User manual

 16‐PortGigabitEthernetPoE+Web‐ManagedSwitchwith2SFPPorts

18

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Item Description

Workingmode Thisparametercontrolstheduplexmode.Inafull‐duplexsystem,bothpartiescan

communicatetotheothersimultaneously.Anexampleofafull‐duplexdeviceisa

telephone;thepartiesatbothendsofacallcanspeakandbeheardbytheotherparty

simultaneously.Innetworkingterms,fullduplexallowsreceivingandtransmittingof

dataatthesametime,whereashalfduplexdoesnot.Ifthetelephoneisanexample

forfullduplex,thenapush‐to‐talkCBradioor"walkie‐talkie"representshalfduplex.

Theswitchcaneitherreceiveorsenddata,butitcanneverhappensimultaneously.

Unlessyouhaveaspecificreasonnottodoso,thisshouldbeleftin“Auto”mode.

Crosslineorder AutoMDI‐Xautomaticallydetectstherequiredcable‐connectiontypeandconfigures

theconnectionappropriately,removingtheneedforcrossovercablestointerconnect

switchesorforconnectingPCspeer‐to‐peer.Aslongasitisenabledoneitherendofa

link,eithertypeofcablecanbeused.ForautoMDI‐Xtooperatecorrectly,thedata

rateontheinterfaceandduplexsettingmustbesetto"auto."WhentwoautoMDI‐X

portsareconnectedtogether,whichisnormalformodernproducts,thealgorithm

resolutiontimeistypically<500ms.However,a~1.4secondasynchronoustimeris

usedtoresolvetheextremelyrarecase(withaprobabilityoflessthan1in5×10

)ofa

loopwhereeachendkeepsswitching.Ifyoudon’tunderstandanyofthis,simplyleave

thisvalueon“Auto.”

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Thescreenalsoshowsatablethatlistsall18portsalongwiththeirparameters.The“megaframe”valuereferstojumbo

frames,whichareEthernetframeswithmorethan1500bytesofpayload.Definethesizeofthejumboframesinthe

sectionSYSTEM‐>SYSTEMCONFIG.

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 Clickingthepencilallowseditingtheportsettings,exactlythesamewayasdirectlyselectingtheport(s)as

shownonthepreviouspage.

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