3onedata ES5018 User Manual

Contents

3onedata ES5018 User Manual Manual pdf 20 page image

User manual17Appendix Trouble shootingProblems Reasons SolutionsAll LEDs are offwhen power on theswitchPower cord connection error orpower supply failureCheck power cord connection and thepower socket.The LINK LED isunlit.1．Network cable is damaged orthe connection is not firm.2．Wrong network cable type orthe cable is longer than 100m.Change the network cable.Slower datatransmitting andpackets loss.The communication pattern ofswitch and PDs are notmatched.Changed to matched pattern orconfigure to auto-negotiation pattern.The network cableworks in oneport ,doesn’t work inanother new port.There is no data transmittingfrom PD and the switch can’tlearn a new address to docommunication.Waiting for 120s, the swith will getauto-updated address or transmittingdata from the PD, the switch will getaddress then.All the “ACT” LEDsflash and the networkrate slow downCaused by broadcast storm.1. Check if there is a loop problem,reasonably configure the network.2. Check if there are large numbers ofbroadcast packets from specific sites.Stop to work afterworking for a while.1. Abnormal power supply.2. Overheating.1. Check power connection and theworking voltage;2. Check the workingenvironment,including air hole andswitch fan.“PoE” LED indicatorsflash1. PoE port doesn’t work2. PD is overloaded3. The network cable isdamaged.Check the network cable, portconnection or reduce the load of PDs.

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