NETGEAR FS 726, FS 750 manual Troubleshooting Chart

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CHAPTER 5: TROUBLESHOOTING

This chapter provides guidance in troubleshooting the NETGEAR FS726 and FS750 Switches. Information includes:

•Troubleshooting information table

•Additional troubleshooting suggestions

Troubleshooting Chart

Table 5-1 lists symptoms, causes, and solutions of possible problems.

Table 5-1. Troubleshooting Chart

Symptom	Cause	Solution
Power LED is off.	No power is received	Check the power cord connections
		for the switch at the switch. and the
		connected device.
		Make sure all cables used are
		correct and comply with Ethernet
		specifications.

Link LED is off	Port connection is not working	Check the crimp on the connectors
or intermittnet.		and make sure that the plug is
		properly inserted and locked into the
		port at both the switch and the
		connecting device.
		Make sure all cables used are
		correct and comply with Ethernet
		specifications. See Appendix C.
		Check for a defective adapter card,
		cable, or port by testing them in an
		alternate environment where all
		products are functioning.

troubleshooting 5-1

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Contents Modular Fast Ethernet Switch Trademarks Statement of ConditionsCertificate of the Manufacturer/Importer Voluntary Control Council for Interference Vcci StatementEN 55024 Declaration of Conformity IiiCustomer Support Internet/World Wide WebContents Connector Pin Assignments Troubleshooting InformationTechnical Specifications Appendix C Cabling GuidelinesTables Tables Introduction IntroductionDescription Key Features FeaturesKey Features Additional Features Introduction Package Contents Physical Description Front and Back PanelsFront and Back Panels of the FS726 Switch Front and Back Panels of the FS750 Switch 10/100 Mbps RJ-45 PortsLED Mode Button and LED Descriptions Front Panel LEDsModule Bays Auto UplinkCreating Redundant Paths between Network Devices Example Reset Button Desktop Switching ApplicationsSegment Switching and Bridging from 10 Mbps to 100 Mbps Media Compatibility and ConversionExample of Media Compatibility and Conversion Applications Installation InstallationCharacteristics Requirements Preparing the SiteInstalling the Switch in a Rack Installing the SwitchInstalling the Switch on a Flat Surface Connecting Devices to the Switch Connecting Devices to the Switch InstallationUsing Gigabit Ethernet Modules Checking the Installation Applying AC PowerInstallation Troubleshooting Troubleshooting ChartTroubleshooting Chart TroubleshootingTo is powered on and operating Additional Troubleshooting Suggestions ConfigurationSwitch Integrity Network Adapter CardsAppendix a Technical Specifications Network Protocol and Standards CompatibilityData Rate InterfacePerformance Specifications FS726 FS750Physical Specifications FS726 Environmental SpecificationsElectromagnetic Susceptibility Safety Agency ApprovalsElectromagnetic Emissions Appendix B Connector PIN Assignments RJ-45 Plug and RJ-45 Connector100/1000 Mbps RJ-45 Plug and RJ-45 Connector Pin Assignments Duplex SC Plug and Duplex SC Connector Cabling guidelines Appendix C Cabling GuidelinesFast Ethernet Cable Guidelines Category 5 Cable Table C-1. Electrical Requirements of Category 5 Cable Category 5 Cable SpecificationsTwisted Pair Cables Figure C-1 illustrates straight-through twisted pair cable Patch Panels and Cables Return Loss CablingLength Conclusion Near End Cross Talk NextPatch Cables Fiber Cable Specifications Fiber Optic CablesGigabit Cable Guidelines Table C-2. Electrical Requirements of Fiber Optic CableIndex Index NETGEAR, Inc