOptional Modules Switch ArchitectureDescription of Hardware Management Options100BASE-FX VF-45 Ports Port and System LEDs Status LEDsNetwork Management Module Network Management ModuleVLANs Spanning Tree ProtocolOptional Media Extender Modules Multicast SwitchingTraffic Priority Optional 100BASE-FX Module SMC6900FSCOptional 100BASE-FX Module SMC6900FSSC Optional 1000BASE-SX Module SMC6900GOptional 1000BASE-LX Module SMC6900GLSC Optional Redundant Power Unit SMCRPU150W Optional 1000BASE-T Module SMC6900GTOptional Stack Module SMC6900S 12. Power Supply Receptacles Power Supply ReceptaclesFeatures and Benefits ConnectivityExpandability Management PerformanceAbout the Tigerswitch About the Tigerswitch Chapter Network Planning Introduction to SwitchingCollapsed Backbone Sample ApplicationsCentral Wiring Closet Central Wiring ClosetRemote Connections with Fiber Cable Collapsed Backbone Using Fiber CableMaking Vlan Connections Making Vlan ConnectionsMbps Gigabit Ethernet Collision Domain Connectivity RulesMaximum 1000BASE-T Optic Cable Distance Maximum 1000BASE-SX Fiber Optic Cable DistanceMbps Fast Ethernet Collision Domain Maximum Network Diameter Using RepeatersMaximum 100BASE-FX Fiber Optic Cable Distance SMC 3-2 Rule for Class II RepeatersMaximum Fast Ethernet Cable Distance Cable Type Connecting Max. DistanceApplication Notes Network Planning Selecting a Site Installing the SwitchEquipment Checklist Package ContentsOptional Rack-Mounting Equipment Rack Mounting MountingAttaching the Brackets Attaching the Adhesive Feet Desktop or Shelf MountingInstalling an Optional Module into the Switch Stacking Installing a ModuleStacking the Switches Power Receptacle Connecting to a Power SourceInstalling the Switch Chapter Making Network Connections Connecting Network DevicesVF-45 Fiber Connections SC Fiber Connections Making SC Port Connections Connecting to PCs, Servers, Hubs and Switches 1000BASE-T Twisted-Pair ConnectionsCabling Guidelines Making Twisted-Pair Connections Wiring Closet Connections Wiring Closet ConnectionsMaking Network Connections Diagnosing Switch Indicators Appendix a TroubleshootingPower and Cooling Problems InstallationIn-Band Access Troubleshooting Troubleshooting Appendix B Cables SpecificationsCables 1000BASE-T Pin Assignments RJ-45 Port and Cable Assignments1000BASE-T Cable Requirements Cable Testing for Existing Category 5 CableAdjusting Existing Category 5 Cabling DB-9 Port Pin Assignments Console Port Pin AssignmentsConsole Port to 9-Pin COM Port on PC Console Port to 25-Pin DCE Port on ModemConsole Port to 25-Pin DTE Port on PC Cables Physical Characteristics Appendix C SpecificationsTemperature WeightPower Supply Power ConsumptionSwitch Features Management Features Warranty StandardsCompliances Slide-in Module 100BASE-FX Extender Module1000BASE-SX Extender Module 1000BASE-T Extender Module 1000BASE-LX Extender ModuleConnector Interface Agent ModuleStack Module Appendix D Ordering Information Ordering Information Glossary-1 Glossary1000BASE-T Auto-NegotiationGlossary-2 Glossary-3 Glossary-4 Glossary-5 Glossary-6 Transmission Control Protocol/Internet Protocol TCP/IPVirtual LAN Vlan Index-1 IndexIndex-2 See RPU Index-3Index-4 Page Internet