Allied Telesis AT-9000/12POE, AT-9000/28POE manual All Port LEDs Are Off

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AT-9000 Gigabit Ethernet Switch Installation Guide

All Port LEDs Are Off

If all of the port LEDs are off, even though the ports are connected to active host devices, the switch may be operating in the low-power mode. To toggle on the LEDs, press the ecoFriendly button on the front panel of the switch.

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Contents Installation Guide Page Electrical Safety and Emissions Standards Translated Safety Statements Contents Snmp Figures Figures Tables Tables Preface Document Conventions Contacting Allied Telesis AT-9000 Gigabit Ethernet Switch Installation Guide Overview ChapterSwitch Models and Features AT-9000 Series ModelsPower over Ethernet RS-232 Console PortManagement Methods AT-9000 Series Gigabit Ethernet Switches AT-9000/12POE SwitchAT-9000/12POE Switch Front and Rear Panels AT-9000/28 Switch SFP/RJ45AT-9000/28POE Switch AT-9000/28POE Switch Front and Rear PanelsAT-9000/28SP Switch AT-9000/28SP Switch Front and Rear PanelsAT-9000/52 Switch AT-9000/52 Switch Front and Rear Panels10/100/1000Base-T Twisted-Pair Ports Wiring Configuration Maximum Distance 10Mbps 100Mbps 1000Mbps Cable Type Non PoE PoE+ Power Over Ethernet Powered Device Classes Port Prioritization Wiring Implementation SFP Slots 10/100/1000 SFP Slot Base-T PortOverview Combo Ports Overview Console Port Mode LED Select Button LEDsLink LED Mode SFP LINK/ACT LEDs EcoFriendly Button Front Panel ecoFriendly ButtonPower Supplies Power Connectors AT-9000 Gigabit Ethernet Switch Installation Guide Beginning the Installation Installation Procedures Reviewing Safety Precautions AT-9000 Gigabit Ethernet Switch Installation Guide Beginning the Installation AT-9000 Gigabit Ethernet Switch Installation Guide Selecting a Site Unpacking the Switch Installing the Switch on a Table or Rack Installing the Switch on a Table or Desktop Installing the Switch in a Rack Attaching Brackets for Rack Mounting Mounting the Switch in a Rack AT-9000 Gigabit Ethernet Switch Installation Guide Cabling the Networking Ports AT-9000 Gigabit Ethernet Switch Installation Guide Powering On the Switch Applying AC Power Connecting the AC Power CordPowering On the Switch Starting a Local Management Session Powering On the Switch Management Methods Local Management Telnet ManagementSecure Shell Management Web Browser Management AT-9000 Gigabit Ethernet Switch Installation Guide Adding a Management IP Address Awplus enable Troubleshooting Power LED Is Off Twisted-Pair Port Link LED Is Off AT-9000 Gigabit Ethernet Switch Installation Guide Cannot Establish a Local Out-of-Band Management Session All Port LEDs Are Off Power Over Ethernet Fiber Optic Transceivers Slow Performance Between Switch and Host Device AT-9000 Gigabit Ethernet Switch Installation Guide Physical Specifications Technical SpecificationsAppendix a Environmental Specifications Power SpecificationsQuality and Reliability Safety and Electromagnetic Emissions CertificationsCompliance Standards 10/100/1000Base-T Twisted-Pair Port Connectors Pin SignalPin Pair Signal Console Port PinoutsAT-9000 Gigabit Ethernet Switch Installation Guide