POEGEM24T4SFPUserManual
8
1.Introduction
1.1.OverviewofthePOEGEM24T4SFPSNMPManagedPOESwitch
ThePOEGEM24T4SFPfeatures20PoEcompliantportsrunningat10/100/1000Mbpsand4paired
10/100/1000MbpsCopper/mini‐GBIC(SFP)ports.ThePOEGEM24T4SFPisdesignedforhighport
densityPoEapplicationssuchasVoIPphonedeploymentorIPsecuritycameraenvironments.The
IntelligentLayer2SNMPmanagementfeaturesenablereliabletransportofcritical
VoIPandSecurity
data,evenincongestednetworkenvironments.VoIPrequiresprioritisationofVoiceCallsover
generalNetworkDataandSecuritysystemsrequirenotonlyprioritisation,butalsoportbasedlink
securityandreportingoflinkfailurestointelligentSNMPapplications.Theseandotherintelligent
networkfeaturesareallsupported
fromthePOEGEM24T4SFPswitch.
AllportsofthePOEGEM24T4SFPsupporttheIEEE802.3afPoEstandardforPowerInjection(PSE).
ThisinjectsPoEpowerontotheCat5eoraboveCablewhenitdetectsthepresenceofaPoE
compliantdevice.WhenoperatingwithnonPoEdevicestheswitchwillshutdown
thepower
injectingcircuitryandassuchnotcauseanydamagetoyournetworkdevices‐butstillallowthemto
runontheswitchasinthecaseofanormalEthernetdevice.
ThePOEGEM24T4SFPusesaninjectionvoltageofabout48VDConpins1,2,3,6
IntelligentNetworkfeatures
offeracompletemanagementsolutionthatcanenableyoutoscaleyour
networkfromasingledepartmentalswitchrightuptoanyEnterpriseenvironme nt.STP,RSTPand
MSTPoffernetworkredundancyfeatures,IGMPsnoopingofferssupportforStreamingVideoand
Multicastingimages,TaggedVLANofferslogicalsecurityandmanagementof
nodeswithindefined
groups.QOSbasedonportpriorityqueuesandTOSbytesensureefficientforwardingofcritical
networkdata.
TheSFPportscansupportthefollowingoptionalmini‐GBICmodulesforfibreopticcableconnections
(eithersinglemodeormultimodeterminatedinLCtypeconnectors):
• 1000Mbpsmultimode1000Base‐SX,
850nm,max.range500m
• 1000Mbpssinglemode1000Base‐LX,1310nm,max.range10Km
• 1000Mbpssinglemode1000Base‐LHX,1310nm,max.range40Km
• 1000Mbpssinglemode1000Base‐LHX,1550nm,max.range40Km
• 1000Mbpssinglemode1000Base‐ZX,1550nm,max.range70Km
• 1000Mbpssinglemode1000Base‐EZX,
1550nm,max.range100Km
• 1000MbpsWDMsinglemode/singlecore1310nm,max.range20Km
• 1000MbpsWDMsinglemode/singlecore1550nm,max.range20Km
Notes: *ThetwoWDM(WaveDivisionMultiplexer)mini‐GBICmodulesare
designedtofacilitatealinkoverasinglecoreofsinglemodefibrecable.
Thetwounitsmustbeusedinapairedmanner,oneateitherendofthelink.
*Mini‐GBICmodulesthataredesignedtotherelevantstandardsshouldbe
compatiblewithanymakeofswitchwithSFPports.Ifyouhaveconcerns
regardingcompatibility,pleasecontactthe
supplierofyourmini‐GBIC
product.