Accton Technology ES4324 manual Appendix a Troubleshooting, Diagnosing Switch Indicators

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Appendix A: Troubleshooting

Diagnosing Switch Indicators

	Table A-1 Troubleshooting Chart
Symptom	Action

Power LED is Off	• Check connections between the switch, the power cord, and the wall
	outlet.
	• Contact your dealer for assistance.
	• Contact our 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.

Power and Cooling Problems

If the power indicator does not turn on when the power cord is plugged in, you may have a problem with the power outlet, power cord, or internal power supply. However, if the unit powers off after running for a while, check for loose power connections, power losses or surges at the power outlet, and verify that the fans on the unit are unobstructed and running prior to shutdown. If you still cannot isolate the problem, then the internal power supply may be defective.

A-1

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Contents Powered by Accton Page Port Gigabit Lite Switch ES4324 E092007-AP-R01 150200057600A Compliances and Safety Warnings CE Mark Declaration of Conformance for EMI and Safety EEC Safety Compliance Or Nema 6-15P 15 A, 250 V configuration France et Pérou uniquement Die Aufschrift HAR oder Basec tragen Environmental Statement Viii Contents Appendix B Cables Appendix a TroubleshootingAppendix C Specifications Making Network ConnectionsTables Figures Overview Introduction10/100/1000BASE-T Ports Switch ArchitectureDescription of Hardware Network Management OptionsLED Port and Power Status LEDsExpandability Features and BenefitsPower Supply Socket ConnectivityManagement Introduction Network Planning Introduction to SwitchingCollapsed Backbone Application ExamplesCentral Wiring Closet Central Wiring ClosetRemote Connections with Fiber Cable Remote Connections with Fiber CableVlan Making Vlan ConnectionsApplication Notes Selecting a Site Installing the SwitchEthernet Cabling Package Contents Equipment ChecklistOptional Rack-Mounting Equipment Rack Mounting MountingDesktop or Shelf Mounting Installing the Switch in a RackInserting an SFP Transceiver into a Slot Installing an Optional SFP TransceiverPower Socket Connecting to a Power SourceCabling Guidelines Connecting Network DevicesMaking Network Connections Twisted-Pair DevicesMaking Twisted-Pair Connections Connecting to PCs, Servers, Hubs and SwitchesWiring Closet Connections Network Wiring ConnectionsFiber Optic SFP Devices Making Connections to SFP Transceivers 1000BASE-T Cable Requirements Connectivity RulesMbps Gigabit Ethernet Collision Domain Mbps Ethernet Collision Domain Mbps Fast Ethernet Collision DomainCable Labeling and Connection Records Diagnosing Switch Indicators Appendix a TroubleshootingPower and Cooling Problems In-Band Access InstallationTwisted-Pair Cable and Pin Assignments Appendix B Cables10BASE-T/100BASE-TX Pin Assignments Cables Straight-Through Wiring1000BASE-T Pin Assignments Crossover WiringAdjusting Existing Category 5 Cabling to Run 1000BASE-T Cable Testing for Existing Category 5 CableFiber Standards Physical Characteristics Appendix C SpecificationsManagement Features Switch FeaturesStandards Compliances Specifications Glossary Full Duplex End StationEthernet Fast EthernetLayer Media Access Control MACIeee 802.3z LAN SegmentTransmission Control Protocol/Internet Protocol TCP/IP Redundant Power Supply RPSRJ-45 Connector Switched PortsNumerics IndexIndex-2 Page ES4324 E092007-AP-R01 150200057600A