Allied Telesis AT-9408LC/SP, AT-9424T/POE manual System Fault LED is Steadily On

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AT-9400 Series Gigabit Ethernet Switches Installation Guide

System Fault LED is Steadily On

If the system FAULT LED is steadily on, a problem has occurred in the switch. Do the following:

Try resetting the switch by disconnecting and reconnecting the AC power cord.

If the FAULT LED remains ON, try downloading a new version of the switch’s management software. For instructions, refer to the AT-S63 Management Software User Guides.

Note

If the FAULT LED remains steadily on, contact Allied Telesis

Technical Support for assistance.

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Contents Installation Guide Page Electrical Safety and Emissions Standards Translated Safety Statements Contents Page Preface Product Documentation Where to Go First Starting a Management Session Symbol Meaning Description Safety Symbols Used in this DocumentWhere to Find Web-based Guides Contacting Allied Telesis Management Software UpdatesPreface Chapter OverviewOverview Descriptions AT-9408LC/SP SwitchShows the front and back panels of the AT-9424T/GB Switch AT-9424T/GB Switch10/100/1000Base-T Ports Port and SFP System Slot LEDs AT-9424T/SP SwitchShows the front and back panels of the AT-9424T Switch 10/100/1000Base-T POE Ports Port and SFP System Slot LEDs AT-9424T/POE SwitchShows the front and back panels of the AT-9424Ts Switch AT-9424Ts SwitchSFP Slots XFP Slots AT-9424Ts/XP Switch10/100/1000Base-T Ports Card Slot AT-9448T/SP SwitchCompact Flash 10/100/1000Base-T Ports Card Slot AT-9448Ts/XP Switch10/100/1000Base-T Twisted Pair Ports Connector Type Speed Duplex ModeMaximum Distance Cable Type Auto-MDI/ MDI-X Port PinoutsFiber Optic Ports Connector Type Speed Maximum Distance CablingGbic Transceiver Gbic Transceiver SlotsIllustrates an SFP transceiver SFP Transceiver SlotsShows an example of an XFP transceiver XFP Transceiver SlotsModel Ports and Slots Redundant Twisted Pair PortsAT-9400 Series Gigabit Ethernet Switches Installation Guide Compact Flash Card Slot 10/100/1000Base- T Twisted Pair Port LEDs Port LEDsFunction State Description Fiber Optic Port Transceiver Slot LEDs State Description System LEDsMstr Stack LEDsExpansion Slot Stack Installation GuideTerminal Port Power Over Ethernet Minimum Power Maximum Power Class AT-RPS3204 Redundant Power Supply AC Power Connector Installing the Switch Reviewing Safety Precautions AT-9400 Series Gigabit Ethernet Switches Installation Guide Installing the Switch Selecting a Site Maximum Twisted Pair and Fiber Optic Cable SpecificationsSpeed Cable Type Cable Type Maximum Operating Fiber Optic Cable SpecificationsUnpacking the Switch Inserting the Retaining Clip into the Retaining Bracket Installing the Power Cord Retaining Clip AC Switches OnlyAttaching Rack-Mount Brackets Installing the Switch in a RackMounting the Switch in a Rack Installing a Gbic Transceiver Installing Optional TransceiversInstalling an SFP Transceiver SFP Handle Installing an XFP Transceiver Installing an XFP TransceiverInstalling the Switch Cabling the Twisted Pair or Fiber Optic Ports Connecting the AC Power Cord Applying AC Power240VAC 9408 Starting a Local Management SessionAT-9400 Series Gigabit Ethernet Switches Installation Guide Warranty Registration Troubleshooting Power LED is Off Twisted Pair Port Link LED is Off Fiber Optic Port Link LED is Off Transceiver is Installed but the Status is Not Present System Fault LED is Blinking System Fault LED is Steadily On Cannot Establish a Local Out-of-Band Management Session Switch Functions Intermittently Troubleshooting AT-9400 Series Dimensions H x W x D Switch Physical SpecificationsAppendix a AT-9400 Series Weight Switch Environmental SpecificationsCertifications Power SpecificationsRJ-45 Twisted Pair Port Pinouts Pin SignalPinout Pair Property Value AT-9408LC/SP Switch 1000Base-SX Port SpecificationsRJ-45 Style Serial Terminal Port Pinouts RPS 21-pin D-combo Port and Connector PinoutsPin Definition