SMC Networks SMC6724L3 INT manual Appendix a Troubleshooting, Diagnosing Switch Indicators

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APPENDIX A

TROUBLESHOOTING

Diagnosing Switch Indicators

		Troubleshooting Chart

Symptom	Action

PWR LED is Off	•	Internal power supply has failed or is disconnected.
	•	Check connections between the switch, the power
		cord, and the wall outlet.
	•	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.
	•	If the switch is installed in a rack, check the
		connections to the punch-down block and patch
		panel.
	•	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 10/100 Page TigerSwitch 10/100 Installation Guide Trademarks Limited Warranty SMC Networks, Inc Tesla Irvine, CA Industry Canada Class a CompliancesFCC Class a EC Conformance Declaration Class a Japan Vcci Class a Australia AS/NZS 3548 1995 Class a Underwriters Laboratories Compliance Statement Safety ComplianceWarnhinweis Faseroptikanschlüsse Optische Sicherheit Wichtige Sicherheitshinweise Germany Viii Table of Contents Making Network Connections Installing the SwitchAppendices Table of Contents Overview Chapter About Tigerswitch 10/100SMC6724L3 Front and Rear Panels Switch ArchitectureManagement Options RJ-45 Ports Description of HardwarePort Status LEDs Ports Status LEDsSystem Status LEDs System Status LEDsOptional 100BASE-FX Module SMC6824FSSC Optional Media Extender ModulesOptional 10/100/1000BASE-T Module SMC6824GT Optional 1000BASE-X Gbic Module SMC6824GB Optional 100BASE-FX Module SMC6824FMSCPower Supply Receptacle Optional Redundant Power UnitExpandability Features and BenefitsConnectivity Management PerformanceAbout the Tigerswitch 10/100 Chapter Network Planning Introduction to SwitchingCollapsed Backbone Application ExamplesCentral Wiring Closet Central Wiring ClosetRemote Connection with Fiber Cable Remote Connection with Fiber CableMaking Vlan Connections Making Vlan ConnectionsIP Routing for Unicast Traffic Using Layer 3 RoutingMbps Gigabit Ethernet Collision Domain Connectivity Rules10/100 Mbps Ethernet Collision Domain Application Notes Network Planning Selecting a Site Installing the SwitchOptional Rack-Mounting Equipment Equipment ChecklistPackage Contents Rack Mounting MountingAttaching the Brackets Attaching the Adhesive Feet Desktop or Shelf MountingInstalling an Optional Module Installing an Optional Module into the SwitchInstalling a Gbic Transceiver Installing a Gbic TransceiverPower Receptacle Connecting to a Power SourceChapter Making Network Connections Connecting Network DevicesTwisted-Pair Devices Cabling GuidelinesMaking Twisted-Pair Connections Connecting to PCs, Servers, Hubs and SwitchesTWISTED-PAIR Devices Wiring Closet Connections Wiring Closet ConnectionsFiber Optic Devices Making SC Port Connections Diagnosing Switch Indicators Appendix a TroubleshootingIn-Band Access Power and Cooling ProblemsInstallation Appendix B Cables SpecificationsFiber SMF Twisted-Pair Cable and Pin Assignments10BASE-T/100BASE-TX Pin Assignments Figure B-1. RJ-45 Connector Pin NumbersCrossover Wiring Straight-Through Wiring1000BASE-T Pin Assignments 1000BASE-T Cable Requirements Cable Testing for Existing Category 5 CableAdjusting Existing Category 5 Cabling Console Port Pin Assignments Wiring Map for Serial CableCables Base Unit Appendix C SpecificationsPhysical Characteristics Compliances 100BASE-FX Extender Modules WarrantySlide-in Modules Model 1000BASE-T Extender Module1000BASE-X Gbic Module Specifications Appendix D Ordering Information Ordering Information 1000BASE-T GlossaryBandwidth Auto-NegotiationCollision Collision DomainFast Ethernet Fast Ethernet SwitchFull Duplex Gigabit EthernetIeee 802.3z Media Access Control MACLAN Segment Link SegmentStraight-through Port RJ-45 ConnectorSwitched Ports Glossary-6 Numerics IndexIndex-2 Index-3 Index-4 Page For Technical SUPPORT, Call